[Intel-gfx] Memory corruption on hibernate/thaw with KMS

Bojan Smojver bojan at rexursive.com
Mon Oct 10 12:37:56 CEST 2011


On Mon, 2011-10-10 at 21:12 +1100, Bojan Smojver wrote:
> When I attempted to shut the machine down, it hung and I could see
> more
> kernel traces on the console. 

Tried again, but this time I used chvt 2; sleep 1; chvt 1 in the
sequence (this seems to agitate the bug faster). Indeed, got problems
quickly:
---------------------------
[  175.770300] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[  175.774934] IP: [<ffffffff81243038>] prio_tree_replace+0x4b/0x66
[  175.779296] PGD 1f88d0067 PUD 1f88af067 PMD 0 
[  175.783593] Oops: 0002 [#1] SMP 
[  175.788025] CPU 2 
[  175.788055] Modules linked in: fuse ppdev parport_pc lp parport sunrpc bnep bluetooth cpufreq_ondemand acpi_cpufreq freq_table mperf arc4 iwlagn snd_hda_codec_hdmi mac80211 snd_hda_codec_conexant uvcvideo snd_hda_intel snd_hda_codec videodev snd_hwdep media snd_seq qcserial v4l2_compat_ioctl32 usb_wwan snd_seq_device snd_pcm cfg80211 thinkpad_acpi snd_timer e1000e intel_ips iTCO_wdt iTCO_vendor_support joydev mxm_wmi snd_page_alloc snd i2c_i801 wmi rfkill pcspkr microcode soundcore ipv6 firewire_ohci sdhci_pci sdhci mmc_core firewire_core crc_itu_t i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[  175.810238] 
[  175.814616] Pid: 3763, comm: gcm-apply Not tainted 3.1.0-rc9+ #105 LENOVO 4313CTO/4313CTO
[  175.819031] RIP: 0010:[<ffffffff81243038>]  [<ffffffff81243038>] prio_tree_replace+0x4b/0x66
[  175.823327] RSP: 0018:ffff8801f8bbfce8  EFLAGS: 00010207
[  175.827099] RAX: ffff880229b84100 RBX: ffff8801f8bfb100 RCX: 0000000000000000
[  175.829260] RDX: ffff880229b84050 RSI: ffff880229b84100 RDI: ffff88022c12b318
[  175.831374] RBP: ffff8801f8bbfce8 R08: ffff880229b84100 R09: 0000000000000000
[  175.833440] R10: ffff8801f8bfbd48 R11: ffff8801f8bfbd10 R12: ffff880229b84050
[  175.835388] R13: ffff88022c12b318 R14: 0000000000000080 R15: 0000000000000000
[  175.837373] FS:  0000000000000000(0000) GS:ffff88023bd00000(0000) knlGS:0000000000000000
[  175.839407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.841446] CR2: 0000000000000010 CR3: 00000002085a1000 CR4: 00000000000006e0
[  175.843471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  175.845556] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  175.847616] Process gcm-apply (pid: 3763, threadinfo ffff8801f8bbe000, task ffff8801a864ae40)
[  175.849738] Stack:
[  175.851809]  ffff8801f8bbfd48 ffffffff8124327a ffff880229b84100 000000000000003d
[  175.853961]  000000000000003f 0000000000000000 000000000000003d ffff8801f8bfb0b0
[  175.856109]  ffff8801f8bfb100 ffff8801f8bfbd50 ffff88022c12b2f8 ffff8801f8bfbd48
[  175.858296] Call Trace:
[  175.860435]  [<ffffffff8124327a>] prio_tree_insert+0x16b/0x216
[  175.862599]  [<ffffffff810f12bf>] vma_prio_tree_insert+0x26/0x3c
[  175.864759]  [<ffffffff810fdc3f>] __vma_link_file+0x64/0x66
[  175.866899]  [<ffffffff810fe32e>] vma_link+0x75/0x95
[  175.869014]  [<ffffffff810ffd9a>] mmap_region+0x30a/0x46b
[  175.871114]  [<ffffffff81100194>] do_mmap_pgoff+0x299/0x2f3
[  175.873205]  [<ffffffff81100303>] sys_mmap_pgoff+0x115/0x164
[  175.875334]  [<ffffffff810126d0>] sys_mmap+0x22/0x24
[  175.877409]  [<ffffffff8149dd42>] system_call_fastpath+0x16/0x1b
[  175.879523] Code: 0f 0b 48 89 17 eb 16 48 89 4a 10 48 8b 4e 10 48 39 31 75 05 48 89 11 eb 04 48 89 51 08 48 8b 08 48 39 c1 74 0a 48 89 0a 48 8b 08 
[  175.879735]  89 51 10 48 8b 48 08 48 39 c1 74 0c 48 89 4a 08 48 8b 48 08 
[  175.884169] RIP  [<ffffffff81243038>] prio_tree_replace+0x4b/0x66
[  175.886469]  RSP <ffff8801f8bbfce8>
[  175.888702] CR2: 0000000000000010
[  176.196577] ---[ end trace 75df9d9a11de8acd ]---
[  178.928408] PM: Marking nosave pages: 000000000009e000 - 0000000000100000
[  178.928418] PM: Marking nosave pages: 00000000bb27c000 - 00000000bb282000
[  178.928422] PM: Marking nosave pages: 00000000bb35f000 - 00000000bb40f000
[  178.928430] PM: Marking nosave pages: 00000000bb46f000 - 00000000bb70f000
[  178.928446] PM: Marking nosave pages: 00000000bb717000 - 00000000bb71f000
[  178.928451] PM: Marking nosave pages: 00000000bb76c000 - 00000000bb7ff000
[  178.928457] PM: Marking nosave pages: 00000000bb800000 - 0000000100000000
[  178.930551] PM: Marking nosave pages: 00000001fc000000 - 0000000200000000
[  178.930855] PM: Basic memory bitmaps created
[  178.930859] PM: Syncing filesystems ... done.
