From patchwork Tue Apr 10 20:56:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ladislav Michl X-Patchwork-Id: 10333841 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EE84160365 for ; Tue, 10 Apr 2018 20:56:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D6E3B283F5 for ; Tue, 10 Apr 2018 20:56:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C9E1E28417; Tue, 10 Apr 2018 20:56:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9BDC5283F5 for ; Tue, 10 Apr 2018 20:56:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751919AbeDJU4t (ORCPT ); Tue, 10 Apr 2018 16:56:49 -0400 Received: from eddie.linux-mips.org ([148.251.95.138]:48030 "EHLO cvs.linux-mips.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751546AbeDJU4q (ORCPT ); Tue, 10 Apr 2018 16:56:46 -0400 Received: (from localhost user: 'ladis' uid#1021 fake: STDIN (ladis@eddie.linux-mips.org)) by eddie.linux-mips.org id S23994627AbeDJU4ok30CG (ORCPT + 1 other); Tue, 10 Apr 2018 22:56:44 +0200 Date: Tue, 10 Apr 2018 22:56:43 +0200 From: Ladislav Michl To: "H. Nikolaus Schaller" Cc: Boris Brezillon , Peter Ujfalusi , Tony Lindgren , Aaro Koskinen , Roger Quadros , Linux Kernel Mailing List , linux-omap , Discussions about the Letux Kernel Subject: Re: [Bug]: mtd: onenand: omap2plus: kernel panic with OneNAND on OMAP3 (DM3730) device GTA04A5 Message-ID: <20180410205643.GA2228@lenoch> References: <5D496D5C-4E3E-47B4-9981-E8F4C348DE00@goldelico.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <5D496D5C-4E3E-47B4-9981-E8F4C348DE00@goldelico.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi Nikolaus, On Tue, Apr 10, 2018 at 06:25:17PM +0200, H. Nikolaus Schaller wrote: > Hi, > we just started testing the v4.16 kernel and found the > device no longer bootable (works with v4.15). It turned > out that there was a harmful modification somewhere between > v4.15.0 and v4.16-rc1. > > A git bisect points to this patch: Well, that's a shame... However, this code is in production for several months now, so could you, please put 'goto out_copy' if 'buf >= high_memory' condition is met, ie: and in case it does not help put the same goto at the very beginning of omap2_onenand_read_bufferram function and report result? Thank you for cooperation, ladis > commit bdaca9345d41fd9420995469d27603ea62054691 > Author: Ladislav Michl > Date: Fri Jan 12 14:16:57 2018 +0100 > > mtd: onenand: omap2: Decouple DMA enabling from INT pin availability > > INT pin (gpio_irq) is not really needed for DMA but only for notification > when a command that needs wait has completed. DMA memcpy can be still used > even without gpio_irq available, so enable it unconditionally. > > Signed-off-by: Ladislav Michl > Reviewed-by: Peter Ujfalusi > Tested-by: Tony Lindgren > Tested-by: Aaro Koskinen > Acked-by: Roger Quadros > Signed-off-by: Boris Brezillon > > Kernel panic log is attached which indeed indicates a DMA problem. > > Note that we have added compatible = "ti,omap2-onenand"; > > Any suggestions, fixes? > > BR and thanks, > Nikolaus Schaller > > > > ## Booting kernel from Legacy Image at 82000000 ... > Image Name: Linux-4.16.0-letux+ > Image Type: ARM Linux Kernel Image (uncompressed) > Data Size: 4456744 Bytes = 4.3 MiB > Load Address: 80008000 > Entry Point: 80008000 > Verifying Checksum ... OK > ## Flattened Device Tree blob at 81c00000 > Booting using the fdt blob at 0x81c00000 > Loading Kernel Image ... OK > Using Device Tree in place at 81c00000, end 81c14a1e > > Starting kernel ... > > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Linux version 4.16.0-letux+ (hns@iMac.local) (gcc version 4.9.2 (GCC)) #2187 SMP PREEMPT Tue Apr 10 16:23:45 CEST 2018 > [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache > [ 0.000000] OF: fdt: Machine model: Goldelico GTA04A5/Letux 2804 > [ 0.000000] debug: ignoring loglevel setting. > [ 0.000000] Memory policy: Data cache writeback > [ 0.000000] cma: Reserved 16 MiB at 0xbe800000 > [ 0.000000] On node 0 totalpages: 261632 > [ 0.000000] Normal zone: 1536 pages used for memmap > [ 0.000000] Normal zone: 0 pages reserved > [ 0.000000] Normal zone: 196608 pages, LIFO batch:31 > [ 0.000000] HighMem zone: 65024 pages, LIFO batch:15 > [ 0.000000] CPU: All CPU(s) started in SVC mode. > [ 0.000000] OMAP3630/DM3730 ES1.2 (l2cache iva sgx neon isp 192mhz_clk) > [ 0.000000] random: fast init done > [ 0.000000] percpu: Embedded 17 pages/cpu @(ptrval) s39744 r8192 d21696 u69632 > [ 0.000000] pcpu-alloc: s39744 r8192 d21696 u69632 alloc=17*4096 > [ 0.000000] pcpu-alloc: [0] 0 > [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 260096 > [ 0.000000] Kernel command line: console=ttyO2,115200n8 mtdoops.mtddev=omap2.nand ubi.mtd=4 root=/dev/mmcblk0p1 rw rootfstype=ext4,ext3 rootwait console=ttyO2,115200n8 vram=12M omapfb.vram=0:8M,1:4M omapfb.rotate_type=0 omapdss.def_disp=lcd rootwait twl4030_charger.allow_usb=1 log_buf_len=8M ignore_loglevel earlyprintk > [ 0.000000] log_buf_len: 8388608 bytes > [ 0.000000] early log buf free: 63924(97%) > [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) > [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) > [ 0.000000] Memory: 1002524K/1046528K available (6169K kernel code, 626K rwdata, 1660K rodata, 1024K init, 218K bss, 27620K reserved, 16384K cma-reserved, 243712K highmem) > [ 0.000000] Virtual kernel memory layout: > [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) > [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) > [ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB) > [ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB) > [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) > [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) > [ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (7162 kB) > [ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB) > [ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 627 kB) > [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 219 kB) > [ 0.000000] Preemptible hierarchical RCU implementation. > [ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1. > [ 0.000000] Tasks RCU enabled. > [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 > [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 > [ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 4.0) with 96 interrupts > [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/400/600 MHz > [ 0.000000] OMAP clockevent source: timer1 at 32768 Hz > [ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns > [ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns > [ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz > [ 0.001159] Console: colour dummy device 80x30 > [ 0.001220] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032) > [ 0.117279] pid_max: default: 32768 minimum: 301 > [ 0.117462] Security Framework initialized > [ 0.117553] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) > [ 0.117584] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) > [ 0.118499] CPU: Testing write buffer coherency: ok > [ 0.118988] CPU0: thread -1, cpu 0, socket -1, mpidr 0 > [ 0.157257] Setting up static identity map for 0x80100000 - 0x80100060 > [ 0.177124] Hierarchical SRCU implementation. > [ 0.217041] smp: Bringing up secondary CPUs ... > [ 0.217071] smp: Brought up 1 node, 1 CPU > [ 0.217102] SMP: Total of 1 processors activated (597.60 BogoMIPS). > [ 0.217102] CPU: All CPU(s) started in SVC mode. > [ 0.219177] devtmpfs: initialized > [ 0.247558] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3 > [ 0.248321] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns > [ 0.248352] futex hash table entries: 256 (order: 2, 