From patchwork Thu Aug 13 20:39:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sedat Dilek X-Patchwork-Id: 7010861 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id CE4F3C05AC for ; Thu, 13 Aug 2015 20:39:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 865F820615 for ; Thu, 13 Aug 2015 20:39:17 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 3E6DB205E1 for ; Thu, 13 Aug 2015 20:39:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A15728A52D; Thu, 13 Aug 2015 13:39:12 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6F8588A52D for ; Thu, 13 Aug 2015 13:39:10 -0700 (PDT) Received: by wicne3 with SMTP id ne3so272323200wic.1 for ; Thu, 13 Aug 2015 13:39:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=RPVhMPJcxXv9Cr5ZV6+6RAqETgmtqhTveWtGpAmSYic=; b=pxu8/18IWsvGw0piAI2XtM4J8/Cj83ejj2HcJAZ6PJal6KeNdW0O3I0eak2Zrnub6G uAd/Ji7+0y7CJ/gYCJjKNHn5Ib0UCpzxetLT2oae1WOwGN/XZPXDqO2V1EFYebUak1pN z5aegCFjWd5EJ1ghp/DyncJLL2+yE1UPdNioiMau+a/NgzpA5y2dDmvG5AOTzO7ss5f2 /KPykoehwzb9EO2XhxaqhPAcQFVpCQkMweCA3+7fFBUNX42Mu5NaAAo43OJpMSZICXZu M7imctbhPf5EH3y/1VK8QrgxvOhnv7hxGfSww3pa0Mv8p4sKSz5hwfHwTuZ4WUdjZws7 l3KA== MIME-Version: 1.0 X-Received: by 10.180.96.34 with SMTP id dp2mr55500229wib.57.1439498349133; Thu, 13 Aug 2015 13:39:09 -0700 (PDT) Received: by 10.27.174.18 with HTTP; Thu, 13 Aug 2015 13:39:08 -0700 (PDT) In-Reply-To: <1439484817-2888-1-git-send-email-hdegoede@redhat.com> References: <1439484817-2888-1-git-send-email-hdegoede@redhat.com> Date: Thu, 13 Aug 2015 22:39:08 +0200 Message-ID: From: Sedat Dilek To: Hans de Goede Cc: Aaron Lu , Daniel Vetter , intel-gfx , "Rafael J. Wysocki" , Linux ACPI , Zhang Rui , Linus Torvalds , Len Brown Subject: Re: [Intel-gfx] [PATCH] ACPI / video: Fix circular lock dependency issue in the video-detect code X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sedat.dilek@gmail.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On Thu, Aug 13, 2015 at 6:53 PM, Hans de Goede wrote: > Before this commit, the following would happen: > > a) acpi_video_get_backlight_type() gets called > b) acpi_video_get_backlight_type() calls acpi_video_init_backlight_type() > c) acpi_video_init_backlight_type() locks its function static init_mutex > d) acpi_video_init_backlight_type() calls backlight_register_notifier() > e) backlight_register_notifier() takes its notifier-chain lock > > And when the backlight notifier chain gets called we've: > > 1) blocking_notifier_call_chain() gets called > 2) blocking_notifier_call_chain() takes the notifier-chain lock > 3) blocking_notifier_call_chain() calls acpi_video_backlight_notify() > 4) acpi_video_backlight_notify() calls acpi_video_get_backlight_type() > 5) acpi_video_get_backlight_type() calls acpi_video_init_backlight_type() > 6) acpi_video_init_backlight_type() locks its function static init_mutex > > So in the first call sequence we have: > > a) init_mutex gets locked > b) notifier-chain gets locked > > and in the second call sequence we have: > > 1) notifier-chain gets locked > 2) init_mutex gets locked > > And we've a circular locking dependency. This specific locking dependency > is fixable without using the big hammer otherwise known as a workqueue, > but further analysis shows a similar problem with the backlight notifier > chain lock vs register_count_mutex from drivers/acpi/acpi_video.c, > and fixing that becomes problematic. > > So this commit simply fixes this with the big hammer, performance > wise this is a non issue as we expect the work to get scheduled > exactly zero or one times during normal system use. > This patch on top of Linux v4.2-rc6 fixes the issue for me. Feel free to add my... Reported-by: Sedat Dilek Tested-by: Sedat Dilek - Sedat - > Signed-off-by: Hans de Goede > --- > drivers/acpi/video_detect.c | 16 +++++++++++++--- > 1 file changed, 13 insertions(+), 3 deletions(-) > > diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c > index 815f75e..2922f1f 100644 > --- a/drivers/acpi/video_detect.c > +++ b/drivers/acpi/video_detect.c > @@ -32,6 +32,7 @@ > #include > #include > #include > +#include > #include > > ACPI_MODULE_NAME("video"); > @@ -41,6 +42,7 @@ void acpi_video_unregister_backlight(void); > > static bool backlight_notifier_registered; > static struct notifier_block backlight_nb; > +static struct work_struct backlight_notify_work; > > static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef; > static enum acpi_backlight_type acpi_backlight_dmi = acpi_backlight_undef; > @@ -262,6 +264,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = { > { }, > }; > > +/* This uses a workqueue to avoid various locking ordering issues */ > +static void acpi_video_backlight_notify_work(struct work_struct *work) > +{ > + if (acpi_video_get_backlight_type() != acpi_backlight_video) > + acpi_video_unregister_backlight(); > +} > + > static int acpi_video_backlight_notify(struct notifier_block *nb, > unsigned long val, void *bd) > { > @@ -269,9 +278,8 @@ static int acpi_video_backlight_notify(struct notifier_block *nb, > > /* A raw bl registering may change video -> native */ > if (backlight->props.type == BACKLIGHT_RAW && > - val == BACKLIGHT_REGISTERED && > - acpi_video_get_backlight_type() != acpi_backlight_video) > - acpi_video_unregister_backlight(); > + val == BACKLIGHT_REGISTERED) > + schedule_work(&backlight_notify_work); > > return NOTIFY_OK; > } > @@ -304,6 +312,8 @@ enum acpi_backlight_type acpi_video_get_backlight_type(void) > acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, > ACPI_UINT32_MAX, find_video, NULL, > &video_caps, NULL); > + INIT_WORK(&backlight_notify_work, > + acpi_video_backlight_notify_work); > backlight_nb.notifier_call = acpi_video_backlight_notify; > backlight_nb.priority = 0; > if (backlight_register_notifier(&backlight_nb) == 0) > -- > 2.4.3 > [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 4.2.0-rc6-2-iniza-small (sedat.dilek@gmail.com@fambox) (gcc version 4.9.2 (Ubuntu 4.9.2-0ubuntu1~12.04) ) #1 SMP Thu Aug 13 22:28:39 CEST 2015 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.2.0-rc6-2-iniza-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] Disabled fast string operations [ 0.000000] x86/fpu: xstate_offset[2]: 0240, xstate_sizes[2]: 0100 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 0x340 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009d800-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000201fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000020200000-0x000000003fffffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000040000000-0x00000000401fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000040200000-0x00000000d9c9efff] usable [ 0.000000] BIOS-e820: [mem 0x00000000d9c9f000-0x00000000dae7efff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000dae7f000-0x00000000daf9efff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x00000000daf9f000-0x00000000daffefff] ACPI data [ 0.000000] BIOS-e820: [mem 