[  179.006362] Freezing user space processes ... 
[  198.991114] Freezing of tasks failed after 20.00 seconds (1 tasks refusing to freeze, wq_busy=0):
[  198.991165] gcm-apply       D 0000000000000000     0  3763      1 0x00800084
[  198.991175]  ffff8801f8bbf860 0000000000000086 0000000000000000 ffff880100000000
[  198.991185]  ffff8801a864ae40 ffff8801f8bbffd8 ffff8801f8bbffd8 0000000000012d00
[  198.991194]  ffff88022e5d1720 ffff8801a864ae40 ffff8801a864b2c0 0000000100000002
[  198.991203] Call Trace:
[  198.991213]  [<ffffffff8149612f>] schedule+0x5a/0x5c
[  198.991218]  [<ffffffff81497514>] rwsem_down_failed_common+0xd3/0x105
[  198.991222]  [<ffffffff814975fc>] ? _raw_spin_unlock_irqrestore+0x17/0x19
[  198.991225]  [<ffffffff8149756d>] rwsem_down_read_failed+0x12/0x14
[  198.991231]  [<ffffffff8124a844>] call_rwsem_down_read_failed+0x14/0x30
[  198.991235]  [<ffffffff81496ca4>] ? down_read+0x21/0x25
[  198.991240]  [<ffffffff81091d21>] acct_collect+0x4a/0x182
[  198.991246]  [<ffffffff8105af7c>] do_exit+0x21e/0x722
[  198.991249]  [<ffffffff810591ac>] ? kmsg_dump+0x4b/0xd7
[  198.991253]  [<ffffffff8149876e>] oops_end+0xbc/0xc5
[  198.991256]  [<ffffffff8148ddad>] no_context+0x203/0x212
[  198.991259]  [<ffffffff8148df87>] __bad_area_nosemaphore+0x1cb/0x1ec
[  198.991263]  [<ffffffff8108a8cf>] ? search_module_extables+0x3f/0x69
[  198.991266]  [<ffffffff8148dfbb>] bad_area_nosemaphore+0x13/0x15
[  198.991270]  [<ffffffff8149a716>] do_page_fault+0x1b8/0x37e
[  198.991276]  [<ffffffff811242ae>] ? lookup_page_cgroup+0x28/0x3e
[  198.991282]  [<ffffffff8116ed27>] ? dquot_file_open+0x1b/0x3e
[  198.991285]  [<ffffffff81497c75>] page_fault+0x25/0x30
[  198.991289]  [<ffffffff81243038>] ? prio_tree_replace+0x4b/0x66
[  198.991292]  [<ffffffff8124327a>] prio_tree_insert+0x16b/0x216
[  198.991297]  [<ffffffff810f12bf>] vma_prio_tree_insert+0x26/0x3c
[  198.991302]  [<ffffffff810fdc3f>] __vma_link_file+0x64/0x66
[  198.991305]  [<ffffffff810fe32e>] vma_link+0x75/0x95
[  198.991309]  [<ffffffff810ffd9a>] mmap_region+0x30a/0x46b
[  198.991312]  [<ffffffff81100194>] do_mmap_pgoff+0x299/0x2f3
[  198.991315]  [<ffffffff81100303>] sys_mmap_pgoff+0x115/0x164
[  198.991322]  [<ffffffff810126d0>] sys_mmap+0x22/0x24
[  198.991326]  [<ffffffff8149dd42>] system_call_fastpath+0x16/0x1b
[  198.991330] 
[  198.991331] Restarting tasks ... done.