16384 bytes) > [ 0.249816] pinctrl core: initialized pinctrl subsystem > [ 0.251129] NET: Registered protocol family 16 > [ 0.254211] DMA: preallocated 256 KiB pool for atomic coherent allocations > [ 0.285614] omap_hwmod: mcbsp2_sidetone using broken dt data from mcbsp > [ 0.286437] omap_hwmod: mcbsp3_sidetone using broken dt data from mcbsp > [ 0.367187] audit: initializing netlink subsys (disabled) > [ 0.369598] audit: type=2000 audit(0.370:1): state=initialized audit_enabled=0 res=1 > [ 0.376861] cpuidle: using governor menu > [ 0.377777] Reprogramming SDRC clock to 400000000 Hz > [ 0.388366] OMAP GPIO hardware version 2.5 > [ 0.397277] GPIO line 143 (irda_en) hogged as output/high > [ 0.430053] omap-gpmc 6e000000.gpmc: could not find pctldev for node /ocp@68000000/l4@48000000/scm@2000/pinmux@30/pinmux_gpmc_pins, deferring probe > [ 0.453155] No ATAGs? > [ 0.453155] hw-breakpoint: debug architecture 0x4 unsupported. > [ 0.454315] omap4_sram_init:Unable to allocate sram needed to handle errata I688 > [ 0.454345] omap4_sram_init:Unable to get sram pool needed to handle errata I688 > [ 0.454711] OMAP DMA hardware revision 5.0 > [ 0.553466] omap-dma-engine 48056000.dma-controller: OMAP DMA engine driver (LinkedList1/2/3 supported) > [ 0.558044] reg-fixed-voltage wlan_en_regulator: could not find pctldev for node /ocp@68000000/l4@48000000/scm@2000/pinmux@30/pinmux_wlan_pins, deferring probe > [ 0.558135] reg-fixed-voltage bt_en_regulator: could not find pctldev for node /ocp@68000000/l4@48000000/scm@2000/pinmux@30/pinmux_bt_pins, deferring probe > [ 0.567810] omap-iommu 480bd400.mmu: 480bd400.mmu registered > [ 0.569183] iommu: Adding device 480bc000.isp to group 0 > [ 0.573181] SCSI subsystem initialized > [ 0.573822] libata version 3.00 loaded. > [ 0.574768] usbcore: registered new interface driver usbfs > [ 0.574951] usbcore: registered new interface driver hub > [ 0.575195] usbcore: registered new device driver usb > [ 0.575897] usb_phy_generic hsusb2_phy: hsusb2_phy supply vcc not found, using dummy regulator > [ 0.581481] omap_i2c 48070000.i2c: bus 0 rev4.4 at 2600 kHz > [ 0.585662] omap_i2c 48072000.i2c: bus 1 rev4.4 at 400 kHz > [ 0.588562] omap_i2c 48060000.i2c: bus 2 rev4.4 at 100 kHz > [ 0.590576] Advanced Linux Sound Architecture Driver Initialized. > [ 0.595062] clocksource: Switched to clocksource 32k_counter > [ 0.680328] VFS: Disk quotas dquot_6.6.0 > [ 0.680480] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) > [ 0.713348] NET: Registered protocol family 2 > [ 0.714935] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes) > [ 0.714965] TCP established hash table entries: 8192 (order: 3, 32768 bytes) > [ 0.715087] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) > [ 0.716766] TCP: Hash tables configured (established 8192 bind 8192) > [ 0.716979] UDP hash table entries: 512 (order: 2, 16384 bytes) > [ 0.717041] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) > [ 0.717285] NET: Registered protocol family 1 > [ 0.721435] hw perfevents: no interrupt-affinity property for /pmu@54000000, guessing. > [ 0.722167] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available > [ 0.733459] Initialise system trusted keyrings > [ 0.734985] workingset: timestamp_bits=30 max_order=18 bucket_order=0 > [ 0.735992] squashfs: version 4.0 (2009/01/31) Phillip Lougher > [ 0.740325] Key type asymmetric registered > [ 0.740356] Asymmetric key parser 'x509' registered > [ 0.740447] bounce: pool size: 64 pages > [ 0.740600] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) > [ 0.740600] io scheduler noop registered > [ 0.740631] io scheduler deadline registered > [ 0.740692] io scheduler cfq registered (default) > [ 0.740722] io scheduler mq-deadline registered > [ 0.740722] io scheduler kyber registered > [ 0.748992] pinctrl-single 