0x00000000dafff000-0x00000000daffffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000db000000-0x00000000df9fffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed08000-0x00000000fed08fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000ffd80000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000011fdfffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.6 present. [ 0.000000] DMI: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013 [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] e820: last_pfn = 0x11fe00 max_arch_pfn = 0x400000000 [ 0.000000] MTRR default type: uncachable [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-protect [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 000000000 mask F80000000 write-back [ 0.000000] 1 base 080000000 mask FC0000000 write-back [ 0.000000] 2 base 0C0000000 mask FE0000000 write-back [ 0.000000] 3 base 0DC000000 mask FFC000000 uncachable [ 0.000000] 4 base 0DB000000 mask FFF000000 uncachable [ 0.000000] 5 base 100000000 mask FE0000000 write-back [ 0.000000] 6 base 11FE00000 mask FFFE00000 uncachable [ 0.000000] 7 base 0FFC00000 mask FFFC00000 write-protect [ 0.000000] 8 disabled [ 0.000000] 9 disabled [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xdb000 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f00e0-0x000f00ef] mapped at [ffff8800000f00e0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Base memory trampoline at [ffff880000097000] 97000 size 24576 [ 0.000000] reserving inaccessible SNB gfx pages [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] BRK [0x02ccd000, 0x02ccdfff] PGTABLE [ 0.000000] BRK [0x02cce000, 0x02ccefff] PGTABLE [ 0.000000] BRK [0x02ccf000, 0x02ccffff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x11fc00000-0x11fdfffff] [ 0.000000] [mem 0x11fc00000-0x11fdfffff] page 2M [ 0.000000] BRK [0x02cd0000, 0x02cd0fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x100000000-0x11fbfffff] [ 0.000000] [mem 0x100000000-0x11fbfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0xc0000000-0xd9c9efff] [ 0.000000] [mem 0xc0000000-0xd9bfffff] page 2M [ 0.000000] [mem 0xd9c00000-0xd9c9efff] page 4k [ 0.000000] BRK [0x02cd1000, 0x02cd1fff] PGTABLE [ 0.000000] BRK [0x02cd2000, 0x02cd2fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0xdafff000-0xdaffffff] [ 0.000000] [mem 0xdafff000-0xdaffffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x00100000-0x1fffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x1fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x20200000-0x3fffffff] [ 0.000000] [mem 0x20200000-0x3fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x40200000-0xbfffffff] [ 0.000000] [mem 0x40200000-0xbfffffff] page 2M [ 0.000000] RAMDISK: [mem 0x378f8000-0x37c73fff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F0100 000024 (v02 SECCSD) [ 0.000000] ACPI: XSDT 0x00000000DAFFE170 00008C (v01 SECCSD LH43STAR 00000002 PTEC 00000002) [ 0.000000] ACPI: FACP 0x00000000DAFEF000 00010C (v05 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: DSDT 0x00000000DAFF2000 0083AC (v02 SECCSD SNB-CPT 00000000 INTL 20061109) [ 0.000000] ACPI: FACS 0x00000000DAF47000 000040 [ 0.000000] ACPI: SLIC 0x00000000DAFFD000 000176 (v01 SECCSD LH43STAR 00000002 PTEC 00000001) [ 0.000000] ACPI: SSDT 0x00000000DAFFB000 001068 (v01 SECCSD PtidDevc 00001000 INTL 20061109) [ 0.000000] ACPI: ASF! 0x00000000DAFF1000 0000A5 (v32 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: HPET 0x00000000DAFEE000 000038 (v01 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: APIC 0x00000000DAFED000 000098 (v03 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: MCFG 0x00000000DAFEC000 00003C (v01 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: SSDT 0x00000000DAFEB000 000804 (v01 PmRef Cpu0Ist 00003000 INTL 20061109) [ 0.000000] ACPI: SSDT 0x00000000DAFEA000 000996 (v01 PmRef CpuPm 00003000 INTL 20061109) [ 0.000000] ACPI: UEFI 0x00000000DAFE9000 00003E (v01 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: UEFI 0x00000000DAFE8000 000042 (v01 PTL COMBUF 00000001 PTL 00000001) [ 0.000000] ACPI: UEFI 0x00000000DAFE7000 00026A (v01 SECCSD LH43STAR 00000002 PTL 00000002) [ 0.000000] ACPI: SSDT 0x00000000DAFE6000 0000D0 (v01 Iffs IffsAsl 00003000 INTL 20061109) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000011fdfffff] [ 0.000000] NODE_DATA(0) allocated [mem 0x11fdf8000-0x11fdfcfff] [ 0.000000] [ffffea0000000000-ffffea00047fffff] PMD -> [ffff88011b400000-ffff88011f3fffff] on node 0 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000011fdfffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009cfff] [ 0.000000] node 0: [mem 0x0000000000100000-0x000000001fffffff] [ 0.000000] node 0: [mem 0x0000000020200000-0x000000003fffffff] [ 0.000000] node 0: [mem 0x0000000040200000-0x00000000d9c9efff] [ 0.000000] node 0: [mem 0x00000000dafff000-0x00000000daffffff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000011fdfffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000011fdfffff] [ 0.000000] On node 0 totalpages: 1021500 [ 0.000000] DMA zone: 64 pages used for memmap [ 0.000000] DMA zone: 156 pages reserved [ 0.000000] DMA zone: 3996 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 13859 pages used for memmap [ 0.000000] DMA32 zone: 886944 pages, LIFO batch:31 [ 0.000000] Normal zone: 2040 pages used for memmap [ 0.000000] Normal zone: 130560 pages, LIFO batch:31 [ 0.000000] Reserving Intel graphics stolen memory at 0xdba00000-0xdf9fffff [ 0.000000] ACPI: PM-Timer IO Port: 0x408 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 14, version 32, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a301 base: 0xfed00000 [ 0.000000] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009dfff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0x20000000-0x201fffff] [ 0.000000] PM: Registered nosave memory: [mem 0x40000000-0x401fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xd9c9f000-0xdae7efff] [ 0.000000] PM: Registered nosave memory: [mem 0xdae7f000-0xdaf9efff] [ 0.000000] PM: Registered nosave memory: [mem 0xdaf9f000-0xdaffefff] [ 0.000000] PM: Registered nosave memory: [mem 0xdb000000-0xdf9fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xdfa00000-0xf7ffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfebfffff] [ 0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff] [ 0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfed07fff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed08000-0xfed08fff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed09000-0xfed0ffff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed10000-0xfed19fff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed1a000-0xfed1bfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff] [ 0.000000] PM: Registered nosave memory: [mem 0xfed20000-0xfedfffff] [ 0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff] [ 0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xffd7ffff] [ 0.000000] PM: Registered nosave memory: [mem 0xffd80000-0xffffffff] [ 0.000000] e820: [mem 0xdfa00000-0xf7ffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on bare hardware [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:8 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 34 pages/cpu @ffff88011fa00000 s100680 r8192 d30392 u262144 [ 0.000000] pcpu-alloc: s100680 r8192 d30392 u262144 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 1005381 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.2.0-rc6-2-iniza-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 3918756K/4086000K available (8058K kernel code, 1369K rwdata, 3456K rodata, 1428K init, 14368K bss, 167244K reserved, 0K cma-reserved) [ 0.000000] Running RCU self tests [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU lockdep checking is enabled. