| Message ID | 1448624071-9552-1-git-send-email-p.fedin@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Pavel, On 27 November 2015 at 03:34, Pavel Fedin <p.fedin@samsung.com> wrote: > Modern qemu includes GICv2m support for both 64 and 32 bits, therefore > 32-bit guests may also use MSI. > > Signed-off-by: Pavel Fedin <p.fedin@samsung.com> The kernelci.org bot reported new boot failures[1] in Russell's tree today. Specifically, it is causing boot regressions with multi_v7_defconfig variants on the tegra124-jetson-tk1, tegra30-beaver, and the armada-370-mirabox platforms, all of which have PCI support. I had the bot bisect[2] the boot failures, and it pointed to this commit. I reverted this commit locally and confirmed it resolved the boot failures. The tegra platforms report the following stack traces[3][4]. [ 3.606836] pcieport 0000:00:01.0: enabling device (0140 -> 0143) [ 3.612942] Unable to handle kernel paging request at virtual address ee2f2814 [ 3.620146] pgd = c0204000 [ 3.622840] [ee2f2814] *pgd=ae21141e(bad) [ 3.626851] Internal error: Oops: 8000000d [#1] SMP ARM [ 3.632059] Modules linked in: [ 3.635109] CPU: 2 PID: 64 Comm: kworker/u8:1 Not tainted 4.4.0-rc1-00015-g804df43a28db #1 [ 3.643351] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) [ 3.649612] Workqueue: deferwq deferred_probe_work_func [ 3.654825] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 [ 3.660208] PC is at 0xee2f2814 [ 3.663351] LR is at msi_domain_alloc_irqs+0x2c/0x198 [ 3.668387] pc : [] lr : [] psr: a0000113 [ 3.668387] sp : ee643c08 ip : ee6d0040 fp : 00000000 [ 3.679837] r10: ee710000 r9 : ee6fa000 r8 : ee6ea0f4 [ 3.685044] r7 : ee17dc10 r6 : 00000003 r5 : 00000001 r4 : 00000001 [ 3.691552] r3 : ee2f2814 r2 : ee6fa068 r1 : ee6ea0f4 r0 : ee710000 [ 3.698063] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 3.705177] Control: 10c5387d Table: 8020404a DAC: 00000051 [ 3.710905] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) [ 3.717242] Stack: (0xee643c08 to 0xee644000) [ 3.721586] 3c00: ee6fa000 ee6fa068 00000000 ee6fa068 00000002 ee6f9c00 [ 3.729742] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 00000003 00000001 00000001 [ 3.737900] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 ee6fa174 ee6fa000 00820001 [ 3.746056] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 00000000 ee643d88 c0a65b2c [ 3.754213] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 00000000 00000000 00000000 [ 3.762370] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 ee6fa068 ee6fa0cc ee6fa000 [ 3.770526] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 c0a65b2c c0ff494c c050656c [ 3.778683] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 ee6fa068 c1008f20 00000000 [ 3.786840] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 ee643d40 c06346a4 00000000 [ 3.794996] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 ee6fa09c ee6f9c00 c0634184 [ 3.803153] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 ee6f9c00 ee6f9c00 c04f1d98 [ 3.811310] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c c0215e94 ee6ca820 ee6ea0f4 [ 3.819467] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 ee6ea010 ee6ea0f4 ee643ddc [ 3.827624] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 c050f280 c0c97324 ee6ea010 [ 3.835780] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 ee6ea158 c100e0fc ee6ea010 [ 3.843937] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 28000000 3fffffff eefc5b8c [ 3.852094] 3e00: 00002200 00000000 00000000 00000000 2d646476 62786570 7075732d 00796c70 [ 3.860251] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 c0f479e4 00000001 ee643ddc [ 3.868407] 3e40: c050df88 00000000 00000000 00000000 00000000 c050df4c 00000000 ee16ec80 [ 3.876564] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 00000008 ee51eb00 00000000 [ 3.884720] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 00000000 c0f47920 c06343f0 [ 3.892877] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 c0632a7c ee03af70 ee3f5738 [ 3.901033] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 00000001 00000000 ee17dc10 [ 3.909190] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 c0f62918 c0f62900 c0633cd8 [ 3.917347] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 ee00b964 ee00b848 ee00b814 [ 3.925503] 3f20: 00000001 ee00b800 ee51eb18 00000088 ee51eb00 ee00b800 ee00b800 c025ee98 [ 3.933660] 3f40: ee0d3dc0 ee51f440 00000000 ee51eb00 c025ee70 00000000 00000000 00000000 [ 3.941816] 3f60: 00000000 c0264010 ee073440 00000000 ffffffff ee51eb00 00000000 00000000 [ 3.949973] 3f80: ee643f80 ee643f80 00000000 00000000 ee643f90 ee643f90 ee643fac ee51f440 [ 3.958129] 3fa0: c0263f38 00000000 00000000 c0210c38 00000000 00000000 00000000 00000000 [ 3.966286] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 3.974443] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff [ 3.982618] [] (msi_domain_alloc_irqs) from [] (pci_enable_msi_range+0x1b0/0x2e0) [ 3.991829] [] (pci_enable_msi_range) from [] (pcie_port_device_register+0x2e8/0x440) [ 4.001377] [] (pcie_port_device_register) from [] (pcie_portdrv_probe+0x3c/0x68) [ 4.010587] [] (pcie_portdrv_probe) from [] (pci_device_probe+0x84/0xd4) [ 4.019010] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) [ 4.027692] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) [ 4.036197] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) [ 4.044450] [] (__device_attach) from [] (pci_bus_add_device+0x34/0x60) [ 4.052783] [] (pci_bus_add_device) from [] (pci_bus_add_devices+0x3c/0x84) [ 4.061465] [] (pci_bus_add_devices) from [] (pci_common_init_dev+0x180/0x324) [ 4.070409] [] (pci_common_init_dev) from [] (tegra_pcie_probe+0x1138/0x198c) [ 4.079264] [] (tegra_pcie_probe) from [] (platform_drv_probe+0x50/0xac) [ 4.087683] [] (platform_drv_probe) from [] (driver_probe_device+0x1e0/0x2a8) [ 4.096534] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) [ 4.105037] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) [ 4.113281] [] (__device_attach) from [] (bus_probe_device+0x84/0x8c) [ 4.121440] [] (bus_probe_device) from [] (deferred_probe_work_func+0x5c/0x88) [ 4.130383] [] (deferred_probe_work_func) from [] (process_one_work+0x134/0x338) [ 4.139495] [] (process_one_work) from [] (worker_thread+0x28/0x4cc) [ 4.147573] [] (worker_thread) from [] (kthread+0xd8/0xf4) [ 4.154786] [] (kthread) from [] (ret_from_fork+0x14/0x3c) [ 4.161992] Code: 00000000 ee542808 ee699580 ee51fd00 (ee73800c) [ 4.168070] ---[ end trace acac6abc238bf853 ]--- [ 4.172740] Unable to handle kernel paging request at virtual address ffffffec [ 4.179943] pgd = c0204000 [ 4.182637] [ffffffec] *pgd=afffd861, *pte=00000000, *ppte=00000000 [ 4.188902] Internal error: Oops: 37 [#2] SMP ARM [ 4.193589] Modules linked in: [ 4.196637] CPU: 2 PID: 64 Comm: kworker/u8:1 Tainted: G D 4.4.0-rc1-00015-g804df43a28db #1 [ 4.206092] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) [ 4.212345] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 [ 4.217731] PC is at kthread_data+0x4/0xc [ 4.221728] LR is at wq_worker_sleeping+0xc/0xd0 [ 4.226331] pc : [] lr : [] psr: 00000193 [ 4.226331] sp : ee6439e8 ip : 00000001 fp : ee643a34 [ 4.237780] r10: c0ec467c r9 : ee0d3dc0 r8 : c0ec0080 [ 4.242988] r7 : 00000002 r6 : ee0d4050 r5 : c0ec0080 r4 : 00000002 [ 4.249496] r3 : 00000000 r2 : 00000000 r1 : 00000002 r0 : ee0d3dc0 [ 4.256004] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 4.263206] Control: 10c5387d Table: 8020404a DAC: 00000051 [ 4.268934] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) [ 4.275268] Stack: (0xee6439e8 to 0xee644000) [ 4.279611] 39e0: eefaf080 c09c68f4 00000000 ee396400 c0fcb754 00000000 [ 4.287769] 3a00: ee0d3dc0 c09c6ca8 00000000 2e0ef000 00000000 ee64381c ee070000 ee0d3fc8 [ 4.295925] 3a20: ee643a40 0000000b 00000001 00000001 ee643a3c c09c6ca8 ee0d3dc0 c024d3d4 [ 4.304082] 3a40: ee643a40 ee643a40 00000001 c0fc9604 ee643bb8 c0ec955c 60000193 0000000b [ 4.312239] 3a60: 00000001 ee2f2816 ee2f2818 c02141c4 ee642220 0000000b 00000000 c0ec955c [ 4.320396] 3a80: 00000000 00000008 30000000 30303030 20303030 34356565 38303832 36656520 [ 4.328552] 3aa0: 38353939 65652030 64663135 28203030 33376565 63303038 c0002029 ee643adc [ 4.336709] 3ac0: c0fef370 ee2f2814 8000000d c0efa440 ee643bb8 ee643bb8 ee6fa000 ee710000 [ 4.344866] 3ae0: 00000000 c0224e80 c0efa440 c02203d8 60000113 00000000 00000000 0000000d [ 4.353023] 3b00: c0220488 c0ec9bec ee2f2814 c0220490 0000000d c020a330 ee643bf4 c0cb7348 [ 4.361180] 3b20: 0000000e c0630e50 c0cb7348 ee643bf4 60000113 00000004 53425553 45545359 [ 4.369336] 3b40: 63703d4d 45440069 45434956 63702b3d 30303a69 303a3030 31303a30 c000302e [ 4.377493] 3b60: 60000113 ffffffff 00000101 c02885d0 00000400 c0286a4c 00000101 00000000 [ 4.385650] 3b80: c0fec998 60000113 00000001 c0fccf34 00000000 c0fcca18 0000003f 00000003 [ 4.393807] 3ba0: ee2f2814 a0000113 ffffffff ee643bec ee6ea0f4 c02149cc ee710000 ee6ea0f4 [ 4.401963] 3bc0: ee6fa068 ee2f2814 00000001 00000001 00000003 ee17dc10 ee6ea0f4 ee6fa000 [ 4.410119] 3be0: ee710000 00000000 ee6d0040 ee643c08 c0291fc0 ee2f2814 a0000113 ffffffff [ 4.418276] 3c00: 00000051 00000001 ee6fa000 ee6fa068 00000000 ee6fa068 00000002 ee6f9c00 [ 4.426433] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 00000003 00000001 00000001 [ 4.434590] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 ee6fa174 ee6fa000 00820001 [ 4.442747] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 00000000 ee643d88 c0a65b2c [ 4.450903] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 00000000 00000000 00000000 [ 4.459060] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 ee6fa068 ee6fa0cc ee6fa000 [ 4.467217] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 c0a65b2c c0ff494c c050656c [ 4.475373] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 ee6fa068 c1008f20 00000000 [ 4.483530] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 ee643d40 c06346a4 00000000 [ 4.491687] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 ee6fa09c ee6f9c00 c0634184 [ 4.499843] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 ee6f9c00 ee6f9c00 c04f1d98 [ 4.508002] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c c0215e94 ee6ca820 ee6ea0f4 [ 4.516160] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 ee6ea010 ee6ea0f4 ee643ddc [ 4.524318] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 c050f280 c0c97324 ee6ea010 [ 4.532475] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 ee6ea158 c100e0fc ee6ea010 [ 4.540632] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 28000000 3fffffff eefc5b8c [ 4.548788] 3e00: 00002200 00000000 00000000 00000000 2d646476 62786570 7075732d 00796c70 [ 4.556945] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 c0f479e4 00000001 ee643ddc [ 4.565101] 3e40: c050df88 00000000 00000000 00000000 00000000 c050df4c 00000000 ee16ec80 [ 4.573258] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 00000008 ee51eb00 00000000 [ 4.581414] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 00000000 c0f47920 c06343f0 [ 4.589571] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 c0632a7c ee03af70 ee3f5738 [ 4.597727] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 00000001 00000000 ee17dc10 [ 4.605884] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 c0f62918 c0f62900 c0633cd8 [ 4.614040] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 ee00b9 The Mirabox reports the following stack trace[5]. [ 1.620587] xhci_hcd 0000:02:00.0: hcc params 0x0200f181 hci version 0x96 quirks 0x00000000 [ 1.629057] Unable to handle kernel NULL pointer dereference at virtual address 00000004 [ 1.637200] pgd = c0204000 [ 1.639919] [00000004] *pgd=00000000 [ 1.643540] Internal error: Oops: 17 [#1] SMP ARM [ 1.648265] Modules linked in: [ 1.651346] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-rc1-00015-g804df43a28db #1 [ 1.659296] Hardware name: Marvell Armada 370/XP (Device Tree) [ 1.665155] task: db050000 ti: db04a000 task.ti: db04a000 [ 1.670589] PC is at msi_domain_alloc_irqs+0x1c/0x198 [ 1.675666] LR is at pci_enable_msix+0x244/0x3d8 [ 1.680305] pc : [] lr : [] psr: a0000013 [ 1.680305] sp : db04bd30 ip : 00000000 fp : 00000002 [ 1.691832] r10: db006000 r9 : db229174 r8 : 00000000 [ 1.697079] r7 : db229068 r6 : db428f40 r5 : db229000 r4 : 00000002 [ 1.703634] r3 : db006000 r2 : db229068 r1 : db229068 r0 : db006000 [ 1.710190] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 1.717356] Control: 10c5387d Table: 1b438019 DAC: 00000051 [ 1.723125] Process swapper/0 (pid: 1, stack limit = 0xdb04a220) [ 1.729157] Stack: (0xdb04bd30 to 0xdb04c000) [ 1.733535] bd20: 00000000 024080c0 db229068 db229068 [ 1.741751] bd40: db229174 00000001 00000000 c03056d4 db229068 00000002 db229000 db428f40 [ 1.749967] bd60: db229068 e086c000 db229174 00000001 00000002 c0509ea4 00070013 00002000 [ 1.758183] bd80: e08398c0 00000002 db428f40 db229000 00000002 db440000 db229068 00000001 [ 1.766400] bda0: 00000003 