[  198.992966] PM: Basic memory bitmaps freed
[  198.996762] video LNXVIDEO:00: Restoring backlight state
[  204.166989] PM: Marking nosave pages: 000000000009e000 - 0000000000100000
[  204.166994] PM: Marking nosave pages: 00000000bb27c000 - 00000000bb282000
[  204.166997] PM: Marking nosave pages: 00000000bb35f000 - 00000000bb40f000
[  204.167001] PM: Marking nosave pages: 00000000bb46f000 - 00000000bb70f000
[  204.167014] PM: Marking nosave pages: 00000000bb717000 - 00000000bb71f000
[  204.167016] PM: Marking nosave pages: 00000000bb76c000 - 00000000bb7ff000
[  204.167021] PM: Marking nosave pages: 00000000bb800000 - 0000000100000000
[  204.168816] PM: Marking nosave pages: 00000001fc000000 - 0000000200000000
[  204.169060] PM: Basic memory bitmaps created
[  204.169061] PM: Syncing filesystems ... done.
[  204.242358] Freezing user space processes ... 
[  224.228897] Freezing of tasks failed after 20.00 seconds (3 tasks refusing to freeze, wq_busy=0):
[  224.230914] gnome-settings- D 0000000000000000     0  1716   1553 0x00800084
[  224.232935]  ffff88022a76bcd0 0000000000000086 0000000008100073 ffffea0000000000
[  224.234996]  ffff88022d059720 ffff88022a76bfd8 ffff88022a76bfd8 0000000000012d00
[  224.237043]  ffffffff81a0d020 ffff88022d059720 00000000817c1372 0000000100000001
[  224.239067] Call Trace:
[  224.241040]  [<ffffffff810f7b97>] ? pmd_offset+0x19/0x3f
[  224.243014]  [<ffffffff8149612f>] schedule+0x5a/0x5c
[  224.244981]  [<ffffffff81496843>] __mutex_lock_common+0x102/0x163
[  224.246946]  [<ffffffff814969dc>] __mutex_lock_slowpath+0x1b/0x1d
[  224.248883]  [<ffffffff81496970>] mutex_lock+0x23/0x37
[  224.250799]  [<ffffffff81055b52>] dup_mm+0x2da/0x488
[  224.252704]  [<ffffffff810566db>] copy_process+0x9b1/0x119c
[  224.254592]  [<ffffffff811fc8dd>] ? security_file_alloc+0x16/0x18
[  224.256473]  [<ffffffff81056ff0>] do_fork+0xef/0x22d
[  224.258329]  [<ffffffff81497596>] ? _raw_spin_lock+0xe/0x10
[  224.260184]  [<ffffffff811309b6>] ? path_put+0x1f/0x23
[  224.262024]  [<ffffffff81016336>] sys_clone+0x28/0x2a
[  224.263836]  [<ffffffff8149e063>] stub_clone+0x13/0x20
[  224.265631]  [<ffffffff8149dd42>] ? system_call_fastpath+0x16/0x1b
[  224.267423] gnome-settings- D ffff88022ab2c700     0  1721   1553 0x00800084
[  224.269227]  ffff8802286c3890 0000000000000086 0000000000000000 0000000000000000
[  224.271071]  ffff88022a6a2e40 ffff8802286c3fd8 ffff8802286c3fd8 0000000000012d00
[  224.272912]  ffff880219774560 ffff88022a6a2e40 0000000000000000 0000000000000000
[  224.274740] Call Trace:
[  224.276530]  [<ffffffff8149612f>] schedule+0x5a/0x5c
[  224.278320]  [<ffffffff81497514>] rwsem_down_failed_common+0xd3/0x105
[  224.280105]  [<ffffffff8149756d>] rwsem_down_read_failed+0x12/0x14
[  224.281874]  [<ffffffff8124a844>] call_rwsem_down_read_failed+0x14/0x30
[  224.283615]  [<ffffffff81497a2d>] ? restore_args+0x30/0x30
[  224.285331]  [<ffffffff81496ca4>] ? down_read+0x21/0x25
[  224.287026]  [<ffffffff81497a2d>] ? restore_args+0x30/0x30
[  224.288707]  [<ffffffff8149a723>] do_page_fault+0x1c5/0x37e
[  224.290389]  [<ffffffff81495e9e>] ? __schedule+0x63b/0x669
[  224.292060]  [<ffffffff81075d75>] ? __remove_hrtimer+0x5c/0x83
[  224.293718]  [<ffffffff8149612f>] ? schedule+0x5a/0x5c
[  224.295365]  [<ffffffff81497c75>] page_fault+0x25/0x30
[  224.297025]  [<ffffffff811377e4>] ? do_sys_poll+0x32c/0x389
