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Red Hat Bugzilla – Attachment 951411 Details for
Bug 1155825
possible circular locking dependency detected __drm_modeset_lock_all
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log from deadlock
deadlock.log (text/plain), 21.83 KB, created by
Thomas Hellström
on 2014-10-28 14:48:57 UTC
(
hide
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Description:
log from deadlock
Filename:
MIME Type:
Creator:
Thomas Hellström
Created:
2014-10-28 14:48:57 UTC
Size:
21.83 KB
patch
obsolete
>[ 21.762282] >[ 21.763262] ====================================================== >[ 21.766527] [ INFO: possible circular locking dependency detected ] >[ 21.770135] 3.18.0-rc2 #1 Not tainted >[ 21.772022] ------------------------------------------------------- >[ 21.775999] Xorg/1276 is trying to acquire lock: >[ 21.778451] (&dev->mode_config.mutex){+.+.+.}, at: [<ffffffffa01b76a4>] __drm_modeset_lock_all+0x114/0x120 [drm] >[ 21.784823] >[ 21.784823] but task is already holding lock: >[ 21.787918] (crtc_ww_class_acquire){+.+.+.}, at: [<ffffffffa01b7721>] drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 21.794907] >[ 21.794907] which lock already depends on the new lock. >[ 21.794907] >[ 21.800317] >[ 21.800317] the existing dependency chain (in reverse order) is: >[ 21.805858] >-> #1 (crtc_ww_class_acquire){+.+.+.}: >[ 21.809739] [<ffffffff810c1b4b>] lock_acquire+0xbb/0x150 >[ 21.814232] [<ffffffffa01b6eed>] drm_modeset_acquire_init+0xed/0x160 [drm] >[ 21.819195] [<ffffffffa01b75ed>] __drm_modeset_lock_all+0x5d/0x120 [drm] >[ 21.824668] [<ffffffffa01b76c0>] drm_modeset_lock_all+0x10/0x30 [drm] >[ 21.829412] [<ffffffffa01aab00>] drm_mode_config_init+0x160/0x240 [drm] >[ 21.833914] [<ffffffffa029d54e>] vmw_kms_init+0x1e/0x70 [vmwgfx] >[ 21.837358] [<ffffffffa029f651>] vmw_driver_load+0x811/0xd60 [vmwgfx] >[ 21.841339] [<ffffffffa01a1705>] drm_dev_register+0xb5/0x110 [drm] >[ 21.845215] [<ffffffffa01a476f>] drm_get_pci_dev+0x8f/0x200 [drm] >[ 21.848578] [<ffffffffa029e515>] vmw_probe+0x15/0x20 [vmwgfx] >[ 21.852269] [<ffffffff813ed125>] local_pci_probe+0x45/0xa0 >[ 21.856108] [<ffffffff813ee509>] pci_device_probe+0xd9/0x130 >[ 21.859814] [<ffffffff814e14fd>] driver_probe_device+0x12d/0x3e0 >[ 21.863171] [<ffffffff814e1893>] __driver_attach+0xa3/0xb0 >[ 21.867164] [<ffffffff814df2fb>] bus_for_each_dev+0x6b/0xb0 >[ 21.870400] [<ffffffff814e0ebe>] driver_attach+0x1e/0x20 >[ 21.873581] [<ffffffff814e0a98>] bus_add_driver+0x188/0x260 >[ 21.877332] [<ffffffff814e2124>] driver_register+0x64/0xf0 >[ 21.880738] [<ffffffff813eca64>] __pci_register_driver+0x64/0x70 >[ 21.884828] [<ffffffffa01a49da>] drm_pci_init+0xfa/0x130 [drm] >[ 21.888059] [<ffffffffa02c6019>] 0xffffffffa02c6019 >[ 21.891184] [<ffffffff8100212c>] do_one_initcall+0xbc/0x200 >[ 21.895094] [<ffffffff81100e25>] load_module+0x1db5/0x2840 >[ 21.898257] [<ffffffff81101977>] SyS_init_module+0xc7/0x110 >[ 21.902994] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 21.906840] >-> #0 (&dev->mode_config.mutex){+.+.+.}: >[ 21.911989] [<ffffffff810c10ad>] __lock_acquire+0x187d/0x1b80 >[ 21.921687] [<ffffffff810c1b4b>] lock_acquire+0xbb/0x150 >[ 21.930909] [<ffffffff8177ecd7>] mutex_lock_nested+0x67/0x4d0 >[ 21.940501] [<ffffffffa01b76a4>] __drm_modeset_lock_all+0x114/0x120 [drm] >[ 21.951150] [<ffffffffa01b76c0>] drm_modeset_lock_all+0x10/0x30 [drm] >[ 21.962468] [<ffffffffa029ca0b>] vmw_du_crtc_cursor_move+0x5b/0xc0 [vmwgfx] >[ 21.973816] [<ffffffffa01a8f23>] drm_mode_cursor_common+0x263/0x360 [drm] >[ 21.985099] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 21.995810] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 22.005252] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 22.016457] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 22.027520] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 22.036665] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 22.045607] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 22.055112] >[ 22.055112] other info that might help us debug this: >[ 22.055112] >[ 22.066878] Possible unsafe locking scenario: >[ 22.066878] >[ 22.075944] CPU0 CPU1 >[ 22.083102] ---- ---- >[ 22.089403] lock(crtc_ww_class_acquire); >[ 22.096490] lock(&dev->mode_config.mutex); >[ 22.107427] lock(crtc_ww_class_acquire); >[ 22.117381] lock(&dev->mode_config.mutex); >[ 22.124686] >[ 22.124686] *** DEADLOCK *** >[ 22.124686] >[ 22.133774] 1 lock held by Xorg/1276: >[ 22.139215] #0: (crtc_ww_class_acquire){+.+.+.