c050a064 00000002 db440000 db440150 db440150 db440000 c07a43a8 [ 1.774615] bdc0: db229000 00000000 db440000 db229000 00000000 db440000 00000000 db4400c0 [ 1.782831] bde0: 00000000 00000080 c100cb0c 00000001 00000003 c076baec 00000004 00000000 [ 1.791048] be00: db229000 db45a000 db440000 db229000 c0adaef4 db440000 c0ec5ad8 00000000 [ 1.799264] be20: 00000000 db229068 00000001 c077b4f4 00000000 db218370 db4241e0 db229000 [ 1.807480] be40: db229130 db229000 c0ec5ad8 00000000 c0e5683c c0adaef4 00000000 c07b3690 [ 1.815697] be60: db229068 c0f77f64 db229000 c0f77f98 00000000 c04fafa4 c04faf20 db229068 [ 1.823913] be80: c1008f20 00000000 c0f77f98 00000000 00000000 c06343f0 db229068 c0f77f98 [ 1.832129] bea0: db22909c 00000000 c0df993c c0634544 00000000 c0f77f98 c06344b8 c0632b18 [ 1.840346] bec0: db07955c db20dfb4 c0f77f98 db429a00 c0f47178 c0633ae0 c0adaee8 c0ec5ad8 [ 1.848562] bee0: c0f77f98 c0f77f98 c0ec8218 db428a00 c0fc9000 c0634d30 c0f77f64 c0ec8218 [ 1.856779] bf00: c0ec8218 c020ad08 00000010 c0fc9000 c0d7143c c0e5683c 00000000 c035d6fc [ 1.864995] bf20: 00000000 c0ef6dd4 dbfffe5b c09e8848 00000108 c02639d8 c0e5683c c0ce6d84 [ 1.873211] bf40: c0d6ff9c 00000000 00000006 00000006 c0ef6d9c dbfffe40 c0ebb6c8 00000006 [ 1.881427] bf60: c0e56830 c0fc9000 00000108 c0e5683c c0dbb598 c0dbbd9c 00000006 00000006 [ 1.889643] bf80: 00000000 c0dbb598 00000000 c09c527c 00000000 00000000 00000000 00000000 [ 1.897859] bfa0: 00000000 c09c5284 00000000 c0210c38 00000000 00000000 00000000 00000000 [ 1.906075] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1.914291] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffff0000 ffff0000 [ 1.922514] [] (msi_domain_alloc_irqs) from [] (pci_enable_msix+0x244/0x3d8) [ 1.931343] [] (pci_enable_msix) from [] (pci_enable_msix_range+0x2c/0x64) [ 1.939999] [] (pci_enable_msix_range) from [] (xhci_run+0x130/0x628) [ 1.948225] [] (xhci_run) from [] (usb_add_hcd+0x38c/0x830) [ 1.955573] [] (usb_add_hcd) from [] (usb_hcd_pci_probe+0x198/0x370) [ 1.963708] [] (usb_hcd_pci_probe) from [] (xhci_pci_probe+0x2c/0x11c) [ 1.972017] [] (xhci_pci_probe) from [] (pci_device_probe+0x84/0xd4) [ 1.980151] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) [ 1.988891] [] (driver_probe_device) from [] (__driver_attach+0x8c/0x90) [ 1.997368] [] (__driver_attach) from [] (bus_for_each_dev+0x54/0x88) [ 2.005584] [] (bus_for_each_dev) from [] (bus_add_driver+0xe8/0x1f4) [ 2.013801] [] (bus_add_driver) from [] (driver_register+0x78/0xf4) [ 2.021844] [] (driver_register) from [] (do_one_initcall+0x84/0x1d4) [ 2.030062] [] (do_one_initcall) from [] (kernel_init_freeable+0x11c/0x1e8) [ 2.038809] [] (kernel_init_freeable) from [] (kernel_init+0x8/0xec) [ 2.046942] [] (kernel_init) from [] (ret_from_fork+0x14/0x3c) [ 2.054548] Code: e1a04002 e58d100c e1a02001 e1a0a000 (e5987004) [ 2.060713] ---[ end trace d8caeed57a0ae8f6 ]--- I have not had the time to dig much deeper, so I figured I would send this report for wider review. I am always willing to re-test any fixes that may come about from this discussion, just let me know! Cheers, Tyler [1] http://kernelci.org/boot/all/job/rmk/kernel/v4.4-rc1-15-g804df43a28db/ [2] http://hastebin.com/afegogaqeg.sql [3] http://storage.kernelci.org/rmk/v4.4-rc1-15-g804df43a28db/arm-multi_v7_defconfig/lab-tbaker/boot-tegra124-jetson-tk1.txt [4] http://storage.kernelci.org/rmk/v4.4-rc1-15-g804df43a28db/arm-multi_v7_defconfig/lab-khilman/boot-tegra30-beaver.txt [5] http://storage.kernelci.org/rmk/v4.4-rc1-15-g804df43a28db/arm-multi_v7_defconfig/lab-khilman/boot-armada-370-mirabox.txt
On Thu, 3 Dec 2015 15:38:53 -0800 Tyler Baker <tyler.baker@linaro.org> wrote: Hi Tyler, > Hi Pavel, > > On 27 November 2015 at 03:34, Pavel Fedin <p.fedin@samsung.com> wrote: > > Modern qemu includes GICv2m support for both 64 and 32 bits, therefore > > 32-bit guests may also use MSI. > > > > Signed-off-by: Pavel Fedin <p.fedin@samsung.com> > > The kernelci.org bot reported new boot failures[1] in Russell's tree > today. Specifically, it is causing boot regressions with > multi_v7_defconfig variants on the tegra124-jetson-tk1, > tegra30-beaver, and the armada-370-mirabox platforms, all of which > have PCI support. I had the bot bisect[2] the boot failures, and it > pointed to this commit. I reverted this commit locally and confirmed > it resolved the boot failures. > > The tegra platforms report the following stack traces[3][4]. > > [ 3.606836] pcieport 0000:00:01.0: enabling device (0140 -> 0143) > [ 3.612942] Unable to handle kernel paging request at virtual > address ee2f2814 > [ 3.620146] pgd = c0204000 > [ 3.622840] [ee2f2814] *pgd=ae21141e(bad) > [ 3.626851] Internal error: Oops: 8000000d [#1] SMP ARM > [ 3.632059] Modules linked in: > [ 3.635109] CPU: 2 PID: 64 Comm: kworker/u8:1 Not tainted > 4.4.0-rc1-00015-g804df43a28db #1 > [ 3.643351] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) > [ 3.649612] Workqueue: deferwq deferred_probe_work_func > [ 3.654825] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 > [ 3.660208] PC is at 0xee2f2814 > [ 3.663351] LR is at msi_domain_alloc_irqs+0x2c/0x198 > [ 3.668387] pc : [] lr : [] psr: a0000113 > [ 3.668387] sp : ee643c08 ip : ee6d0040 fp : 00000000 > [ 3.679837] r10: ee710000 r9 : ee6fa000 r8 : ee6ea0f4 > [ 3.685044] r7 : ee17dc10 r6 : 00000003 r5 : 00000001 r4 : 00000001 > [ 3.691552] r3 : ee2f2814 r2 : ee6fa068 r1 : ee6ea0f4 r0 : ee710000 > [ 3.698063] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > [ 3.705177] Control: 10c5387d Table: 8020404a DAC: 00000051 > [ 3.710905] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) > [ 3.717242] Stack: (0xee643c08 to 0xee644000) > [ 3.721586] 3c00: ee6fa000 ee6fa068 00000000 > ee6fa068 00000002 ee6f9c00 > [ 3.729742] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 > 00000003 00000001 00000001 > [ 3.737900] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 > ee6fa174 ee6fa000 00820001 > [ 3.746056] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 > 00000000 ee643d88 c0a65b2c > [ 3.754213] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 > 00000000 00000000 00000000 > [ 3.762370] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 > ee6fa068 ee6fa0cc ee6fa000 > [ 3.770526] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 > c0a65b2c c0ff494c c050656c > [ 3.778683] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 > ee6fa068 c1008f20 00000000 > [ 3.786840] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 > ee643d40 