[  224.298694]  [<ffffffff811377cf>] ? do_sys_poll+0x317/0x389
[  224.300340]  [<ffffffff811368f4>] ? poll_freewait+0xaa/0xaa
[  224.301971]  [<ffffffff811369c0>] ? __pollwait+0xcc/0xcc
[  224.303588]  [<ffffffff814975fc>] ? _raw_spin_unlock_irqrestore+0x17/0x19
[  224.305195]  [<ffffffff8105137e>] ? select_task_rq_fair+0x3cc/0x658
[  224.306785]  [<ffffffff8102ab9c>] ? _flat_send_IPI_mask+0x7b/0x84
[  224.308363]  [<ffffffff8105c41f>] ? current_fs_time+0x37/0x3e
[  224.309931]  [<ffffffff8113afec>] ? touch_atime+0xf8/0x113
[  224.311483]  [<ffffffff81082322>] ? get_futex_key+0x8e/0x274
[  224.313019]  [<ffffffff81082a62>] ? futex_wake+0xfe/0x110
[  224.314539]  [<ffffffff811559d4>] ? fsnotify+0x1eb/0x217
[  224.316046]  [<ffffffff811378e4>] sys_poll+0x51/0xbb
[  224.317618]  [<ffffffff8149dd42>] system_call_fastpath+0x16/0x1b
[  224.319148] gcm-apply       D 0000000000000000     0  3763      1 0x00800084
[  224.320644]  ffff8801f8bbf860 0000000000000086 0000000000000000 ffff880100000000
[  224.322166]  ffff8801a864ae40 ffff8801f8bbffd8 ffff8801f8bbffd8 0000000000012d00
[  224.323680]  ffff88022e5d1720 ffff8801a864ae40 ffff8801a864b2c0 0000000100000002
[  224.325181] Call Trace:
[  224.326640]  [<ffffffff8149612f>] schedule+0x5a/0x5c
[  224.328098]  [<ffffffff81497514>] rwsem_down_failed_common+0xd3/0x105
[  224.329552]  [<ffffffff814975fc>] ? _raw_spin_unlock_irqrestore+0x17/0x19
[  224.330990]  [<ffffffff8149756d>] rwsem_down_read_failed+0x12/0x14
[  224.332418]  [<ffffffff8124a844>] call_rwsem_down_read_failed+0x14/0x30
[  224.333831]  [<ffffffff81496ca4>] ? down_read+0x21/0x25
[  224.335243]  [<ffffffff81091d21>] acct_collect+0x4a/0x182
[  224.336650]  [<ffffffff8105af7c>] do_exit+0x21e/0x722
[  224.338052]  [<ffffffff810591ac>] ? kmsg_dump+0x4b/0xd7
[  224.339455]  [<ffffffff8149876e>] oops_end+0xbc/0xc5
[  224.340861]  [<ffffffff8148ddad>] no_context+0x203/0x212
[  224.342356]  [<ffffffff8148df87>] __bad_area_nosemaphore+0x1cb/0x1ec
[  224.342361]  [<ffffffff8108a8cf>] ? search_module_extables+0x3f/0x69
[  224.342366]  [<ffffffff8148dfbb>] bad_area_nosemaphore+0x13/0x15
[  224.342373]  [<ffffffff8149a716>] do_page_fault+0x1b8/0x37e
[  224.342378]  [<ffffffff811242ae>] ? lookup_page_cgroup+0x28/0x3e
[  224.342382]  [<ffffffff8116ed27>] ? dquot_file_open+0x1b/0x3e
[  224.342385]  [<ffffffff81497c75>] page_fault+0x25/0x30
[  224.342387]  [<ffffffff81243038>] ? prio_tree_replace+0x4b/0x66
[  224.342389]  [<ffffffff8124327a>] prio_tree_insert+0x16b/0x216
[  224.342392]  [<ffffffff810f12bf>] vma_prio_tree_insert+0x26/0x3c
[  224.342395]  [<ffffffff810fdc3f>] __vma_link_file+0x64/0x66
[  224.342397]  [<ffffffff810fe32e>] vma_link+0x75/0x95
[  224.342399]  [<ffffffff810ffd9a>] mmap_region+0x30a/0x46b
[  224.342402]  [<ffffffff81100194>] do_mmap_pgoff+0x299/0x2f3
[  224.342404]  [<ffffffff81100303>] sys_mmap_pgoff+0x115/0x164
[  224.342409]  [<ffffffff810126d0>] sys_mmap+0x22/0x24
[  224.342411]  [<ffffffff8149dd42>] system_call_fastpath+0x16/0x1b
[  224.342414] 
[  224.342414] Restarting tasks ... done.
[  224.344753] PM: Basic memory bitmaps freed
[  224.349953] video LNXVIDEO:00: Restoring backlight state
---------------------------

So, at first glance, I would say the patch didn't fix it. Let me repeat
my tests using nomodeset.

-- 
Bojan




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