}, at: [<ffffffffa01b7721>] drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 22.154833] >[ 22.154833] stack backtrace: >[ 22.161838] CPU: 0 PID: 1276 Comm: Xorg Not tainted 3.18.0-rc2 #1 >[ 22.171086] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 10/01/2014 >[ 22.187270] ffffffff82688100 ffff880067a079b8 ffffffff817790b4 0000000000000000 >[ 22.198960] ffffffff82688100 ffff880067a07a08 ffffffff817747e9 ffff880077dbccf0 >[ 22.210798] ffff880067a07a68 0000000000000000 ffff880077dbccf0 0000000000000000 >[ 22.223472] Call Trace: >[ 22.227289] [<ffffffff817790b4>] dump_stack+0x4e/0x68 >[ 22.234944] [<ffffffff817747e9>] print_circular_bug+0x1fb/0x20c >[ 22.243914] [<ffffffff810c10ad>] __lock_acquire+0x187d/0x1b80 >[ 22.252939] [<ffffffff810c1b4b>] lock_acquire+0xbb/0x150 >[ 22.260886] [<ffffffffa01b76a4>] ? __drm_modeset_lock_all+0x114/0x120 [drm] >[ 22.271721] [<ffffffff8177ecd7>] mutex_lock_nested+0x67/0x4d0 >[ 22.280782] [<ffffffffa01b76a4>] ? __drm_modeset_lock_all+0x114/0x120 [drm] >[ 22.290918] [<ffffffff811d743b>] ? kmem_cache_alloc_trace+0x18b/0x190 >[ 22.301517] [<ffffffffa01b768e>] ? __drm_modeset_lock_all+0xfe/0x120 [drm] >[ 22.311466] [<ffffffffa01b76a4>] __drm_modeset_lock_all+0x114/0x120 [drm] >[ 22.322208] [<ffffffffa01b76c0>] drm_modeset_lock_all+0x10/0x30 [drm] >[ 22.331975] [<ffffffffa029ca0b>] vmw_du_crtc_cursor_move+0x5b/0xc0 [vmwgfx] >[ 22.342740] [<ffffffffa01a8f23>] drm_mode_cursor_common+0x263/0x360 [drm] >[ 22.352491] [<ffffffff810c1c80>] ? lock_release_non_nested+0xa0/0x300 >[ 22.362960] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 22.370821] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 22.380566] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 22.389520] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 22.398855] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 22.407839] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 22.417570] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 22.428119] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 22.436011] [<ffffffff810bf37d>] ? trace_hardirqs_on_caller+0xfd/0x1c0 >[ 22.445708] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 22.454703] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 22.465424] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 22.472971] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 25.163233] audit_printk_skb: 162 callbacks suppressed >[ 25.165337] audit: type=1400 audit(1414489507.231:66): apparmor="DENIED" operation="capable" profile="/usr/sbin/cupsd" pid=1687 comm="serial" capability=21 capname="sys_admin" >[ 240.522840] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 240.528260] Not tainted 3.18.0-rc2 #1 >[ 240.530078] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 240.533546] Xorg D ffff880037662220 0 1276 1228 0x00400004 >[ 240.536307] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 240.539312] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 240.542251] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 240.545262] Call Trace: >[ 240.546240] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 240.548547] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 240.550798] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 240.553107] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 240.555464] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 240.557748] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 240.560288] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 240.562772] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 240.565139] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 240.567623] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 240.569596] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 240.571974] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 240.574093] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 240.576315] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 240.578462] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 240.581057] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 240.583474] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 240.585533] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 240.587962] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 240.590111] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 240.592534] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 240.594404] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 240.596408] INFO: lockdep is turned off. >[ 256.071774] init: lightdm main process (1228) killed by KILL signal >[ 360.560453] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 360.562871] Not tainted 3.18.0-rc2 #1 >[ 360.564476] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 360.567298] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 360.569955] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 360.572874] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 360.575759] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 360.578559] Call Trace: >[ 360.579608] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 360.581914] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 360.584094] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 360.586397] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 360.588718] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 360.590957] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 360.593507] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 360.595945] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 360.598291] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 360.600756] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 360.602690] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 360.605061] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 360.607142] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 360.609335] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 