| Summary: | [CI][SNB,HSW,APL,KBL] igt@kms_cursor_crc@cursor-size-change - dmesg-ward - lock dep | ||
|---|---|---|---|
| Product: | DRI | Reporter: | Marta Löfstedt <marta.lofstedt> |
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> |
| Status: | CLOSED DUPLICATE | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> |
| Severity: | normal | ||
| Priority: | high | CC: | intel-gfx-bugs |
| Version: | DRI git | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | ReadyForDev | ||
| i915 platform: | BXT, HSW, KBL, SNB | i915 features: | GEM/Other |
Same cpuhp issue as the others. (In reply to Chris Wilson from comment #1) > Same cpuhp issue as the others. Agreed, I will duplicate it. *** This bug has been marked as a duplicate of bug 102886 *** |
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On CI_DRM_3132 igt@kms_cursor_crc@cursor-size-change was caught with lock-dep an all shards: [ 38.188901] ====================================================== [ 38.188905] WARNING: possible circular locking dependency detected [ 38.188910] 4.14.0-rc2-CI-CI_DRM_3132+ #1 Tainted: G U [ 38.188914] ------------------------------------------------------ [ 38.188918] kms_cursor_crc/1396 is trying to acquire lock: [ 38.188921] (&dev->struct_mutex){+.+.}, at: [<ffffffffa01af651>] i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.189013] but task is already holding lock: [ 38.189017] (&mm->mmap_sem){++++}, at: [<ffffffff8104ab7d>] __do_page_fault+0x10d/0x570 [ 38.189029] which lock already depends on the new lock. [ 38.189034] the existing dependency chain (in reverse order) is: [ 38.189039] -> #6 (&mm->mmap_sem){++++}: [ 38.189055] __lock_acquire+0x1420/0x15e0 [ 38.189061] lock_acquire+0xb0/0x200 [ 38.189069] __might_fault+0x68/0x90 [ 38.189077] _copy_to_user+0x23/0x70 [ 38.189084] filldir+0xa5/0x120 [ 38.189092] dcache_readdir+0xf9/0x170 [ 38.189099] iterate_dir+0x69/0x1a0 [ 38.189106] SyS_getdents+0xa5/0x140 [ 38.189114] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 38.189117] -> #5 (&sb->s_type->i_mutex_key#5){++++}: [ 38.189133] down_write+0x3b/0x70 [ 38.189139] handle_create+0xcb/0x1e0 [ 38.189145] devtmpfsd+0x139/0x180 [ 38.189150] kthread+0x152/0x190 [ 38.189156] ret_from_fork+0x27/0x40 [ 38.189159] -> #4 ((complete)&req.done){+.+.}: [ 38.189173] __lock_acquire+0x1420/0x15e0 [ 38.189180] lock_acquire+0xb0/0x200 [ 38.189185] wait_for_common+0x58/0x210 [ 38.189191] wait_for_completion+0x1d/0x20 [ 38.189196] devtmpfs_create_node+0x13d/0x160 [ 38.189204] device_add+0x5eb/0x620 [ 38.189212] device_create_groups_vargs+0xe0/0xf0 [ 38.189219] device_create+0x3a/0x40 [ 38.189224] msr_device_create+0x2b/0x40 [ 38.189230] cpuhp_invoke_callback+0xa3/0x840 [ 38.189235] cpuhp_thread_fun+0x7a/0x150 [ 38.189242] smpboot_thread_fn+0x18a/0x280 [ 38.189246] kthread+0x152/0x190 [ 38.189253] ret_from_fork+0x27/0x40 [ 38.189256] -> #3 (cpuhp_state){+.+.}: [ 38.189268] __lock_acquire+0x1420/0x15e0 [ 38.189274] lock_acquire+0xb0/0x200 [ 38.189280] cpuhp_issue_call+0x10b/0x170 [ 38.189286] __cpuhp_setup_state_cpuslocked+0x134/0x2a0 [ 38.189292] __cpuhp_setup_state+0x46/0x60 [ 38.189298] page_writeback_init+0x43/0x67 [ 38.189306] pagecache_init+0x3d/0x42 [ 38.189313] start_kernel+0x3a8/0x3fc [ 38.189320] x86_64_start_reservations+0x2a/0x2c [ 38.189327] x86_64_start_kernel+0x6d/0x70 [ 38.189335] verify_cpu+0x0/0xfb [ 38.189338] -> #2 (cpuhp_state_mutex){+.+.}: [ 38.189351] __lock_acquire+0x1420/0x15e0 [ 38.189357] lock_acquire+0xb0/0x200 [ 38.189363] __mutex_lock+0x86/0x9b0 [ 38.189368] mutex_lock_nested+0x1b/0x20 [ 38.189374] __cpuhp_setup_state_cpuslocked+0x52/0x2a0 [ 38.189380] __cpuhp_setup_state+0x46/0x60 [ 38.189384] page_alloc_init+0x28/0x30 [ 38.189391] start_kernel+0x145/0x3fc [ 38.189398] x86_64_start_reservations+0x2a/0x2c [ 38.189404] x86_64_start_kernel+0x6d/0x70 [ 38.189411] verify_cpu+0x0/0xfb [ 38.189414] -> #1 (cpu_hotplug_lock.rw_sem){++++}: [ 38.189426] __lock_acquire+0x1420/0x15e0 [ 38.189432] lock_acquire+0xb0/0x200 [ 38.189437] cpus_read_lock+0x3d/0xb0 [ 38.189446] stop_machine+0x1c/0x40 [ 38.189520] i915_gem_set_wedged+0x1a/0x20 [i915] [ 38.189573] i915_reset+0xb9/0x230 [i915] [ 38.189625] i915_reset_device+0x1f6/0x260 [i915] [ 38.189677] i915_handle_error+0x2d8/0x430 [i915] [ 38.189755] hangcheck_declare_hang+0xd3/0xf0 [i915] [ 38.189828] i915_hangcheck_elapsed+0x262/0x2d0 [i915] [ 38.189836] process_one_work+0x233/0x660 [ 38.189842] worker_thread+0x4e/0x3b0 [ 38.189846] kthread+0x152/0x190 [ 38.189853] ret_from_fork+0x27/0x40 [ 38.189856] -> #0 (&dev->struct_mutex){+.