c06346a4 00000000 > [ 3.794996] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 > ee6fa09c ee6f9c00 c0634184 > [ 3.803153] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 > ee6f9c00 ee6f9c00 c04f1d98 > [ 3.811310] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c > c0215e94 ee6ca820 ee6ea0f4 > [ 3.819467] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 > ee6ea010 ee6ea0f4 ee643ddc > [ 3.827624] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 > c050f280 c0c97324 ee6ea010 > [ 3.835780] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 > ee6ea158 c100e0fc ee6ea010 > [ 3.843937] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 > 28000000 3fffffff eefc5b8c > [ 3.852094] 3e00: 00002200 00000000 00000000 00000000 2d646476 > 62786570 7075732d 00796c70 > [ 3.860251] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 > c0f479e4 00000001 ee643ddc > [ 3.868407] 3e40: c050df88 00000000 00000000 00000000 00000000 > c050df4c 00000000 ee16ec80 > [ 3.876564] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 > 00000008 ee51eb00 00000000 > [ 3.884720] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 > 00000000 c0f47920 c06343f0 > [ 3.892877] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 > c0632a7c ee03af70 ee3f5738 > [ 3.901033] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 > 00000001 00000000 ee17dc10 > [ 3.909190] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 > c0f62918 c0f62900 c0633cd8 > [ 3.917347] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 > ee00b964 ee00b848 ee00b814 > [ 3.925503] 3f20: 00000001 ee00b800 ee51eb18 00000088 ee51eb00 > ee00b800 ee00b800 c025ee98 > [ 3.933660] 3f40: ee0d3dc0 ee51f440 00000000 ee51eb00 c025ee70 > 00000000 00000000 00000000 > [ 3.941816] 3f60: 00000000 c0264010 ee073440 00000000 ffffffff > ee51eb00 00000000 00000000 > [ 3.949973] 3f80: ee643f80 ee643f80 00000000 00000000 ee643f90 > ee643f90 ee643fac ee51f440 > [ 3.958129] 3fa0: c0263f38 00000000 00000000 c0210c38 00000000 > 00000000 00000000 00000000 > [ 3.966286] 3fc0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > [ 3.974443] 3fe0: 00000000 00000000 00000000 00000000 00000013 > 00000000 ffffffff ffffffff > [ 3.982618] [] (msi_domain_alloc_irqs) from [] > (pci_enable_msi_range+0x1b0/0x2e0) > [ 3.991829] [] (pci_enable_msi_range) from [] > (pcie_port_device_register+0x2e8/0x440) > [ 4.001377] [] (pcie_port_device_register) from [] > (pcie_portdrv_probe+0x3c/0x68) > [ 4.010587] [] (pcie_portdrv_probe) from [] (pci_device_probe+0x84/0xd4) > [ 4.019010] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) > [ 4.027692] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) > [ 4.036197] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) > [ 4.044450] [] (__device_attach) from [] (pci_bus_add_device+0x34/0x60) > [ 4.052783] [] (pci_bus_add_device) from [] (pci_bus_add_devices+0x3c/0x84) > [ 4.061465] [] (pci_bus_add_devices) from [] > (pci_common_init_dev+0x180/0x324) > [ 4.070409] [] (pci_common_init_dev) from [] (tegra_pcie_probe+0x1138/0x198c) > [ 4.079264] [] (tegra_pcie_probe) from [] (platform_drv_probe+0x50/0xac) > [ 4.087683] [] (platform_drv_probe) from [] (driver_probe_device+0x1e0/0x2a8) > [ 4.096534] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) > [ 4.105037] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) > [ 4.113281] [] (__device_attach) from [] (bus_probe_device+0x84/0x8c) > [ 4.121440] [] (bus_probe_device) from [] > (deferred_probe_work_func+0x5c/0x88) > [ 4.130383] [] (deferred_probe_work_func) from [] > (process_one_work+0x134/0x338) > [ 4.139495] [] (process_one_work) from [] (worker_thread+0x28/0x4cc) > [ 4.147573] [] (worker_thread) from [] (kthread+0xd8/0xf4) > [ 4.154786] [] (kthread) from [] (ret_from_fork+0x14/0x3c) > [ 4.161992] Code: 00000000 ee542808 ee699580 ee51fd00 (ee73800c) > [ 4.168070] ---[ end trace acac6abc238bf853 ]--- > [ 4.172740] Unable to handle kernel paging request at virtual > address ffffffec > [ 4.179943] pgd = c0204000 > [ 4.182637] [ffffffec] *pgd=afffd861, *pte=00000000, *ppte=00000000 > [ 4.188902] Internal error: Oops: 37 [#2] SMP ARM > [ 4.193589] Modules linked in: > [ 4.196637] CPU: 2 PID: 64 Comm: kworker/u8:1 Tainted: G D > 4.4.0-rc1-00015-g804df43a28db #1 > [ 4.206092] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) > [ 4.212345] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 > [ 4.217731] PC is at kthread_data+0x4/0xc > [ 4.221728] LR is at wq_worker_sleeping+0xc/0xd0 > [ 4.226331] pc : [] lr : [] psr: 00000193 > [ 4.226331] sp : ee6439e8 ip : 00000001 fp : ee643a34 > [ 4.237780] r10: c0ec467c r9 : ee0d3dc0 r8 : c0ec0080 > [ 4.242988] r7 : 00000002 r6 : ee0d4050 r5 : c0ec0080 r4 : 00000002 > [ 4.249496] r3 : 00000000 r2 : 00000000 r1 : 00000002 r0 : ee0d3dc0 > [ 4.256004] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM > Segment none > [ 4.263206] Control: 10c5387d Table: 8020404a DAC: 00000051 > [ 4.268934] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) > [ 4.275268] Stack: (0xee6439e8 to 0xee644000) > [ 4.279611] 39e0: eefaf080 c09c68f4 00000000 > ee396400 c0fcb754 00000000 > [ 4.287769] 3a00: ee0d3dc0 c09c6ca8 00000000 2e0ef000 00000000 > ee64381c ee070000 ee0d3fc8 > [ 4.295925] 3a20: ee643a40 0000000b 00000001 00000001 ee643a3c > c09c6ca8 ee0d3dc0 c024d3d4 > [ 4.304082] 3a40: ee643a40 ee643a40 00000001 c0fc9604 ee643bb8 > c0ec955c 60000193 0000000b > [ 4.312239] 3a60: 00000001 ee2f2816 ee2f2818 c02141c4 ee642220 > 0000000b 00000000 c0ec955c > [ 4.320396] 3a80: 00000000 00000008 30000000 30303030 20303030 > 34356565 38303832 36656520 > [ 4.328552] 3aa0: 38353939 65652030 64663135 28203030 33376565 > 63303038 c0002029 ee643adc > [ 4.336709] 3ac0: c0fef370 ee2f2814 8000000d c0efa440 ee643bb8 > ee643bb8 ee6fa000 ee710000 > [ 4.344866] 3ae0: 00000000 c0224e80 c0efa440 c02203d8 60000113 > 00000000 00000000 0000000d > [ 4.353023] 3b00: c0220488 c0ec9bec ee2f2814 c0220490 0000000d > c020a330 ee643bf4 c0cb7348 > [ 4.361180] 3b20: 0000000e c0630e50 c0cb7348 ee643bf4 60000113 > 00000004 53425553 45545359 > [ 4.369336] 3b40: 63703d4d 45440069 45434956 63702b3d 30303a69 > 303a3030 31303a30 c000302e > [ 4.377493] 3b60: 60000113 ffffffff 00000101 c02885d0 00000400 > c0286a4c 00000101 00000000 > [ 4.385650] 3b80: c0fec998 60000113 00000001 c0fccf34 00000000 > c0fcca18 0000003f 00000003 > [ 4.393807] 3ba0: ee2f2814 a0000113 ffffffff ee643bec ee6ea0f4 > c02149cc ee710000 ee6ea0f4 > [ 4.401963] 3bc0: ee6fa068 ee2f2814 00000001 