360.611454] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 360.613812] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 360.616189] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 360.618174] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 360.620616] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 360.622699] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 360.625130] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 360.626944] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 360.628944] INFO: lockdep is turned off. >[ 480.590299] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 480.593824] Not tainted 3.18.0-rc2 #1 >[ 480.595400] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 480.598308] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 480.600968] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 480.603831] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 480.606766] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 480.609678] Call Trace: >[ 480.610632] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 480.612980] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 480.615191] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 480.617571] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 480.619956] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 480.622280] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 480.624844] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 480.627305] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 480.629750] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 480.632224] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 480.634235] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 480.636644] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 480.638762] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 480.641006] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 480.643166] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 480.645629] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 480.648012] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 480.650054] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 480.652502] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 480.654650] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 480.657121] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 480.658940] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 480.660961] INFO: lockdep is turned off. >[ 600.624027] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 600.626465] Not tainted 3.18.0-rc2 #1 >[ 600.628116] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 600.630974] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 600.633621] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 600.636610] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 600.639508] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 600.642394] Call Trace: >[ 600.643388] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 600.645694] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 600.647930] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 600.650262] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 600.652632] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 600.654947] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 600.657528] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 600.660020] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 600.662408] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 600.664909] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 600.666894] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 600.669271] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 600.671418] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 600.673668] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 600.675857] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 600.678271] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 600.680699] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 600.682742] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 600.685182] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 600.687357] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 600.689790] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 600.691651] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 600.693658] INFO: lockdep is turned off. >[ 720.658053] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 720.663358] Not tainted 3.18.0-rc2 #1 >[ 720.666239] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 720.669060] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 720.671704] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 720.674638] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 720.677620] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 720.680521] Call Trace: >[ 720.681492] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 720.683810] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 720.686050] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 720.688431] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 720.690775] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 