+.}: [ 38.189869] check_prev_add+0x430/0x840 [ 38.189875] __lock_acquire+0x1420/0x15e0 [ 38.189881] lock_acquire+0xb0/0x200 [ 38.189886] __mutex_lock+0x86/0x9b0 [ 38.189892] mutex_lock_interruptible_nested+0x1b/0x20 [ 38.189957] i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.190022] i915_gem_fault+0x209/0x650 [i915] [ 38.190030] __do_fault+0x1e/0x80 [ 38.190038] __handle_mm_fault+0x81f/0xed0 [ 38.190045] handle_mm_fault+0x156/0x300 [ 38.190050] __do_page_fault+0x27c/0x570 [ 38.190055] do_page_fault+0x28/0x250 [ 38.190062] page_fault+0x22/0x30 [ 38.190065] other info that might help us debug this: [ 38.190071] Chain exists of: &dev->struct_mutex --> &sb->s_type->i_mutex_key#5 --> &mm->mmap_sem [ 38.190086] Possible unsafe locking scenario: [ 38.190090] CPU0 CPU1 [ 38.190093] ---- ---- [ 38.190095] lock(&mm->mmap_sem); [ 38.190101] lock(&sb->s_type->i_mutex_key#5); [ 38.190108] lock(&mm->mmap_sem); [ 38.190114] lock(&dev->struct_mutex); [ 38.190119] *** DEADLOCK *** [ 38.190126] 1 lock held by kms_cursor_crc/1396: [ 38.190129] #0: (&mm->mmap_sem){++++}, at: [<ffffffff8104ab7d>] __do_page_fault+0x10d/0x570 [ 38.190140] stack backtrace: [ 38.190148] CPU: 3 PID: 1396 Comm: kms_cursor_crc Tainted: G U 4.14.0-rc2-CI-CI_DRM_3132+ #1 [ 38.190153] Hardware name: /NUC7i5BNB, BIOS BNKBL357.86A.0048.2017.0704.1415 07/04/2017 [ 38.190156] Call Trace: [ 38.190165] dump_stack+0x68/0x9f [ 38.190174] print_circular_bug+0x235/0x3c0 [ 38.190182] ? lockdep_init_map_crosslock+0x20/0x20 [ 38.190188] check_prev_add+0x430/0x840 [ 38.190198] ? rcu_read_lock_sched_held+0x28/0x90 [ 38.190263] ? i915_gem_fault+0x201/0x650 [i915] [ 38.190272] __lock_acquire+0x1420/0x15e0 [ 38.190278] ? __lock_acquire+0x1420/0x15e0 [ 38.190285] ? lockdep_init_map_crosslock+0x20/0x20 [ 38.190294] lock_acquire+0xb0/0x200 [ 38.190355] ? i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.190363] __mutex_lock+0x86/0x9b0 [ 38.190422] ? i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.190478] ? i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.190489] mutex_lock_interruptible_nested+0x1b/0x20 [ 38.190495] ? mutex_lock_interruptible_nested+0x1b/0x20 [ 38.190550] i915_mutex_lock_interruptible+0x51/0x130 [i915] [ 38.190559] ? __pm_runtime_resume+0x5b/0x90 [ 38.190620] i915_gem_fault+0x209/0x650 [i915] [ 38.190631] __do_fault+0x1e/0x80 [ 38.190639] __handle_mm_fault+0x81f/0xed0 [ 38.190651] handle_mm_fault+0x156/0x300 [ 38.190657] __do_page_fault+0x27c/0x570 [ 38.190664] do_page_fault+0x28/0x250 [ 38.190672] page_fault+0x22/0x30 [ 38.190678] RIP: 0033:0x7ff31db65080 [ 38.190682] RSP: 002b:00007ffee18cdb70 EFLAGS: 00010206 [ 38.190688] RAX: 00007ff31ad1e000 RBX: 000000000000001f RCX: 00007ff31ad1f000 [ 38.190693] RDX: 0000000000000f80 RSI: 00000000ff000000 RDI: 00000000ff000000 [ 38.190697] RBP: 0000000000000300 R08: 00007ff31ad1e000 R09: 0000000000001000 [ 38.190701] R10: 00000000000002ff R11: 0000000000001000 R12: 0000000000000400 [ 38.190705] R13: 00000000ff000000 R14: 0000000000000400 R15: 00007ff31ad1e000 Full data: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3132/shard-snb1/igt@kms_cursor_crc@cursor-size-change.html https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3132/shard-hsw3/igt@kms_cursor_crc@cursor-size-change.html https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3132/shard-apl6/igt@kms_cursor_crc@cursor-size-change.html https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3132/shard-kbl1/igt@kms_cursor_crc@cursor-size-change.html