48002030.pinmux: 284 pins, size 568 > [ 0.750823] pinctrl-single 48002a00.pinmux: 46 pins, size 92 > [ 0.751983] pinctrl-single 480025a0.pinmux: 46 pins, size 92 > [ 0.752716] pinctrl-single 480022d8.pinmux: please update dts to use #pinctrl-cells = <2> > [ 0.752838] pinctrl-single 480022d8.pinmux: initialized with no interrupts > [ 0.752868] pinctrl-single 480022d8.pinmux: 4 pins, size 4 > [ 0.753448] pinctrl-single 48002274.pinmux: please update dts to use #pinctrl-cells = <2> > [ 0.753570] pinctrl-single 48002274.pinmux: initialized with no interrupts > [ 0.753601] pinctrl-single 48002274.pinmux: 4 pins, size 4 > [ 0.765106] omap_uart 4806a000.serial: no wakeirq for uart0 > [ 0.765808] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 88, base_baud = 3000000) is a OMAP UART0 > [ 0.766876] serial serial0: tty port ttyO0 registered > [ 0.767456] omap_uart 4806c000.serial: no wakeirq for uart1 > [ 0.767669] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 89, base_baud = 3000000) is a OMAP UART1 > [ 0.768402] serial serial1: tty port ttyO1 registered > [ 0.769042] omap_uart 49020000.serial: no wakeirq for uart2 > [ 0.769378] 49020000.serial: ttyO2 at MMIO 0x49020000 (irq = 90, base_baud = 3000000) is a OMAP UART2 > [ 1.675048] console [ttyO2] enabled > [ 1.680389] omap_uart 49042000.serial: no wakeirq for uart3 > [ 1.687011] 49042000.serial: ttyO3 at MMIO 0x49042000 (irq = 96, base_baud = 3000000) is a OMAP UART3 > [ 1.720733] brd: module loaded > [ 1.737548] loop: module loaded > [ 1.768859] twl 0-0048: PIH (irq 23) chaining IRQs 145..153 > [ 1.774841] twl 0-0048: power (irq 150) chaining IRQs 153..160 > [ 1.790344] VAUX3: Bringing 2800000uV into 2500000-2500000uV > [ 1.814697] VMMC2: Bringing 2600000uV into 1800000-1800000uV > [ 1.822174] VMMC2: failed to apply 1800000-1800000uV constraint(-22) > [ 1.829162] twl4030_reg 48070000.i2c:twl@48:regulator-vmmc2: can't register VMMC2, -22 > [ 1.837707] twl4030_reg: probe of 48070000.i2c:twl@48:regulator-vmmc2 failed with error -22 > [ 1.856262] VSIM: Bringing 1800000uV into 2800000-2800000uV > [ 1.899414] libphy: Fixed MDIO Bus: probed > [ 1.912872] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver > [ 1.920806] usbcore: registered new interface driver usb-storage > [ 1.928375] mousedev: PS/2 mouse device common for all mice > [ 1.937164] twl_rtc 48070000.i2c:twl@48:rtc: Power up reset detected. > [ 1.944396] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC > [ 1.953063] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48:rtc as rtc0 > [ 1.963684] i2c /dev entries driver > [ 1.968963] IR NEC protocol handler initialized > [ 1.973693] IR RC5(x/sz) protocol handler initialized > [ 1.979553] IR RC6 protocol handler initialized > [ 1.984313] IR JVC protocol handler initialized > [ 1.989166] IR Sony protocol handler initialized > [ 1.994018] IR SANYO protocol handler initialized > [ 1.999114] IR Sharp protocol handler initialized > [ 2.004058] IR MCE Keyboard/mouse protocol handler initialized > [ 2.010223] IR XMP protocol handler initialized > [ 2.014984] Driver for 1-wire Dallas network protocol. > [ 2.022155] ti-soc-thermal 48002524.bandgap: This OMAP thermal sensor is unreliable. You've been warned > [ 2.032592] ti-soc-thermal 48002524.bandgap: Non-trimmed BGAP, Temp not accurate > [ 2.043121] omap_wdt: OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec > [ 2.103393] ledtrig-cpu: registered to indicate activity on CPUs > [ 2.111541] usbcore: registered new interface driver usbhid > [ 2.119415] usbhid: USB HID core driver > [ 2.123901] ashmem: initialized > [ 2.131225] oprofile: using arm/armv7 > [ 2.135131] mmc0: host does not support reading read-only switch, assuming write-enable > [ 2.144989] Initializing XFRM netlink socket > [ 2.149841] mmc0: new high speed SDHC