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=8. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8 [ 0.000000] NR_IRQS:16640 nr_irqs:488 16 [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.000000] ... CHAINHASH_SIZE: 32768 [ 0.000000] memory used by lock dependency info: 8159 kB [ 0.000000] per task-struct memory footprint: 1920 bytes [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] tsc: Detected 1596.485 MHz processor [ 0.000077] Calibrating delay loop (skipped), value calculated using timer frequency.. 3192.97 BogoMIPS (lpj=6385940) [ 0.000090] pid_max: default: 32768 minimum: 301 [ 0.000115] ACPI: Core revision 20150619 [ 0.018898] ACPI: All ACPI Tables successfully acquired [ 0.019013] Security Framework initialized [ 0.019026] AppArmor: AppArmor initialized [ 0.019031] Yama: becoming mindful. [ 0.019972] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.021303] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.021783] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.021805] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.022992] Initializing cgroup subsys blkio [ 0.023028] Initializing cgroup subsys memory [ 0.023054] Initializing cgroup subsys devices [ 0.023088] Initializing cgroup subsys freezer [ 0.023121] Initializing cgroup subsys perf_event [ 0.023133] Initializing cgroup subsys hugetlb [ 0.023182] Disabled fast string operations [ 0.023189] CPU: Physical Processor ID: 0 [ 0.023194] CPU: Processor Core ID: 0 [ 0.023203] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.023209] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.023217] mce: CPU supports 7 MCE banks [ 0.023236] CPU0: Thermal monitoring enabled (TM1) [ 0.023258] process: using mwait in idle threads [ 0.023265] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.023272] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 [ 0.023502] Freeing SMP alternatives memory: 24K (ffffffff81ebd000 - ffffffff81ec3000) [ 0.038334] ftrace: allocating 29005 entries in 114 pages [ 0.054607] x2apic: IRQ remapping doesn't support X2APIC mode [ 0.055246] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.094918] TSC deadline timer enabled [ 0.094923] smpboot: CPU0: Intel(R) Core(TM) i5-2467M CPU @ 1.60GHz (fam: 06, model: 2a, stepping: 07) [ 0.094977] Performance Events: PEBS fmt1+, 16-deep LBR, SandyBridge events, full-width counters, Intel PMU driver. [ 0.095021] ... version: 3 [ 0.095026] ... bit width: 48 [ 0.095031] ... generic registers: 4 [ 0.095036] ... value mask: 0000ffffffffffff [ 0.095042] ... max period: 0000ffffffffffff [ 0.095047] ... fixed-purpose events: 3 [ 0.095052] ... event mask: 000000070000000f [ 0.097052] x86: Booting SMP configuration: [ 0.097060] .... node #0, CPUs: #1 [ 0.098096] Disabled fast string operations [ 0.100713] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. [ 0.101247] #2 [ 0.102275] Disabled fast string operations [ 0.104870] #3<6>[ 0.105904] Disabled fast string operations [ 0.108069] x86: Booted up 1 node, 4 CPUs [ 0.108083] smpboot: Total of 4 processors activated (12771.88 BogoMIPS) [ 0.113018] devtmpfs: initialized [ 0.118898] evm: security.selinux [ 0.118904] evm: security.SMACK64 [ 0.118909] evm: security.capability [ 0.119082] PM: Registering ACPI NVS region [mem 0xdae7f000-0xdaf9efff] (1179648 bytes) [ 0.119436] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.121024] NET: Registered protocol family 16 [ 0.132036] cpuidle: using governor ladder [ 0.143910] cpuidle: using governor menu [ 0.144125] ACPI: bus type PCI registered [ 0.144430] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000) [ 0.144442] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820 [ 0.144456] PCI: Using configuration type 1 for base access [ 0.145104] perf_event_intel: PMU erratum BJ122, BV98, HSD29 worked around, HT is on [ 0.161531] ACPI: Added _OSI(Module Device) [ 0.161539] ACPI: Added _OSI(Processor Device) [ 0.161545] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.161551] ACPI: Added _OSI(Processor Aggregator Device) [ 0.173680] ACPI: Executed 1 blocks of module-level executable AML code [ 0.182294] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored [ 0.184132] ACPI: Dynamic OEM Table Load: [ 0.184161] ACPI: SSDT 0xFFFF88011A4B7000 000688 (v01 PmRef Cpu0Cst 00003001 INTL 20061109) [ 0.186335] ACPI: Dynamic OEM Table Load: [ 0.186361] ACPI: SSDT 0xFFFF88011A4DC000 000303 (v01 PmRef ApIst 00003000 INTL 20061109) [ 0.188390] ACPI: Dynamic OEM Table Load: [ 0.188415] ACPI: SSDT 0xFFFF88011A4D2A00 000119 (v01 PmRef ApCst 00003000 INTL 20061109) [ 0.191740] ACPI : EC: EC started [ 0.193312] ACPI: Interpreter enabled [ 0.193336] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20150619/hwxface-580) [ 0.193397] ACPI: (supports S0 S1 S3 S4 S5) [ 0.193403] ACPI: Using IOAPIC for interrupt routing [ 0.193479] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.214622] ACPI: Power Resource [FN00] (off) [ 0.215071] ACPI: Power Resource [FN01] (off) [ 0.215401] ACPI: Power Resource [FN02] (off) [ 0.215728] ACPI: Power Resource [FN03] (off) [ 0.216085] ACPI: Power Resource [FN04] (off) [ 0.218415] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e]) [ 0.218428] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI] [ 0.219021] \_SB_.PCI0:_OSC invalid UUID [ 0.219024] _OSC request data:1 1f 0 [ 0.219030] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM [ 0.219932] PCI host bridge to bus 0000:00 [ 0.219940] pci_bus 0000:00: root bus resource [bus 00-3e] [ 0.219948] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 0.219956] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 0.219963] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 0.219973] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfeafffff window] [ 0.219982] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff window] [ 0.220053] pci 0000:00:00.0: [8086:0104] type 00 class 0x060000 [ 0.220444] pci 0000:00:02.0: [8086:0116] type 00 class 0x030000 [ 0.220472] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf03fffff 64bit] [ 0.220483] pci 0000:00:02.0: reg 0x18: [mem 0xe0000000-0xefffffff 64bit pref] [ 0.220491] pci 0000:00:02.0: reg 0x20: [io 0x3000-0x303f] [ 0.220933] pci 0000:00:16.0: [8086:1c3a] type 00 class 0x078000 [ 0.220994] pci 0000:00:16.0: reg 0x10: [mem 0xf0705000-0xf070500f 64bit] [ 0.221111] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold [ 0.221451] pci 0000:00:1a.0: [8086:1c2d] type 00 class 0x0c0320 [ 