720.693062] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 720.695644] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 720.698120] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 720.700518] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 720.702968] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 720.704956] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 720.707350] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 720.709481] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 720.711711] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 720.713978] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 720.716396] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 720.718815] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 720.720830] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 720.723253] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 720.725400] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 720.727839] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 720.729715] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 720.731774] INFO: lockdep is turned off. >[ 840.695892] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 840.699245] Not tainted 3.18.0-rc2 #1 >[ 840.701293] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 840.704177] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 840.706868] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 840.709749] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 840.712650] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 840.715579] Call Trace: >[ 840.716528] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 840.718891] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 840.721075] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 840.723442] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 840.725766] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 840.728066] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 840.730710] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 840.733154] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 840.735585] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 840.738052] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 840.740044] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 840.742466] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 840.744552] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 840.746821] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 840.748939] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 840.751400] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 840.753779] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 840.755840] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 840.758312] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 840.760449] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 840.762911] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 840.764734] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd >[ 840.766762] INFO: lockdep is turned off. >[ 960.729262] INFO: task Xorg:1276 blocked for more than 120 seconds. >[ 960.734717] Not tainted 3.18.0-rc2 #1 >[ 960.738244] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >[ 960.741686] Xorg D ffff880037662220 0 1276 1 0x00400004 >[ 960.744408] ffff880067a07b18 0000000000000002 ffff880077dbc440 ffff880067a07fd8 >[ 960.747310] 0000000000015200 0000000000015200 ffff880037662220 ffff880077dbc440 >[ 960.750219] 0000000000000000 ffff88007b1d7080 ffff8800684cb020 ffff8800684cb028 >[ 960.753141] Call Trace: >[ 960.754093] [<ffffffff8177cb11>] schedule_preempt_disabled+0x31/0x80 >[ 960.756464] [<ffffffff8177f855>] __ww_mutex_lock+0x195/0x870 >[ 960.758735] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 960.761135] [<ffffffffa01b7431>] ? drm_modeset_lock+0x41/0x130 [drm] >[ 960.763544] [<ffffffffa01b7431>] drm_modeset_lock+0x41/0x130 [drm] >[ 960.765859] [<ffffffffa01b6eed>] ? drm_modeset_acquire_init+0xed/0x160 [drm] >[ 960.768453] [<ffffffffa01b7721>] ? drm_modeset_lock_crtc+0x41/0xb0 [drm] >[ 960.770915] [<ffffffffa01b7742>] drm_modeset_lock_crtc+0x62/0xb0 [drm] >[ 960.773382] [<ffffffffa01a8d30>] drm_mode_cursor_common+0x70/0x360 [drm] >[ 960.775839] [<ffffffff811a940f>] ? might_fault+0x5f/0xb0 >[ 960.777827] [<ffffffffa01ac801>] drm_mode_cursor_ioctl+0x41/0x50 [drm] >[ 960.780257] [<ffffffffa019dc26>] drm_ioctl+0x1a6/0x640 [drm] >[ 960.782352] [<ffffffff810bb775>] ? cpuacct_account_field+0x5/0xc0 >[ 960.784635] [<ffffffffa019da80>] ? drm_getmap+0xf0/0xf0 [drm] >[ 960.786758] [<ffffffffa029e699>] vmw_generic_ioctl+0x179/0x280 [vmwgfx] >[ 960.789224] [<ffffffffa029e7d5>] vmw_unlocked_ioctl+0x15/0x20 [vmwgfx] >[ 960.791607] [<ffffffff81208a90>] do_vfs_ioctl+0x300/0x520 >[ 960.793635] [<ffffffff8117d60b>] ? context_tracking_user_exit+0xbb/0x120 >[ 960.796083] [<ffffffff810bf44d>] ? trace_hardirqs_on+0xd/0x10 >[ 960.798238] [<ffffffff810247f7>] ? syscall_trace_enter_phase2+0xa7/0x200 >[ 960.800696] [<ffffffff81208d31>] SyS_ioctl+0x81/0xa0 >[ 960.802509] [<ffffffff8178357d>] tracesys_phase2+0xd8/0xdd
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bug 1155825
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952292