00000001 00000003 > ee17dc10 ee6ea0f4 ee6fa000 > [ 4.410119] 3be0: ee710000 00000000 ee6d0040 ee643c08 c0291fc0 > ee2f2814 a0000113 ffffffff > [ 4.418276] 3c00: 00000051 00000001 ee6fa000 ee6fa068 00000000 > ee6fa068 00000002 ee6f9c00 > [ 4.426433] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 > 00000003 00000001 00000001 > [ 4.434590] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 > ee6fa174 ee6fa000 00820001 > [ 4.442747] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 > 00000000 ee643d88 c0a65b2c > [ 4.450903] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 > 00000000 00000000 00000000 > [ 4.459060] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 > ee6fa068 ee6fa0cc ee6fa000 > [ 4.467217] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 > c0a65b2c c0ff494c c050656c > [ 4.475373] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 > ee6fa068 c1008f20 00000000 > [ 4.483530] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 > ee643d40 c06346a4 00000000 > [ 4.491687] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 > ee6fa09c ee6f9c00 c0634184 > [ 4.499843] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 > ee6f9c00 ee6f9c00 c04f1d98 > [ 4.508002] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c > c0215e94 ee6ca820 ee6ea0f4 > [ 4.516160] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 > ee6ea010 ee6ea0f4 ee643ddc > [ 4.524318] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 > c050f280 c0c97324 ee6ea010 > [ 4.532475] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 > ee6ea158 c100e0fc ee6ea010 > [ 4.540632] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 > 28000000 3fffffff eefc5b8c > [ 4.548788] 3e00: 00002200 00000000 00000000 00000000 2d646476 > 62786570 7075732d 00796c70 > [ 4.556945] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 > c0f479e4 00000001 ee643ddc > [ 4.565101] 3e40: c050df88 00000000 00000000 00000000 00000000 > c050df4c 00000000 ee16ec80 > [ 4.573258] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 > 00000008 ee51eb00 00000000 > [ 4.581414] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 > 00000000 c0f47920 c06343f0 > [ 4.589571] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 > c0632a7c ee03af70 ee3f5738 > [ 4.597727] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 > 00000001 00000000 ee17dc10 > [ 4.605884] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 > c0f62918 c0f62900 c0633cd8 > [ 4.614040] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 ee00b9 > > The Mirabox reports the following stack trace[5]. > > [ 1.620587] xhci_hcd 0000:02:00.0: hcc params 0x0200f181 hci > version 0x96 quirks 0x00000000 > [ 1.629057] Unable to handle kernel NULL pointer dereference at > virtual address 00000004 > [ 1.637200] pgd = c0204000 > [ 1.639919] [00000004] *pgd=00000000 > [ 1.643540] Internal error: Oops: 17 [#1] SMP ARM > [ 1.648265] Modules linked in: > [ 1.651346] CPU: 0 PID: 1 Comm: swapper/0 Not tainted > 4.4.0-rc1-00015-g804df43a28db #1 > [ 1.659296] Hardware name: Marvell Armada 370/XP (Device Tree) > [ 1.665155] task: db050000 ti: db04a000 task.ti: db04a000 > [ 1.670589] PC is at msi_domain_alloc_irqs+0x1c/0x198 > [ 1.675666] LR is at pci_enable_msix+0x244/0x3d8 > [ 1.680305] pc : [] lr : [] psr: a0000013 > [ 1.680305] sp : db04bd30 ip : 00000000 fp : 00000002 > [ 1.691832] r10: db006000 r9 : db229174 r8 : 00000000 > [ 1.697079] r7 : db229068 r6 : db428f40 r5 : db229000 r4 : 00000002 > [ 1.703634] r3 : db006000 r2 : db229068 r1 : db229068 r0 : db006000 > [ 1.710190] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > [ 1.717356] Control: 10c5387d Table: 1b438019 DAC: 00000051 > [ 1.723125] Process swapper/0 (pid: 1, stack limit = 0xdb04a220) > [ 1.729157] Stack: (0xdb04bd30 to 0xdb04c000) > [ 1.733535] bd20: 00000000 > 024080c0 db229068 db229068 > [ 1.741751] bd40: db229174 00000001 00000000 c03056d4 db229068 > 00000002 db229000 db428f40 > [ 1.749967] bd60: db229068 e086c000 db229174 00000001 00000002 > c0509ea4 00070013 00002000 > [ 1.758183] bd80: e08398c0 00000002 db428f40 db229000 00000002 > db440000 db229068 00000001 > [ 1.766400] bda0: 00000003 c050a064 00000002 db440000 db440150 > db440150 db440000 c07a43a8 > [ 1.774615] bdc0: db229000 00000000 db440000 db229000 00000000 > db440000 00000000 db4400c0 > [ 1.782831] bde0: 00000000 00000080 c100cb0c 00000001 00000003 > c076baec 00000004 00000000 > [ 1.791048] be00: db229000 db45a000 db440000 db229000 c0adaef4 > db440000 c0ec5ad8 00000000 > [ 1.799264] be20: 00000000 db229068 00000001 c077b4f4 00000000 > db218370 db4241e0 db229000 > [ 1.807480] be40: db229130 db229000 c0ec5ad8 00000000 c0e5683c > c0adaef4 00000000 c07b3690 > [ 1.815697] be60: db229068 c0f77f64 db229000 c0f77f98 00000000 > c04fafa4 c04faf20 db229068 > [ 1.823913] be80: c1008f20 00000000 c0f77f98 00000000 00000000 > c06343f0 db229068 c0f77f98 > [ 1.832129] bea0: db22909c 00000000 c0df993c c0634544 00000000 > c0f77f98 c06344b8 c0632b18 > [ 1.840346] bec0: db07955c db20dfb4 c0f77f98 db429a00 c0f47178 > c0633ae0 c0adaee8 c0ec5ad8 > [ 1.848562] bee0: c0f77f98 c0f77f98 c0ec8218 db428a00 c0fc9000 > c0634d30 c0f77f64 c0ec8218 > [ 1.856779] bf00: c0ec8218 c020ad08 00000010 c0fc9000 c0d7143c > c0e5683c 00000000 c035d6fc > [ 1.864995] bf20: 00000000 c0ef6dd4 dbfffe5b c09e8848 00000108 > c02639d8 c0e5683c c0ce6d84 > [ 1.873211] bf40: c0d6ff9c 00000000 00000006 00000006 c0ef6d9c > dbfffe40 c0ebb6c8 00000006 > [ 1.881427] bf60: c0e56830 c0fc9000 00000108 c0e5683c c0dbb598 > c0dbbd9c 00000006 00000006 > [ 1.889643] bf80: 00000000 c0dbb598 00000000 c09c527c 00000000 > 00000000 00000000 00000000 > [ 1.897859] bfa0: 00000000 c09c5284 00000000 c0210c38 00000000 > 00000000 00000000 00000000 > [ 1.906075] bfc0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > [ 1.914291] bfe0: 00000000 00000000 00000000 00000000 00000013 > 00000000 ffff0000 ffff0000 > [ 1.922514] [] (msi_domain_alloc_irqs) from [] (pci_enable_msix+0x244/0x3d8) > [ 1.931343] [] (pci_enable_msix) from [] (pci_enable_msix_range+0x2c/0x64) > [ 1.939999] [] (pci_enable_msix_range) from [] (xhci_run+0x130/0x628) > [ 1.948225] [] (xhci_run) from [] (usb_add_hcd+0x38c/0x830) > [ 1.955573] [] (usb_add_hcd) from [] (usb_hcd_pci_probe+0x198/0x370) > [ 1.963708] [] (usb_hcd_pci_probe) from [] (xhci_pci_probe+0x2c/0x11c) > [ 1.972017] [] (xhci_pci_probe) from [] (pci_device_probe+0x84/0xd4) > [ 1.980151] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) > [ 