0.221506] pci 0000:00:1a.0: reg 0x10: [mem 0xf070a000-0xf070a3ff] [ 0.221641] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold [ 0.221947] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300 [ 0.222007] pci 0000:00:1b.0: reg 0x10: [mem 0xf0700000-0xf0703fff 64bit] [ 0.222141] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold [ 0.222320] pci 0000:00:1b.0: System wakeup disabled by ACPI [ 0.222487] pci 0000:00:1c.0: [8086:1c10] type 01 class 0x060400 [ 0.222636] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold [ 0.222793] pci 0000:00:1c.0: System wakeup disabled by ACPI [ 0.222962] pci 0000:00:1c.3: [8086:1c16] type 01 class 0x060400 [ 0.223110] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold [ 0.223266] pci 0000:00:1c.3: System wakeup disabled by ACPI [ 0.223426] pci 0000:00:1c.4: [8086:1c18] type 01 class 0x060400 [ 0.223578] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold [ 0.223889] pci 0000:00:1d.0: [8086:1c26] type 00 class 0x0c0320 [ 0.223943] pci 0000:00:1d.0: reg 0x10: [mem 0xf0709000-0xf07093ff] [ 0.224094] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold [ 0.224396] pci 0000:00:1f.0: [8086:1c49] type 00 class 0x060100 [ 0.224845] pci 0000:00:1f.2: [8086:1c03] type 00 class 0x010601 [ 0.224903] pci 0000:00:1f.2: reg 0x10: [io 0x3088-0x308f] [ 0.224920] pci 0000:00:1f.2: reg 0x14: [io 0x3094-0x3097] [ 0.224937] pci 0000:00:1f.2: reg 0x18: [io 0x3080-0x3087] [ 0.224954] pci 0000:00:1f.2: reg 0x1c: [io 0x3090-0x3093] [ 0.224970] pci 0000:00:1f.2: reg 0x20: [io 0x3060-0x307f] [ 0.224988] pci 0000:00:1f.2: reg 0x24: [mem 0xf0708000-0xf07087ff] [ 0.225054] pci 0000:00:1f.2: PME# supported from D3hot [ 0.225347] pci 0000:00:1f.3: [8086:1c22] type 00 class 0x0c0500 [ 0.225384] pci 0000:00:1f.3: reg 0x10: [mem 0xf0704000-0xf07040ff 64bit] [ 0.225431] pci 0000:00:1f.3: reg 0x20: [io 0xefa0-0xefbf] [ 0.226057] pci 0000:01:00.0: [8086:0091] type 00 class 0x028000 [ 0.226711] pci 0000:01:00.0: reg 0x10: [mem 0xf0600000-0xf0601fff 64bit] [ 0.228044] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold [ 0.228319] pci 0000:01:00.0: System wakeup disabled by ACPI [ 0.236347] pci 0000:00:1c.0: PCI bridge to [bus 01] [ 0.236363] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff] [ 0.236575] pci 0000:02:00.0: [10ec:8168] type 00 class 0x020000 [ 0.236772] pci 0000:02:00.0: reg 0x10: [io 0x2000-0x20ff] [ 0.236909] pci 0000:02:00.0: reg 0x18: [mem 0xf0404000-0xf0404fff 64bit pref] [ 0.236994] pci 0000:02:00.0: reg 0x20: [mem 0xf0400000-0xf0403fff 64bit pref] [ 0.237281] pci 0000:02:00.0: supports D1 D2 [ 0.237283] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold [ 0.237419] pci 0000:02:00.0: System wakeup disabled by ACPI [ 0.244227] pci 0000:00:1c.3: PCI bridge to [bus 02] [ 0.244239] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff] [ 0.244254] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref] [ 0.244439] pci 0000:03:00.0: [1b21:1042] type 00 class 0x0c0330 [ 0.244520] pci 0000:03:00.0: reg 0x10: [mem 0xf0500000-0xf0507fff 64bit] [ 0.244735] pci 0000:03:00.0: PME# supported from D3hot D3cold [ 0.245015] pci 0000:00:1c.4: PCI bridge to [bus 03] [ 0.245030] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff] [ 0.247084] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.247272] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.247450] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.247622] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.247793] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *9 [ 0.247966] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.248182] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.248356] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 10 11 12 14 15) *9 [ 0.249734] ACPI: Enabled 4 GPEs in block 00 to 3F [ 0.249880] ACPI : EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 [ 0.250230] ACPI : EC: 0 stale EC events cleared [ 0.251005] vgaarb: setting as boot device: PCI:0000:00:02.0 [ 0.251013] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none [ 0.251029] vgaarb: loaded [ 0.251034] vgaarb: bridge control possible 0000:00:02.0 [ 0.251741] SCSI subsystem initialized [ 0.251914] libata version 3.00 loaded. [ 0.252008] ACPI: bus type USB registered [ 0.252083] usbcore: registered new interface driver usbfs [ 0.252129] usbcore: registered new interface driver hub [ 0.252225] usbcore: registered new device driver usb [ 0.252690] PCI: Using ACPI for IRQ routing [ 0.256379] PCI: pci_cache_line_size set to 64 bytes [ 0.256509] e820: reserve RAM buffer [mem 0x0009d800-0x0009ffff] [ 0.256518] e820: reserve RAM buffer [mem 0xd9c9f000-0xdbffffff] [ 0.256521] e820: reserve RAM buffer [mem 0xdb000000-0xdbffffff] [ 0.256524] e820: reserve RAM buffer [mem 0x11fe00000-0x11fffffff] [ 0.257314] NetLabel: Initializing [ 0.257321] NetLabel: domain hash size = 128 [ 0.257326] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.257386] NetLabel: unlabeled traffic allowed by default [ 0.257620] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0 [ 0.257634] hpet0: 8 comparators, 64-bit 14.318180 MHz counter [ 0.259727] clocksource: Switched to clocksource hpet [ 0.300737] AppArmor: AppArmor Filesystem Enabled [ 0.301008] pnp: PnP ACPI init [ 0.301708] system 00:00: [io 0x0680-0x069f] has been reserved [ 0.301722] system 00:00: [io 0x1000-0x100f] has been reserved [ 0.301731] system 00:00: [io 0x5000-0x5003] has been reserved [ 0.301739] system 00:00: [io 0xffff] has been reserved [ 0.301748] system 00:00: [io 0x0400-0x0453] could not be reserved [ 0.301756] system 00:00: [io 0x0458-0x047f] has been reserved [ 0.301763] system 00:00: [io 0x0500-0x057f] has been reserved [ 0.301774] system 00:00: [io 0x0a00-0x0a0f] has been reserved [ 0.301782] system 00:00: [io 0x164e-0x164f] has been reserved [ 0.301790] system 00:00: [io 0x5000-0x500f] could not be reserved [ 0.301832] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.301924] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.302080] system 00:02: [io 0x0454-0x0457] has been reserved [ 0.302093] system 00:02: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active) [ 0.302186] pnp 00:03: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.302311] pnp 00:04: Plug and Play ACPI device, IDs ETD0b00 SYN0002 PNP0f13 (active) [ 0.302735] system 00:05: [mem 0xfed1c000-0xfed1ffff] has been reserved [ 0.302744] system 00:05: [mem 0xfed10000-0xfed17fff] has been reserved [ 0.302752] system 00:05: [mem 0xfed18000-0xfed18fff] has been reserved [ 0.302760] system 00:05: [mem 0xfed19000-0xfed19fff] has been reserved [ 0.302768] system 00:05: [mem 0xf8000000-0xfbffffff] has been reserved [ 0.302776] system 00:05: [mem 0xfed20000-0xfed3ffff] has been reserved [ 0.302784] system 00:05: [mem 0xfed90000-0xfed93fff] has been reserved [ 0.302792] system 00:05: [mem 0xfed45000-0xfed8ffff] has been reserved [ 0.302801] system 00:05: [mem 0xff000000-0xffffffff] could not be reserved [ 0.302809] system 00:05: [mem 0xfee00000-0xfeefffff] could not be reserved [ 