card at address b368 > [ 2.155792] NET: Registered protocol family 17 > [ 2.160491] NET: Registered protocol family 15 > [ 2.166320] mmcblk0: mmc0:b368 USD 7.47 GiB > [ 2.172180] Key type dns_resolver registered > [ 2.178070] omap2_set_init_voltage: unable to find boot up OPP for vdd_core > [ 2.185546] omap2_set_init_voltage: unable to set vdd_core > [ 2.192779] mmcblk0: p1 > [ 2.196899] ThumbEE CPU extension supported. > [ 2.201385] Registering SWP/SWPB emulation handler > [ 2.207519] SmartReflex Class3 initialized > [ 2.212921] Loading compiled-in X.509 certificates > [ 2.234527] omap-gpmc 6e000000.gpmc: GPMC revision 5.0 > [ 2.240295] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000 > [ 2.248382] omap2-onenand 4000000.onenand: initializing on CS0 (0x04000000), va 5c982521, DMA mode > [ 2.258270] OneNAND Manufacturer: Samsung (0xec) > [ 2.263092] Muxed OneNAND 512MB 1.8V 16-bit (0x50) > [ 2.268188] OneNAND version = 0x0232 > [ 2.271942] Chip support all block unlock > [ 2.276153] Chip has 4KiB pagesize > [ 2.279724] Chip has cache program feature > [ 2.285552] Scanning device for bad blocks > [ 2.393066] onenand_bbt_wait: ecc 0xaaaa ctrl 0x0400 intr 0x8080 addr1 0x34b addr8 0x0 > [ 2.401367] OneNAND eraseblock 843 is an initial bad block > [ 2.554351] omap2-onenand 4000000.onenand: optimized timings for 83 MHz > [ 2.561340] 5 ofpart partitions found on MTD device 4000000.onenand > [ 2.567932] Creating 5 MTD partitions on "4000000.onenand": > [ 2.573730] 0x000000000000-0x000000080000 : "X-Loader" > [ 2.580718] 0x000000080000-0x000000240000 : "U-Boot" > [ 2.587799] 0x000000240000-0x000000280000 : "U-Boot Env" > [ 2.595153] 0x000000280000-0x000000880000 : "Kernel" > [ 2.602325] 0x000000880000-0x000020000000 : "File System" > [ 2.732788] ubi0: default fastmap pool size: 100 > [ 2.739837] ubi0: default fastmap WL pool size: 50 > [ 2.744903] ubi0: attaching mtd4 > [ 2.751831] omap_hsmmc 480b4000.mmc: card claims to support voltages below defined range > [ 2.788055] mmc1: new high speed SDIO card at address 0001 > [ 2.910888] ubi0: scanning is finished > [ 2.915283] Unable to handle kernel NULL pointer dereference at virtual address 00000000 > [ 2.923767] pgd = 3b4ffe8c > [ 2.926635] [00000000] *pgd=00000000 > [ 2.930389] Internal error: Oops: 805 [#1] PREEMPT SMP ARM > [ 2.936126] Modules linked in: > [ 2.939300] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.16.0-letux+ #2187 > [ 2.946411] Hardware name: Generic OMAP36xx (Flattened Device Tree) > [ 2.952972] PC is at v7_dma_inv_range+0x30/0x48 > [ 2.957733] LR is at dma_cache_maint_page+0xd0/0xe0 > [ 2.962799] pc : [] lr : [] psr: 60000113 > [ 2.969360] sp : ee0afca8 ip : c0118b3c fp : c0a03d54 > [ 2.974822] r10: 00000002 r9 : 00001000 r8 : c0abcb00 > [ 2.980255] r7 : c0a06b84 r6 : 000c0000 r5 : 00001000 r4 : 00000000 > [ 2.987091] r3 : 0000003f r2 : 00000040 r1 : 00001000 r0 : 00000000 > [ 2.993896] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > [ 3.001342] Control: 10c5387d Table: 80004019 DAC: 00000051 > [ 3.007354] Process swapper/0 (pid: 1, stack limit = 0xb7652d0f) > [ 3.013641] Stack: (0xee0afca8 to 0xee0b0000) > [ 3.018188] fca0: efff9000 00000000 00001000 00000000 00001000 efff9000 > [ 3.026733] fcc0: 00000002 00000000 ee6f7aa8 02c41000 04000000 c0113360 c0118b3c 00000000 > [ 3.035278] fce0: 00001000 efff9000 00000000 ee6f4810 00001000 c0113444 00000400 00000000 > [ 3.043792] fd00: ee6f7820 c0515110 00000002 00000000 f0957000 c0514fc0 ee6f7820 ee0afdc8 > [ 3.052368] fd20: 00000000 00001000 ee6f7aa8 02c41000 00000000 c0511f94 00001000 ee731580 > [ 3.060913] fd40: 00006000 f0957000 00001000 00000000 00000000 00000000 00000000 00000080 > [ 3.069458] fd60: 00000000 00000000 00000000 00000fff 00007000 ee724400 00000000 00000000 > [ 3.078002] fd80: ee0afe24 00880000 00000000 