1.988891] [] (driver_probe_device) from [] (__driver_attach+0x8c/0x90) > [ 1.997368] [] (__driver_attach) from [] (bus_for_each_dev+0x54/0x88) > [ 2.005584] [] (bus_for_each_dev) from [] (bus_add_driver+0xe8/0x1f4) > [ 2.013801] [] (bus_add_driver) from [] (driver_register+0x78/0xf4) > [ 2.021844] [] (driver_register) from [] (do_one_initcall+0x84/0x1d4) > [ 2.030062] [] (do_one_initcall) from [] (kernel_init_freeable+0x11c/0x1e8) > [ 2.038809] [] (kernel_init_freeable) from [] (kernel_init+0x8/0xec) > [ 2.046942] [] (kernel_init) from [] (ret_from_fork+0x14/0x3c) > [ 2.054548] Code: e1a04002 e58d100c e1a02001 e1a0a000 (e5987004) > [ 2.060713] ---[ end trace d8caeed57a0ae8f6 ]--- > > I have not had the time to dig much deeper, so I figured I would send > this report for wider review. I am always willing to re-test any fixes > that may come about from this discussion, just let me know! This looks a lot like something I've recently fixed: https://lkml.org/lkml/2015/11/23/388 Can you give it a go and let me know if that helps? Thanks, M.
Hi Marc, On 4 December 2015 at 00:08, Marc Zyngier <marc.zyngier@arm.com> wrote: > On Thu, 3 Dec 2015 15:38:53 -0800 > Tyler Baker <tyler.baker@linaro.org> wrote: > > Hi Tyler, > >> Hi Pavel, >> >> On 27 November 2015 at 03:34, Pavel Fedin <p.fedin@samsung.com> wrote: >> > Modern qemu includes GICv2m support for both 64 and 32 bits, therefore >> > 32-bit guests may also use MSI. >> > >> > Signed-off-by: Pavel Fedin <p.fedin@samsung.com> >> >> The kernelci.org bot reported new boot failures[1] in Russell's tree >> today. Specifically, it is causing boot regressions with >> multi_v7_defconfig variants on the tegra124-jetson-tk1, >> tegra30-beaver, and the armada-370-mirabox platforms, all of which >> have PCI support. I had the bot bisect[2] the boot failures, and it >> pointed to this commit. I reverted this commit locally and confirmed >> it resolved the boot failures. >> >> The tegra platforms report the following stack traces[3][4]. >> >> [ 3.606836] pcieport 0000:00:01.0: enabling device (0140 -> 0143) >> [ 3.612942] Unable to handle kernel paging request at virtual >> address ee2f2814 >> [ 3.620146] pgd = c0204000 >> [ 3.622840] [ee2f2814] *pgd=ae21141e(bad) >> [ 3.626851] Internal error: Oops: 8000000d [#1] SMP ARM >> [ 3.632059] Modules linked in: >> [ 3.635109] CPU: 2 PID: 64 Comm: kworker/u8:1 Not tainted >> 4.4.0-rc1-00015-g804df43a28db #1 >> [ 3.643351] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) >> [ 3.649612] Workqueue: deferwq deferred_probe_work_func >> [ 3.654825] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 >> [ 3.660208] PC is at 0xee2f2814 >> [ 3.663351] LR is at msi_domain_alloc_irqs+0x2c/0x198 >> [ 3.668387] pc : [] lr : [] psr: a0000113 >> [ 3.668387] sp : ee643c08 ip : ee6d0040 fp : 00000000 >> [ 3.679837] r10: ee710000 r9 : ee6fa000 r8 : ee6ea0f4 >> [ 3.685044] r7 : ee17dc10 r6 : 00000003 r5 : 00000001 r4 : 00000001 >> [ 3.691552] r3 : ee2f2814 r2 : ee6fa068 r1 : ee6ea0f4 r0 : ee710000 >> [ 3.698063] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none >> [ 3.705177] Control: 10c5387d Table: 8020404a DAC: 00000051 >> [ 3.710905] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) >> [ 3.717242] Stack: (0xee643c08 to 0xee644000) >> [ 3.721586] 3c00: ee6fa000 ee6fa068 00000000 >> ee6fa068 00000002 ee6f9c00 >> [ 3.729742] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 >> 00000003 00000001 00000001 >> [ 3.737900] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 >> ee6fa174 ee6fa000 00820001 >> [ 3.746056] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 >> 00000000 ee643d88 c0a65b2c >> [ 3.754213] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 >> 00000000 00000000 00000000 >> [ 3.762370] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 >> ee6fa068 ee6fa0cc ee6fa000 >> [ 3.770526] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 >> c0a65b2c c0ff494c c050656c >> [ 3.778683] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 >> ee6fa068 c1008f20 00000000 >> [ 3.786840] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 >> ee643d40 c06346a4 00000000 >> [ 3.794996] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 >> ee6fa09c ee6f9c00 c0634184 >> [ 3.803153] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 >> ee6f9c00 ee6f9c00 c04f1d98 >> [ 3.811310] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c >> c0215e94 ee6ca820 ee6ea0f4 >> [ 3.819467] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 >> ee6ea010 ee6ea0f4 ee643ddc >> [ 3.827624] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 >> c050f280 c0c97324 ee6ea010 >> [ 3.835780] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 >> ee6ea158 c100e0fc ee6ea010 >> [ 3.843937] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 >> 28000000 3fffffff eefc5b8c >> [ 3.852094] 3e00: 00002200 00000000 00000000 00000000 2d646476 >> 62786570 7075732d 00796c70 >> [ 3.860251] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 >> c0f479e4 00000001 ee643ddc >> [ 3.868407] 3e40: c050df88 00000000 00000000 00000000 00000000 >> c050df4c 00000000 ee16ec80 >> [ 3.876564] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 >> 00000008 ee51eb00 00000000 >> [ 3.884720] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 >> 00000000 c0f47920 c06343f0 >> [ 3.892877] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 >> c0632a7c ee03af70 ee3f5738 >> [ 3.901033] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 >> 00000001 00000000 ee17dc10 >> [ 3.909190] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 >> c0f62918 c0f62900 c0633cd8 >> [ 3.917347] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 >> ee00b964 ee00b848 ee00b814 >> [ 3.925503] 3f20: 00000001 ee00b800 ee51eb18 00000088 ee51eb00 >> ee00b800 ee00b800 c025ee98 >> [ 3.933660] 3f40: ee0d3dc0 ee51f440 00000000 ee51eb00 c025ee70 >> 00000000 00000000 00000000 >> [ 3.941816] 3f60: 00000000 c0264010 ee073440 00000000 ffffffff >> ee51eb00 00000000 00000000 >> [ 3.949973] 3f80: ee643f80 ee643f80 00000000 00000000 ee643f90 >> ee643f90 ee643fac ee51f440 >> [ 3.958129] 3fa0: c0263f38 00000000 00000000 c0210c38 00000000 >> 00000000 00000000 00000000 >> [ 3.966286] 3fc0: 00000000 00000000 00000000 00000000 00000000 >> 00000000 00000000 00000000 >> [ 3.974443] 3fe0: 00000000 00000000 00000000 00000000 00000013 >> 00000000 ffffffff ffffffff >> [ 3.982618] [] (msi_domain_alloc_irqs) from [] >> (pci_enable_msi_range+0x1b0/0x2e0) >> [ 3.991829] [] (pci_enable_msi_range) from [] >> (pcie_port_device_register+0x2e8/0x440) >> [ 4.001377] [] (pcie_port_device_register) from [] >> (pcie_portdrv_probe+0x3c/0x68) >> [ 4.010587] [] (pcie_portdrv_probe) from [] (pci_device_probe+0x84/0xd4) >> [ 4.019010] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) >> [ 4.027692] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) >> [ 4.036197] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) >> [ 4.044450] [] (__device_attach) from [] (pci_bus_add_device+0x34/0x60) >> [ 4.052783] [] (pci_bus_add_device) from [] (pci_bus_add_devices+0x3c/0x84) >> [ 4.061465] [] (pci_bus_add_devices) from [] >> (pci_common_init_dev+0x180/0x324) >> [ 4.070409] [] (pci_common_init_dev) from [] (tegra_pcie_probe+0x1138/0x198c) >> [ 4.079264] [] (tegra_pcie_probe) from [] (platform_drv_probe+0x50/0xac) >> [ 4.087683] [] (platform_drv_probe) from [] (driver_probe_device+0x1e0/0x2a8) >> [ 4.096534] [] (driver_probe_device) from [] (bus_for_each_drv+0x44/0x8c) >> [ 4.105037] [] (bus_for_each_drv) from [] (__device_attach+0xa0/0x104) >> [ 4.113281] [] (__device_attach) from [] (bus_probe_device+0x84/0x8c) >> [ 4.121440] [] (bus_probe_device) from [] >> (deferred_probe_work_func+0x5c/0x88) >> [ 4.130383] [] (deferred_probe_work_func) from [] >> (process_one_work+0x134/0x338) >> [ 4.139495] [] (process_one_work) from [] (worker_thread+0x28/0x4cc) >> [ 4.147573] [] (worker_thread) from [] (kthread+0xd8/0xf4) >> [ 4.154786] [] (kthread) from [] (ret_from_fork+0x14/0x3c) >> [ 4.161992] Code: 00000000 ee542808 ee699580 ee51fd00 (ee73800c) >> [ 4.168070] ---[ end trace acac6abc238bf853 ]--- >> [ 4.172740] Unable to handle kernel paging request at virtual >> address ffffffec >> [ 4.179943] pgd = c0204000 >> [ 4.182637] [ffffffec] *pgd=afffd861, *pte=00000000, *ppte=00000000 >> [ 4.188902] Internal error: Oops: 37 [#2] SMP ARM >> [ 4.193589] Modules linked in: >> [ 4.196637] CPU: 2 PID: 64 Comm: kworker/u8:1 Tainted: G D >> 4.4.0-rc1-00015-g804df43a28db #1 >> [ 4.206092] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) >> [ 4.212345] task: ee0d3dc0 ti: ee642000 task.ti: ee642000 >> [ 4.217731] PC is at kthread_data+0x4/0xc >> [ 4.221728] LR is at wq_worker_sleeping+0xc/0xd0 >> [ 4.226331] pc : [] lr : [] psr: 00000193 >> [ 4.226331] sp : ee6439e8 ip : 00000001 fp : ee643a34 >> [ 4.237780] r10: c0ec467c r9 : ee0d3dc0 r8 : c0ec0080 >> [ 4.242988] r7 : 00000002 r6 : ee0d4050 r5 : c0ec0080 r4 : 00000002 >> [ 4.249496] r3 : 00000000 r2 : 00000000 r1 : 00000002 r0 : ee0d3dc0 >> [ 4.256004] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM >> Segment none >> [ 4.263206] Control: 10c5387d Table: 8020404a DAC: 00000051 >> [ 4.268934] Process kworker/u8:1 (pid: 64, stack limit = 0xee642220) >> [ 4.275268] Stack: (0xee6439e8 to 0xee644000) >> [ 4.279611] 39e0: eefaf080 c09c68f4 00000000 >> ee396400 c0fcb754 00000000 >> [ 4.287769] 3a00: ee0d3dc0 c09c6ca8 00000000 2e0ef000 00000000 >> ee64381c ee070000 ee0d3fc8 >> [ 4.295925] 3a20: ee643a40 0000000b 00000001 00000001 ee643a3c >> c09c6ca8 ee0d3dc0 c024d3d4 >> [ 4.304082] 3a40: ee643a40 ee643a40 00000001 c0fc9604 ee643bb8 >> c0ec955c 60000193 0000000b >> [ 4.312239] 3a60: 00000001 ee2f2816 ee2f2818 c02141c4 ee642220 >> 0000000b 00000000 c0ec955c >> [ 4.320396] 3a80: 00000000 00000008 30000000 30303030 20303030 >> 34356565 38303832 36656520 >> [ 4.328552] 3aa0: 38353939 65652030 64663135 28203030 33376565 >> 63303038 c0002029 ee643adc >> [ 4.336709] 3ac0: c0fef370 ee2f2814 8000000d c0efa440 ee643bb8 >> ee643bb8 ee6fa000 ee710000 >> [ 4.344866] 3ae0: 00000000 c0224e80 c0efa440 c02203d8 60000113 >> 00000000 00000000 0000000d >> [ 4.353023] 3b00: c0220488 c0ec9bec ee2f2814 c0220490 0000000d >> c020a330 ee643bf4 c0cb7348 >> [ 4.361180] 3b20: 0000000e c0630e50 c0cb7348 ee643bf4 60000113 >> 00000004 53425553 45545359 >> [ 4.369336] 3b40: 63703d4d 45440069 45434956 63702b3d 30303a69 >> 303a3030 31303a30 c000302e >> [ 4.377493] 3b60: 60000113 ffffffff 00000101 c02885d0 00000400 >> c0286a4c 00000101 00000000 >> [ 4.385650] 3b80: c0fec998 60000113 00000001 c0fccf34 00000000 >> c0fcca18 0000003f 00000003 >> [ 4.393807] 3ba0: ee2f2814 a0000113 ffffffff ee643bec ee6ea0f4 >> c02149cc ee710000 ee6ea0f4 >> [ 4.401963] 3bc0: ee6fa068 ee2f2814 00000001 00000001 00000003 >> ee17dc10 ee6ea0f4 ee6fa000 >> [ 4.410119] 3be0: ee710000 00000000 ee6d0040 ee643c08 c0291fc0 >> ee2f2814 a0000113 ffffffff >> [ 4.418276] 3c00: 00000051 00000001 ee6fa000 ee6fa068 00000000 >> ee6fa068 00000002 ee6f9c00 >> [ 4.426433] 3c20: ee643c5e c04f0ad4 ee643c3c ee6d0040 00000001 >> 00000003 00000001 00000001 >> [ 4.434590] 3c40: ee6fa000 ee6fa068 00000000 c0509af0 00000004 >> ee6fa174 ee6fa000 00820001 >> [ 4.442747] 3c60: 00000002 00000000 ee6fa000 00000002 00000001 >> 00000000 ee643d88 c0a65b2c >> [ 4.450903] 3c80: c0ff494c c0506298 ee6cf9b0 c03663a4 ee6fa068 >> 00000000 00000000 00000000 >> [ 4.459060] 3ca0: 00000001 c0366634 00000004 ee6c8b90 ee3f6aa0 >> ee6fa068 ee6fa0cc ee6fa000 >> [ 4.467217] 3cc0: c0f475cc ee6fa000 c0f47600 00000000 ee643d88 >> c0a65b2c c0ff494c c050656c >> [ 4.475373] 3ce0: c0506530 ee6fa068 c0f475cc c04fafa4 c04faf20 >> ee6fa068 c1008f20 00000000 >> [ 4.483530] 3d00: c0f47600 00000009 00000100 c06343f0 00000000 >> ee643d40 c06346a4 00000000 >> [ 4.491687] 3d20: 00010000 c0632a7c ee041c70 ee3f5538 ee6fa068 >> ee6fa09c ee6f9c00 c0634184 >> [ 4.499843] 3d40: ee6fa068 00000000 ee6f9c14 ee6fa000 ee6f9c14 >> ee6f9c00 ee6f9c00 c04f1d98 >> [ 4.508002] 3d60: ee6fa000 c04f1eb8 ee6f9c0c ee6ca800 ee6f9c0c >> c0215e94 ee6ca820 ee6ea0f4 >> [ 4.516160] 3d80: c0636d9c ee17dc10 ee6ca800 ee6ca800 ee6ea154 >> ee6ea010 ee6ea0f4 ee643ddc >> [ 4.524318] 3da0: ee6b7810 f087e928 ee6ea010 c0a660e4 ee6ea010 >> c050f280 c0c97324 ee6ea010 >> [ 4.532475] 3dc0: 00000000 ee17dc10 ee17dc00 00000033 c0a664f4 >> ee6ea158 c100e0fc ee6ea010 >> [ 4.540632] 3de0: eefc5b34 c1f003e4 c1f003e4 00000006 00000001 >> 28000000 3fffffff eefc5b8c >> [ 4.548788] 3e00: 00002200 00000000 00000000 00000000 2d646476 >> 62786570 7075732d 00796c70 >> [ 4.556945] 3e20: 796c7000 00000000 00000000 00000000 ee6ea0f4 >> c0f479e4 00000001 ee643ddc >> [ 4.565101] 3e40: c050df88 00000000 00000000 00000000 00000000 >> c050df4c 00000000 ee16ec80 >> [ 4.573258] 3e60: 00000001 fffffffe ee17dc10 fffffdfb c0f47920 >> 00000008 ee51eb00 00000000 >> [ 4.581414] 3e80: ee00b800 c0635a88 c0635a38 ee17dc10 c1008f20 >> 00000000 c0f47920 c06343f0 >> [ 4.589571] 3ea0: 00000000 ee643ed0 c06346a4 00000001 00000000 >> c0632a7c ee03af70 ee3f5738 >> [ 4.597727] 3ec0: ee17dc10 ee17dc44 c0f62978 c0634184 ee17dc10 >> 00000001 00000000 ee17dc10 >> [ 4.605884] 3ee0: ee17dc10 c0f62978 ee660700 c06338fc ee17dc10 >> c0f62918 c0f62900 c0633cd8 >> [ 4.614040] 3f00: ee51eb00 c0f62934 ee00b800 c025ec38 ee00b814 ee00b9 >> >> The Mirabox reports the following stack trace[5]. >> >> [ 1.620587] xhci_hcd 0000:02:00.0: hcc params 0x0200f181 hci >> version 0x96 quirks 0x00000000 >> [ 1.629057] Unable to handle kernel NULL pointer dereference at >> virtual address 00000004 >> [ 1.637200] pgd = c0204000 >> [ 1.639919] [00000004] *pgd=00000000 >> [ 1.643540] Internal error: Oops: 17 [#1] SMP ARM >> [ 1.648265] Modules linked in: >> [ 1.651346] CPU: 0 PID: 1 Comm: swapper/0 Not tainted >> 4.4.0-rc1-00015-g804df43a28db #1 >> [ 1.659296] Hardware name: Marvell Armada 370/XP (Device Tree) >> [ 1.665155] task: db050000 ti: db04a000 task.ti: db04a000 >> [ 1.670589] PC is at msi_domain_alloc_irqs+0x1c/0x198 >> [ 1.675666] LR is at pci_enable_msix+0x244/0x3d8 >> [ 1.680305] pc : [] lr : [] psr: a0000013 >> [ 1.680305] sp : db04bd30 ip : 00000000 fp : 00000002 >> [ 1.691832] r10: db006000 r9 : db229174 r8 : 00000000 >> [ 1.697079] r7 : db229068 r6 : db428f40 r5 : db229000 r4 : 00000002 >> [ 1.703634] r3 : db006000 r2 : db229068 r1 : db229068 r0 : db006000 >> [ 1.710190] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none >> [ 1.717356] Control: 10c5387d Table: 1b438019 DAC: 00000051 >> [ 1.723125] Process swapper/0 (pid: 1, stack limit = 0xdb04a220) >> [ 1.729157] Stack: (0xdb04bd30 to 0xdb04c000) >> [ 1.733535] bd20: 00000000 >> 024080c0 db229068 db229068 >> [ 1.741751] bd40: db229174 00000001 00000000 c03056d4 db229068 >> 00000002 db229000 db428f40 >> [ 1.749967] bd60: db229068 e086c000 db229174 00000001 00000002 >> c0509ea4 00070013 00002000 >> [ 1.758183] bd80: e08398c0 00000002 db428f40 db229000 00000002 >> db440000 db229068 00000001 >> [ 1.766400] bda0: 00000003 c050a064 00000002 db440000 db440150 >> db440150 db440000 c07a43a8 >> [ 1.774615] bdc0: db229000 00000000 db440000 db229000 00000000 >> db440000 00000000 db4400c0 >> [ 1.782831] bde0: 00000000 00000080 c100cb0c 00000001 00000003 >> c076baec 00000004 00000000 >> [ 1.791048] be00: db229000 db45a000 db440000 db229000 c0adaef4 >> db440000 c0ec5ad8 00000000 >> [ 1.799264] be20: 00000000 db229068 00000001 c077b4f4 00000000 >> db218370 db4241e0 db229000 >> [ 1.807480] be40: db229130 db229000 c0ec5ad8 00000000 c0e5683c >> c0adaef4 00000000 c07b3690 >> [ 1.815697] be60: db229068 c0f77f64 db229000 c0f77f98 00000000 >> c04fafa4 c04faf20 db229068 >> [ 1.823913] be80: c1008f20 00000000 c0f77f98 00000000 00000000 >> c06343f0 db229068 c0f77f98 >> [ 1.832129] bea0: db22909c 00000000 c0df993c c0634544 00000000 >> c0f77f98 c06344b8 c0632b18 >> [ 1.840346] bec0: db07955c db20dfb4 c0f77f98 db429a00 c0f47178 >> c0633ae0 c0adaee8 c0ec5ad8 >> [ 1.848562] bee0: c0f77f98 c0f77f98 c0ec8218 db428a00 c0fc9000 >> c0634d30 c0f77f64 c0ec8218 >> [ 1.856779] bf00: c0ec8218 c020ad08 00000010 c0fc9000 c0d7143c >> c0e5683c 00000000 c035d6fc >> [ 1.864995] bf20: 00000000 c0ef6dd4 dbfffe5b c09e8848 00000108 >> c02639d8 c0e5683c c0ce6d84 >> [ 1.873211] bf40: c0d6ff9c 00000000 00000006 00000006 c0ef6d9c >> dbfffe40 c0ebb6c8 00000006 >> [ 1.881427] bf60: c0e56830 c0fc9000 00000108 c0e5683c c0dbb598 >> c0dbbd9c 00000006 00000006 >> [ 1.889643] bf80: 00000000 c0dbb598 00000000 c09c527c 00000000 >> 00000000 00000000 00000000 >> [ 1.897859] bfa0: 00000000 c09c5284 00000000 c0210c38 00000000 >> 00000000 00000000 00000000 >> [ 1.906075] bfc0: 00000000 00000000 00000000 00000000 00000000 >> 00000000 00000000 00000000 >> [ 1.914291] bfe0: 00000000 00000000 00000000 00000000 00000013 >> 00000000 ffff0000 ffff0000 >> [ 1.922514] [] (msi_domain_alloc_irqs) from [] (pci_enable_msix+0x244/0x3d8) >> [ 1.931343] [] (pci_enable_msix) from [] (pci_enable_msix_range+0x2c/0x64) >> [ 1.939999] [] (pci_enable_msix_range) from [] (xhci_run+0x130/0x628) >> [ 1.948225] [] (xhci_run) from [] (usb_add_hcd+0x38c/0x830) >> [ 1.955573] [] (usb_add_hcd) from [] (usb_hcd_pci_probe+0x198/0x370) >> [ 1.963708] [] (usb_hcd_pci_probe) from [] (xhci_pci_probe+0x2c/0x11c) >> [ 1.972017] [] (xhci_pci_probe) from [] (pci_device_probe+0x84/0xd4) >> [ 1.980151] [] (pci_device_probe) from [] (driver_probe_device+0x1e0/0x2a8) >> [ 1.988891] [] (driver_probe_device) from [] (__driver_attach+0x8c/0x90) >> [ 1.997368] [] (__driver_attach) from [] (bus_for_each_dev+0x54/0x88) >> [ 2.005584] [] (bus_for_each_dev) from [] (bus_add_driver+0xe8/0x1f4) >> [ 2.013801] [] (bus_add_driver) from [] (driver_register+0x78/0xf4) >> [ 2.021844] [] (driver_register) from [] (do_one_initcall+0x84/0x1d4) >> [ 2.030062] [] (do_one_initcall) from [] (kernel_init_freeable+0x11c/0x1e8) >> [ 2.038809] [] (kernel_init_freeable) from [] (kernel_init+0x8/0xec) >> [ 2.046942] [] (kernel_init) from [] (ret_from_fork+0x14/0x3c) >> [ 2.054548] Code: e1a04002 e58d100c e1a02001 e1a0a000 (e5987004) >> [ 2.060713] ---[ end trace d8caeed57a0ae8f6 ]--- >> >> I have not had the time to dig much deeper, so I figured I would send >> this report for wider review. I am always willing to re-test any fixes >> that may come about from this discussion, just let me know! > > This looks a lot like something I've recently fixed: > > https://lkml.org/lkml/2015/11/23/388 > > Can you give it a go and let me know if that helps? I added this patch on top of Russell's tree (for-next) and pushed it out for kernelci.org to build and boot test. I can confirm it resolves[1] the issues reported above. The patch also landed in -next, so next-20151203[2] is regression free as well. Thanks for the quick responses. Cheers, Tyler [1] http://kernelci.org/boot/all/job/tbaker/kernel/v4.4-rc1-16-g78ed6b39a36e/ [2] http://kernelci.org/boot/all/job/next/kernel/next-20151203/
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0365cbb..a5f5843 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -797,6 +797,7 @@ config ARCH_VIRT bool "Dummy Virtual Machine" if ARCH_MULTI_V7 select ARM_AMBA select ARM_GIC + select ARM_GIC_V2M if PCI_MSI select ARM_GIC_V3 select ARM_PSCI select HAVE_ARM_ARCH_TIMER
Modern qemu includes GICv2m support for both 64 and 32 bits, therefore 32-bit guests may also use MSI. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> --- v1 => v2: - Rebased on top of 4.4rc1. msi.h is already added by 0ab089c. --- arch/arm/Kconfig | 1 + 1 file changed, 1 insertion(+)