0.302820] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.303781] system 00:06: Plug and Play ACPI device, IDs PNP0c01 (active) [ 0.303837] pnp: PnP ACPI: found 7 devices [ 0.315054] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 0.315118] pci 0000:00:1c.0: PCI bridge to [bus 01] [ 0.315133] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff] [ 0.315153] pci 0000:00:1c.3: PCI bridge to [bus 02] [ 0.315162] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff] [ 0.315179] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref] [ 0.315197] pci 0000:00:1c.4: PCI bridge to [bus 03] [ 0.315210] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff] [ 0.315231] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 0.315234] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 0.315236] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 0.315238] pci_bus 0000:00: resource 7 [mem 0xdfa00000-0xfeafffff window] [ 0.315240] pci_bus 0000:00: resource 8 [mem 0xfed40000-0xfed44fff window] [ 0.315242] pci_bus 0000:01: resource 1 [mem 0xf0600000-0xf06fffff] [ 0.315245] pci_bus 0000:02: resource 0 [io 0x2000-0x2fff] [ 0.315247] pci_bus 0000:02: resource 2 [mem 0xf0400000-0xf04fffff 64bit pref] [ 0.315249] pci_bus 0000:03: resource 1 [mem 0xf0500000-0xf05fffff] [ 0.315388] NET: Registered protocol family 2 [ 0.316009] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.316491] TCP bind hash table entries: 32768 (order: 9, 2097152 bytes) [ 0.318744] TCP: Hash tables configured (established 32768 bind 32768) [ 0.318900] UDP hash table entries: 2048 (order: 6, 327680 bytes) [ 0.319264] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes) [ 0.319890] NET: Registered protocol family 1 [ 0.319922] pci 0000:00:02.0: Video device with shadowed ROM [ 0.321570] PCI: CLS 64 bytes, default 64 [ 0.321853] Trying to unpack rootfs image as initramfs... [ 0.406848] Freeing initrd memory: 3568K (ffff8800378f8000 - ffff880037c74000) [ 0.406869] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 0.406877] software IO TLB [mem 0xd5c9f000-0xd9c9f000] (64MB) mapped at [ffff8800d5c9f000-ffff8800d9c9efff] [ 0.407067] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.407077] hw unit of domain pp0-core 2^-16 Joules [ 0.407082] hw unit of domain package 2^-16 Joules [ 0.407088] hw unit of domain pp1-gpu 2^-16 Joules [ 0.407361] microcode: CPU0 sig=0x206a7, pf=0x10, revision=0x28 [ 0.407398] microcode: CPU1 sig=0x206a7, pf=0x10, revision=0x28 [ 0.407430] microcode: CPU2 sig=0x206a7, pf=0x10, revision=0x28 [ 0.407454] microcode: CPU3 sig=0x206a7, pf=0x10, revision=0x28 [ 0.407737] microcode: Microcode Update Driver: v2.00 , Peter Oruba [ 0.407819] Scanning for low memory corruption every 60 seconds [ 0.409192] futex hash table entries: 2048 (order: 6, 262144 bytes) [ 0.409359] Initialise system trusted keyring [ 0.409511] audit: initializing netlink subsys (disabled) [ 0.409603] audit: type=2000 audit(1439505184.392:1): initialized [ 0.410697] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.411249] VFS: Disk quotas dquot_6.6.0 [ 0.411450] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.412392] fuse init (API version 7.23) [ 0.414662] Key type asymmetric registered [ 0.414690] Asymmetric key parser 'x509' registered [ 0.414746] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) [ 0.414916] io scheduler noop registered [ 0.414927] io scheduler deadline registered (default) [ 0.414974] io scheduler cfq registered [ 0.414983] start plist test [ 0.417922] end plist test [ 0.419023] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.419051] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.419274] intel_idle: MWAIT substates: 0x21120 [ 0.419276] intel_idle: v0.4 model 0x2A [ 0.419277] intel_idle: lapic_timer_reliable_states 0xffffffff [ 0.420727] ACPI: AC Adapter [ADP1] (on-line) [ 0.420985] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0 [ 0.421039] ACPI: Lid Switch [LID0] [ 0.421189] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1 [ 0.421245] ACPI: Power Button [PWRB] [ 0.421392] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 [ 0.421405] ACPI: Power Button [PWRF] [ 0.425213] thermal LNXTHERM:00: registered as thermal_zone0 [ 0.425221] ACPI: Thermal Zone [TZ00] (76 C) [ 0.426031] thermal LNXTHERM:01: registered as thermal_zone1 [ 0.426039] ACPI: Thermal Zone [TZ01] (30 C) [ 0.426180] GHES: HEST is not enabled! [ 0.426660] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.436125] ACPI: Battery Slot [BAT1] (battery present) [ 0.437302] Linux agpgart interface v0.103 [ 0.446325] brd: module loaded [ 0.450706] loop: module loaded [ 0.456220] ahci 0000:00:1f.2: version 3.0 [ 0.456607] ahci 0000:00:1f.2: SSS flag set, parallel bus scan disabled [ 0.471768] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x1b impl SATA mode [ 0.471782] ahci 0000:00:1f.2: flags: 64bit ncq sntf ilck stag pm led clo pio slum part ems sxs apst [ 0.498236] scsi host0: ahci [ 0.498939] scsi host1: ahci [ 0.499476] scsi host2: ahci [ 0.500090] scsi host3: ahci [ 0.500666] scsi host4: ahci [ 0.501192] scsi host5: ahci [ 0.501399] ata1: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708100 irq 25 [ 0.501411] ata2: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708180 irq 25 [ 0.501420] ata3: DUMMY [ 0.501426] ata4: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708280 irq 25 [ 0.501436] ata5: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708300 irq 25 [ 0.501445] ata6: DUMMY [ 0.503072] libphy: Fixed MDIO Bus: probed [ 0.503475] tun: Universal TUN/TAP device driver, 1.6 [ 0.503481] tun: (C) 1999-2004 Max Krasnyansky [ 0.503753] PPP generic driver version 2.4.2 [ 0.504183] xhci_hcd 0000:03:00.0: xHCI Host Controller [ 0.504403] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 1 [ 0.508955] xhci_hcd 0000:03:00.0: hcc params 0x0200f180 hci version 0x96 quirks 0x00080000 [ 0.509775] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 0.509783] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.509792] usb usb1: Product: xHCI Host Controller [ 0.509798] usb usb1: Manufacturer: Linux 4.2.0-rc6-2-iniza-small xhci-hcd [ 0.509805] usb usb1: SerialNumber: 0000:03:00.0 [ 0.510741] hub 1-0:1.0: USB hub found [ 0.510832] hub 1-0:1.0: 2 ports detected [ 0.511934] xhci_hcd 0000:03:00.0: xHCI Host Controller [ 0.511952] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 2 [ 0.512078] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 0.512205] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 0.512212] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.512221] usb usb2: Product: xHCI Host Controller [ 0.512227] usb usb2: Manufacturer: Linux 4.2.0-rc6-2-iniza-small xhci-hcd [ 0.512234] usb usb2: SerialNumber: 0000:03:00.0 [ 0.512893] hub 2-0:1.0: USB hub found [ 0.512966] hub 2-0:1.0: 2 ports detected [ 0.513559] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.513570] ehci-pci: EHCI PCI platform driver [ 0.513929] ehci-pci 0000:00:1a.0: EHCI Host Controller [ 0.513958] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3 [ 0.513987] ehci-pci 0000:00:1a.0: debug port 2 [ 0.517938] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported [ 0.517976] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf070a000 [ 0.527638] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00 [ 0.527839] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002 [ 0.527848] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.527857] usb usb3: Product: EHCI Host Controller [ 0.527863] usb usb3: Manufacturer: Linux 4.2.0-rc6-2-iniza-small ehci_hcd [ 0.527870] usb usb3: SerialNumber: 0000:00:1a.0 [ 0.528435] hub 3-0:1.0: USB hub found [ 0.528471] hub 3-0:1.0: 2 ports detected [ 0.529311] ehci-pci 0000:00:1d.0: EHCI Host Controller [ 0.529334] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 4 [ 0.529366] ehci-pci 0000:00:1d.0: debug port 2 [ 0.533278] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported [ 0.533310] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf0709000 [ 0.543564] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00 [ 0.543740] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002 [ 0.543748] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.543758] usb usb4: Product: EHCI Host Controller [ 0.543764] usb usb4: Manufacturer: Linux 4.2.0-rc6-2-iniza-small ehci_hcd [ 0.543771] usb usb4: SerialNumber: 0000:00:1d.0 [ 0.544265] hub 4-0:1.0: USB hub found [ 0.544298] hub 4-0:1.0: 2 ports detected [ 0.544776] ehci-platform: EHCI generic platform driver [ 0.544813] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.544834] ohci-pci: OHCI PCI platform driver [ 0.544874] ohci-platform: OHCI generic platform driver [ 0.544906] uhci_hcd: USB Universal Host Controller Interface driver [ 0.545052] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:EPAD] at 0x60,0x64 irq 1,12 [ 0.551223] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.551288] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.552162] mousedev: PS/2 mouse device common for all mice [ 0.553538] rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0 [ 0.553582] rtc_cmos 00:01: alarms up to one month, y3k, 242 bytes nvram, hpet irqs [ 0.553671] device-mapper: uevent: version 1.0.3 [ 0.554031] device-mapper: ioctl: 4.32.0-ioctl (2015-6-26) initialised: dm-devel@redhat.com [ 0.554070] Intel P-state driver initializing. [ 0.556146] ledtrig-cpu: registered to indicate activity on CPUs [ 0.556998] NET: Registered protocol family 10 [ 0.559263] NET: Registered protocol family 17 [ 0.559362] Key type dns_resolver registered [ 0.560801] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3 [ 0.562405] Loading compiled-in X.509 certificates [ 0.563786] Loaded X.509 cert 'Build time autogenerated kernel key: aa05e7a913cf77e99e75a89bb39b3f70ed61975b' [ 0.563841] registered taskstats version 1 [ 0.571383] Key type trusted registered [ 0.582385] Key type encrypted registered [ 0.582404] AppArmor: AppArmor sha1 policy hashing enabled [ 0.582413] evm: HMAC attrs: 0x1 [ 0.583297] rtc_cmos 00:01: setting system clock to 2015-08-13 22:33:05 UTC (1439505185) [ 0.583450] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 0.583457] EDD information not available. [ 0.823506] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 0.824817] ata1.00: ATA-8: Hitachi HTS545050A7E380, GG2OA6C0, max UDMA/133 [ 0.824841] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA [ 0.826230] ata1.00: configured for UDMA/133 [ 0.827242] scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54505 A6C0 PQ: 0 ANSI: 5 [ 0.828411] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB) [ 0.828424] sd 0:0:0:0: [sda] 4096-byte physical blocks [ 0.828732] sd 0:0:0:0: [sda] Write Protect is off [ 0.828742] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 0.828847] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 0.828862] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 0.839336] usb 3-1: new high-speed USB device number 2 using ehci-pci [ 0.855415] usb 4-1: new high-speed USB device number 2 using ehci-pci [ 0.867560] sda: sda1 sda2 sda3 [ 0.868902] sd 0:0:0:0: [sda] Attached SCSI disk [ 0.972208] usb 3-1: New USB device found, idVendor=8087, idProduct=0024 [ 0.972218] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 0.972962] hub 3-1:1.0: USB hub found [ 0.973167] hub 3-1:1.0: 6 ports detected [ 0.988061] usb 4-1: New USB device found, idVendor=8087, idProduct=0024 [ 0.988088] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 0.988827] hub 4-1:1.0: USB hub found [ 0.989050] hub 4-1:1.0: 6 ports detected [ 1.147279] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 1.148183] ata2.00: ATA-8: SanDisk iSSD P4 16GB, SSD 9.14, max UDMA/133 [ 1.148207] ata2.00: 31277232 sectors, multi 1: LBA48 [ 1.148946] ata2.00: configured for UDMA/133 [ 1.149304] scsi 1:0:0:0: Direct-Access ATA SanDisk iSSD P4 9.14 PQ: 0 ANSI: 5 [ 1.150156] sd 1:0:0:0: [sdb] 31277232 512-byte logical blocks: (16.0 GB/14.9 GiB) [ 1.150245] sd 1:0:0:0: Attached scsi generic sg1 type 0 [ 1.150641] sd 1:0:0:0: [sdb] Write Protect is off [ 1.150650] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 [ 1.150817] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.152477] sdb: sdb1 sdb2 [ 1.153640] sd 1:0:0:0: [sdb] Attached SCSI disk [ 1.247137] usb 3-1.4: new high-speed USB device number 3 using ehci-pci [ 1.263143] usb 4-1.4: new low-speed USB device number 3 using ehci-pci [ 1.361714] usb 4-1.4: New USB device found, idVendor=046d, idProduct=c00e [ 1.361737] usb 4-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1.361746] usb 4-1.4: Product: USB-PS/2 Optical Mouse [ 1.361751] usb 4-1.4: Manufacturer: Logitech [ 1.403190] tsc: Refined TSC clocksource calibration: 1596.374 MHz [ 1.403203] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1702c3a922f, max_idle_ns: 440795242034 ns [ 1.435060] usb 4-1.5: new full-speed USB device number 4 using ehci-pci [ 1.467041] ata4: SATA link down (SStatus 0 SControl 300) [ 1.499265] usb 3-1.4: New USB device found, idVendor=2232, idProduct=1018 [ 1.499276] usb 3-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1.499286] usb 3-1.4: Product: WebCam SC-13HDL11431N [ 1.499292] usb 3-1.4: Manufacturer: 123 [ 1.532488] usb 4-1.5: New USB device found, idVendor=8086, idProduct=0189 [ 1.532498] usb 4-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1.786825] ata5: SATA link down (SStatus 0 SControl 300) [ 1.787747] Freeing unused kernel memory: 1428K (ffffffff81d58000 - ffffffff81ebd000) [ 1.787760] Write protecting the kernel read-only data: 12288k [ 1.788315] Freeing unused kernel memory: 124K (ffff8800017e1000 - ffff880001800000) [ 1.788746] Freeing unused kernel memory: 640K (ffff880001b60000 - ffff880001c00000) [ 1.828813] udevd[141]: starting version 175 [ 2.108760] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded [ 2.108794] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control [ 2.110824] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xffffc900009ae000, e8:03:9a:36:17:a9, XID 0c900800 IRQ 31 [ 2.110848] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko] [ 2.161236] usbcore: registered new interface