ee0afdc8 00000000 c04f86b0 ee0afdc8 00000000 > [ 3.086547] fda0: 023c1000 00000000 00006000 ee724400 c04f867c c04f6588 ee0afdc8 c0acad34 > [ 3.095092] fdc0: c022f98c ee71f440 00000000 00006000 00000000 00000000 00000000 00000000 > [ 3.103637] fde0: f0957000 00000000 ee71f440 ee387000 00006000 0000008f 00001000 023c1000 > [ 3.112182] fe00: 00000000 f0957000 00000004 c051ebb8 00006000 ee0afe24 f0957000 c022fad0 > [ 3.120727] fe20: 014080c0 00000000 00000000 ee387000 ee7366f0 ee72fa80 ee0afe68 ee736710 > [ 3.129272] fe40: 00000014 c0acad34 00000000 c051643c 00006000 c0acad34 00000000 c023ad90 > [ 3.137817] fe60: f0957000 00000000 ee387000 00000000 ee387000 00000000 ee724400 ee387040 > [ 3.146362] fe80: 00000014 c0acad34 00000000 c0524e60 ee387000 ee72fa80 00000000 ee387000 > [ 3.154907] fea0: 00000000 ee387040 00000014 c051996c c0acad34 00000000 c0acad34 c095483c > [ 3.163482] fec0: ee724400 00000004 000000bc 00000000 c0acad38 ee724400 c0acad34 00000000 > [ 3.171997] fee0: c0a9c900 c095483c 00000000 c093b4f0 00000000 00000000 c0a06ca0 c0acad39 > [ 3.180541] ff00: 00000007 c093b3b8 000000bc c09705f4 00000000 c0102818 000000bb c08a5ca0 > [ 3.189086] ff20: 00000000 c014973c 00000000 c08a4e04 00000007 00000007 c08a5cb4 efffcad4 > [ 3.197662] ff40: 000000bb c08a5cb4 efffcad4 00000000 c095483c 00000007 c0954834 000000bc > [ 3.206207] ff60: 00000007 c0954838 000000bc c09705f4 c0a9c900 c0900d78 00000007 00000007 > [ 3.214752] ff80: 00000000 c090058c 00000000 c06ff350 00000000 00000000 00000000 00000000 > [ 3.223297] ffa0: 00000000 c06ff358 00000000 c01010e8 00000000 00000000 00000000 00000000 > [ 3.231842] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 3.240386] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffdfffff fffffd7f > [ 3.248962] [] (v7_dma_inv_range) from [] (dma_cache_maint_page+0xd0/0xe0) > [ 3.257965] [] (dma_cache_maint_page) from [] (__dma_page_cpu_to_dev+0x20/0x90) > [ 3.267456] [] (__dma_page_cpu_to_dev) from [] (arm_dma_map_page+0x30/0x64) > [ 3.276550] [] (arm_dma_map_page) from [] (omap2_onenand_read_bufferram+0x150/0x348) > [ 3.286468] [] (omap2_onenand_read_bufferram) from [] (onenand_read_oob+0x164/0x668) > [ 3.296386] [] (onenand_read_oob) from [] (part_read_oob+0x34/0x6c) > [ 3.304748] [] (part_read_oob) from [] (mtd_read+0xc8/0x108) > [ 3.312499] [] (mtd_read) from [] (ubi_io_read+0x158/0x250) > [ 3.320129] [] (ubi_io_read) from [] (ubi_read_volume_table+0x1ac/0x8f8) > [ 3.328948] [] (ubi_read_volume_table) from [] (ubi_attach+0x134/0x214) > [ 3.337677] [] (ubi_attach) from [] (ubi_attach_mtd_dev+0x358/0x794) > [ 3.346160] [] (ubi_attach_mtd_dev) from [] (ubi_init+0x138/0x1d8) > [ 3.354431] [] (ubi_init) from [] (do_one_initcall+0xa8/0x14c) > [ 3.362335] [] (do_one_initcall) from [] (kernel_init_freeable+0x110/0x1d4) > [ 3.371429] [] (kernel_init_freeable) from [] (kernel_init+0x8/0x10c) > [ 3.380004] [] (kernel_init) from [] (ret_from_fork+0x14/0x2c) > [ 3.387908] Exception stack(0xee0affb0 to 0xee0afff8) > [ 3.393188] ffa0: 00000000 00000000 00000000 00000000 > [ 3.401733] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 3.410278] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 3.417205] Code: 1e070f3e e1110003 e1c11003 1e071f3e (ee070f36) > [ 3.423736] ---[ end trace 3d1a74d3a673ac09 ]--- > [ 3.428649] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > [ 3.428649] > [ 3.438201] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > [ 3.438201] > --- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/mtd/nand/onenand/omap2.c +++ b/drivers/mtd/nand/onenand/omap2.c @@ -392,6 +392,7 @@ static int omap2_onenand_read_bufferram(struct mtd_info *mtd, int area, if (buf >= high_memory) { struct page *p1; + goto out_copy; if (((size_t)buf & PAGE_MASK) != ((size_t)(buf + count - 1) & PAGE_MASK)) goto out_copy;