driver usbhid [ 2.161246] usbhid: USB HID core driver [ 2.245431] input: Logitech USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/4-1.4:1.0/0003:046D:C00E.0001/input/input5 [ 2.246016] hid-generic 0003:046D:C00E.0001: input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:1d.0-1.4/input0 [ 2.402692] clocksource: Switched to clocksource tsc [ 2.941805] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null) [ 3.654976] random: nonblocking pool is initialized [ 4.045073] usb 3-1.2: new high-speed USB device number 4 using ehci-pci [ 4.140728] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1446 [ 4.140742] usb 3-1.2: New USB device strings: Mfr=3, Product=2, SerialNumber=0 [ 4.140752] usb 3-1.2: Product: HUAWEI Mobile [ 4.140758] usb 3-1.2: Manufacturer: HUAWEI Technology [ 5.302972] init: ureadahead main process (435) terminated with status 5 [ 9.824619] Adding 262140k swap on /host/ubuntu/disks/swap.disk. Priority:-1 extents:1 across:262140k FS [ 10.087635] EXT4-fs (loop0): re-mounted. Opts: errors=remount-ro [ 10.280573] udevd[669]: starting version 175 [ 11.620071] lp: driver loaded but no devices found [ 13.610068] wmi: Mapper loaded [ 13.662624] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20150619/utaddress-254) [ 13.662639] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 13.662647] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-254) [ 13.662656] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 13.662660] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-254) [ 13.662667] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 13.662671] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-254) [ 13.662679] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 13.662681] lpc_ich: Resource conflict(s) found affecting gpio_ich [ 13.950746] samsung_laptop: detected SABI interface: SwSmi@ [ 13.990525] [drm] Initialized drm 1.1.0 20060810 [ 15.078862] usb-storage 3-1.2:1.0: USB Mass Storage device detected [ 15.079238] scsi host6: usb-storage 3-1.2:1.0 [ 15.079656] usb-storage 3-1.2:1.1: USB Mass Storage device detected [ 15.079846] scsi host7: usb-storage 3-1.2:1.1 [ 15.080114] usbcore: registered new interface driver usb-storage [ 15.381557] Bluetooth: Core ver 2.20 [ 15.381609] NET: Registered protocol family 31 [ 15.381613] Bluetooth: HCI device and connection manager initialized [ 15.381717] Bluetooth: HCI socket layer initialized [ 15.381726] Bluetooth: L2CAP socket layer initialized [ 15.381901] Bluetooth: SCO socket layer initialized [ 15.754242] usbcore: registered new interface driver btusb [ 15.806581] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x450f00) [ 15.821801] psmouse serio1: elantech: Synaptics capabilities query result 0x08, 0x17, 0x0c. [ 15.836745] psmouse serio1: elantech: Elan sample query result 03, 3f, 86 [ 15.838829] Linux video capture interface: v2.00 [ 15.919598] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input6 [ 16.079340] scsi 7:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2 [ 16.079399] scsi 6:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 16.083575] sr 6:0:0:0: [sr0] scsi-1 drive [ 16.083579] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 16.085230] sr 6:0:0:0: Attached scsi CD-ROM sr0 [ 16.086185] sr 6:0:0:0: Attached scsi generic sg2 type 5 [ 16.093589] sd 7:0:0:0: Attached scsi generic sg3 type 0 [ 16.100169] sd 7:0:0:0: [sdc] Attached SCSI removable disk [ 16.648684] cfg80211: World regulatory domain updated: [ 16.648690] cfg80211: DFS Master region: unset [ 16.648692] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) [ 16.648696] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 16.648698] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A) [ 16.648700] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A) [ 16.648702] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 16.648704] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 16.697598] Intel(R) Wireless WiFi driver for Linux [ 16.697603] Copyright(c) 2003- 2015 Intel Corporation [ 16.697942] iwlwifi 0000:01:00.0: can't disable ASPM; OS doesn't have ASPM control [ 16.744761] audit: type=1400 audit(1439498001.669:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=967 comm="apparmor_parser" [ 16.744772] audit: type=1400 audit(1439498001.669:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=967 comm="apparmor_parser" [ 16.744779] audit: type=1400 audit(1439498001.669:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=967 comm="apparmor_parser" [ 16.745003] audit: type=1400 audit(1439498001.669:5): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1032 comm="apparmor_parser" [ 16.745014] audit: type=1400 audit(1439498001.669:6): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1032 comm="apparmor_parser" [ 16.745021] audit: type=1400 audit(1439498001.669:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1032 comm="apparmor_parser" [ 16.745560] audit: type=1400 audit(1439498001.669:8): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=967 comm="apparmor_parser" [ 16.745568] audit: type=1400 audit(1439498001.669:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=967 comm="apparmor_parser" [ 16.745677] audit: type=1400 audit(1439498001.669:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1032 comm="apparmor_parser" [ 16.745684] audit: type=1400 audit(1439498001.669:11): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1032 comm="apparmor_parser" [ 17.262091] iwlwifi 0000:01:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm [ 17.291245] [drm] Memory usable by graphics device = 2048M [ 17.291318] [drm] Replacing VGA console driver [ 17.299940] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 17.299943] [drm] Driver supports precise vblank timestamp query. [ 17.300750] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 17.319302] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 17.320232] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input7 [ 17.321882] [drm] Initialized i915 1.6.0 20150522 for 0000:00:02.0 on minor 0 [ 17.329889] fbcon: inteldrmfb (fb0) is primary device [ 17.571563] ppdev: user-space parallel port driver [ 18.317674] Console: switching to colour frame buffer device 170x48 [ 18.321286] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 18.321288] i915 0000:00:02.0: registered panic notifier [ 18.357452] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 18.357458] Bluetooth: BNEP filters: protocol multicast [ 18.357470] Bluetooth: BNEP socket layer initialized [ 18.489083] init: failsafe main process (1073) killed by TERM signal [ 18.680698] Bluetooth: RFCOMM TTY layer initialized [ 18.680713] Bluetooth: RFCOMM socket layer initialized [ 18.680730] Bluetooth: RFCOMM ver 1.11 [ 18.829371] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUG disabled [ 18.829379] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUGFS enabled [ 18.829383] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled [ 18.829389] iwlwifi 0000:01:00.0: Detected Intel(R) Centrino(R) Advanced-N 6230 AGN, REV=0xB0 [ 18.829938] iwlwifi 0000:01:00.0: L1 Enabled - LTR Disabled [ 18.938233] usb 3-1.2: USB disconnect, device number 4 [ 18.965570] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 19.273737] uvcvideo: Found UVC 1.00 device WebCam SC-13HDL11431N (2232:1018) [ 19.293461] input: WebCam SC-13HDL11431N as /devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.4/3-1.4:1.0/input/input8 [ 19.293930] usbcore: registered new interface driver uvcvideo [ 19.293933] USB Video Class driver (1.1.1) [ 20.125971] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC269VC: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 20.125976] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 20.125978] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0) [ 20.125981] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 20.125982] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 20.125986] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x19 [ 20.125989] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18 [ 20.285991] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9 [ 20.286865] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10 [ 20.287129] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11 [ 22.175709] audit_printk_skb: 63 callbacks suppressed [ 22.175713] audit: type=1400 audit(1439498007.101:33): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=1306 comm="apparmor_parser" [ 22.175721] audit: type=1400 audit(1439498007.101:34): apparmor="STATUS" operation="profile_load" name="launchpad_integration" pid=1306 comm="apparmor_parser" [ 22.175727] audit: type=1400 audit(1439498007.101:35): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1306 comm="apparmor_parser" [ 22.175732] audit: type=1400 audit(1439498007.101:36): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-previewer" pid=1306 comm="apparmor_parser" [ 22.175737] audit: type=1400 audit(1439498007.101:37): apparmor="STATUS" operation="profile_load" name="launchpad_integration" pid=1306 comm="apparmor_parser" [ 22.175742] audit: type=1400 audit(1439498007.101:38): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1306 comm="apparmor_parser" [ 22.175747] audit: type=1400 audit(1439498007.101:39): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-thumbnailer" pid=1306 comm="apparmor_parser" [ 22.175752] audit: type=1400 audit(1439498007.101:40): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1306 comm="apparmor_parser" [ 22.184758] audit: type=1400 audit(1439498007.113:41): apparmor="STATUS" operation="profile_replace" name="launchpad_integration" pid=1306 comm="apparmor_parser" [ 22.184768] audit: type=1400 audit(1439498007.113:42): apparmor="STATUS" operation="profile_replace" name="sanitized_helper" pid=1306 comm="apparmor_parser" [ 22.971680] usb 3-1.2: new high-speed USB device number 5 using ehci-pci [ 23.066173] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1436 [ 23.066180] usb 3-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0 [ 23.066184] usb 3-1.2: Product: HUAWEI Mobile [ 23.066188] usb 3-1.2: Manufacturer: HUAWEI Technology [ 23.069456] usb-storage 3-1.2:1.0: USB Mass Storage device detected [ 23.070661] usb-storage 3-1.2:1.1: USB Mass Storage device detected [ 23.071246] usb-storage 3-1.2:1.2: USB Mass Storage device detected [ 23.071950] usb-storage 3-1.2:1.3: USB Mass Storage device detected [ 23.072585] usb-storage 3-1.2:1.4: USB Mass Storage device detected [ 23.073212] usb-storage 3-1.2:1.5: USB Mass Storage device detected [ 23.073714] scsi host13: usb-storage 3-1.2:1.5 [ 23.074586] usb-storage 3-1.2:1.6: USB Mass Storage device detected [ 23.075086] scsi host14: usb-storage 3-1.2:1.6 [ 23.208176] cdc_ether 3-1.2:1.1 wwan0: register 'cdc_ether' at usb-0000:00:1a.0-1.2, Mobile Broadband Network Device, 02:50:f3:00:00:00 [ 23.208595] usbcore: registered new interface driver cdc_ether [ 23.326691] usbcore: registered new interface driver usbserial [ 23.568638] usbcore: registered new interface driver option [ 23.569201] usbserial: USB Serial support registered for GSM modem (1-port) [ 23.570021] option 3-1.2:1.0: GSM modem (1-port) converter detected [ 23.571889] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB0 [ 23.573913] option 3-1.2:1.3: GSM modem (1-port) converter detected [ 23.575380] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB1 [ 23.575444] option 3-1.2:1.4: GSM modem (1-port) converter detected [ 23.575784] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB2 [ 24.073403] scsi 14:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2 [ 24.073490] scsi 13:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 24.075245] sd 14:0:0:0: Attached scsi generic sg2 type 0 [ 24.078712] sr 13:0:0:0: [sr0] scsi-1 drive [ 24.083764] sr 13:0:0:0: Attached scsi CD-ROM sr0 [ 24.085194] sr 13:0:0:0: Attached scsi generic sg3 type 5 [ 24.086368] sd 14:0:0:0: [sdc] Attached SCSI removable disk [ 24.808458] r8169 0000:02:00.0 eth0: link down [ 24.808662] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 64.614313] PPP BSD Compression module registered [ 64.619412] PPP Deflate Compression module registered [ 66.536082] usb 4-1.5: USB disconnect, device number 4 Hans de Goede (1): ACPI / video: Fix circular lock dependency issue in the video-detect code drivers/acpi/video_detect.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 815f75ef2411..2922f1f252d5 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -32,6 +32,7 @@ #include #include #include +#include #include ACPI_MODULE_NAME("video"); @@ -41,6 +42,7 @@ void acpi_video_unregister_backlight(void); static bool backlight_notifier_registered; static struct notifier_block backlight_nb; +static struct work_struct backlight_notify_work; static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef; static enum acpi_backlight_type acpi_backlight_dmi = acpi_backlight_undef; @@ -262,6 +264,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = { { }, }; +/* This uses a workqueue to avoid various locking ordering issues */ +static void acpi_video_backlight_notify_work(struct work_struct *work) +{ + if (acpi_video_get_backlight_type() != acpi_backlight_video) + acpi_video_unregister_backlight(); +} + static int acpi_video_backlight_notify(struct notifier_block *nb, unsigned long val, void *bd) { @@ -269,9 +278,8 @@ static int acpi_video_backlight_notify(struct notifier_block *nb, /* A raw bl registering may change video -> native */ if (backlight->props.type == BACKLIGHT_RAW && - val == BACKLIGHT_REGISTERED && - acpi_video_get_backlight_type() != acpi_backlight_video) - acpi_video_unregister_backlight(); + val == BACKLIGHT_REGISTERED) + schedule_work(&backlight_notify_work); return NOTIFY_OK; } @@ -304,6 +312,8 @@ enum acpi_backlight_type acpi_video_get_backlight_type(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, find_video, NULL, &video_caps, NULL); + INIT_WORK(&backlight_notify_work, + acpi_video_backlight_notify_work); backlight_nb.notifier_call = acpi_video_backlight_notify; backlight_nb.priority = 0; if (backlight_register_notifier(&backlight_nb) == 0)