[Bug 112222] New: [CI][BAT]igt at i915_selftest@live_hugepages - dmesg-warn - WARNING: possible recursive locking detected, acquire lock:slab_alloc.constprop, holding lock: kmem_cache_shutdown
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Nov 7 06:32:00 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=112222
Bug ID: 112222
Summary: [CI][BAT]igt at i915_selftest@live_hugepages - dmesg-warn
- WARNING: possible recursive locking detected,
acquire lock:slab_alloc.constprop, holding lock:
kmem_cache_shutdown
Product: DRI
Version: DRI git
Hardware: Other
OS: All
Status: NEW
Severity: not set
Priority: not set
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: lakshminarayana.vudum at intel.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7273/fi-icl-u3/igt@i915_selftest@live_hugepages.html
<4> [538.454227] ============================================
<4> [538.454229] WARNING: possible recursive locking detected
<4> [538.454232] 5.4.0-rc6-CI-CI_DRM_7273+ #1 Tainted: G U
<4> [538.454234] --------------------------------------------
<4> [538.454236] i915_selftest/5387 is trying to acquire lock:
<4> [538.454238] ffff88849e003e58 (&(&n->list_lock)->rlock){-.-.}, at:
___slab_alloc.constprop.90+0x122/0x7a0
<4> [538.454248]
but task is already holding lock:
<4> [538.454250] ffff888498269258 (&(&n->list_lock)->rlock){-.-.}, at:
__kmem_cache_shutdown+0x74/0x3d0
<4> [538.454253]
other info that might help us debug this:
<4> [538.454255] Possible unsafe locking scenario:
<4> [538.454257] CPU0
<4> [538.454258] ----
<4> [538.454259] lock(&(&n->list_lock)->rlock);
<4> [538.454261] lock(&(&n->list_lock)->rlock);
<4> [538.454263]
*** DEADLOCK ***
<4> [538.454265] May be due to missing lock nesting notation
<4> [538.454267] 3 locks held by i915_selftest/5387:
<4> [538.454269] #0: ffffffff8223b670 (cpu_hotplug_lock.rw_sem){++++}, at:
kmem_cache_destroy+0x5b/0x290
<4> [538.454274] #1: ffffffff8225e7c0 (slab_mutex){+.+.}, at:
kmem_cache_destroy+0x69/0x290
<4> [538.454278] #2: ffff888498269258 (&(&n->list_lock)->rlock){-.-.}, at:
__kmem_cache_shutdown+0x74/0x3d0
<4> [538.454281]
stack backtrace:
<4> [538.454285] CPU: 0 PID: 5387 Comm: i915_selftest Tainted: G U
5.4.0-rc6-CI-CI_DRM_7273+ #1
<4> [538.454287] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS
ICLSFWR1.R00.3183.A00.1905020411 05/02/2019
<4> [538.454289] Call Trace:
<4> [538.454296] dump_stack+0x67/0x9b
<4> [538.454301] __lock_acquire+0x10b3/0x15d0
<4> [538.454307] lock_acquire+0xa7/0x1c0
<4> [538.454311] ? ___slab_alloc.constprop.90+0x122/0x7a0
<4> [538.454314] ? __kmem_cache_shutdown+0x155/0x3d0
<4> [538.454318] _raw_spin_lock+0x2a/0x40
<4> [538.454322] ? ___slab_alloc.constprop.90+0x122/0x7a0
<4> [538.454326] ___slab_alloc.constprop.90+0x122/0x7a0
<4> [538.454329] ? __kmem_cache_shutdown+0x155/0x3d0
<4> [538.454333] ? cpumask_next_and+0x19/0x20
<4> [538.454336] ? smp_call_function_many+0x60/0x250
<4> [538.454339] ? __kmem_cache_shutdown+0x155/0x3d0
<4> [538.454341] ? __kmem_cache_shutdown+0x155/0x3d0
<4> [538.454345] ? __slab_alloc.isra.84.constprop.89+0x3d/0x70
<4> [538.454348] __slab_alloc.isra.84.constprop.89+0x3d/0x70
<4> [538.454352] __kmalloc+0x2b1/0x320
<4> [538.454355] __kmem_cache_shutdown+0x155/0x3d0
<4> [538.454358] ? kmem_cache_destroy+0x69/0x290
<4> [538.454362] shutdown_cache+0x10/0x1b0
<4> [538.454365] kmem_cache_destroy+0x27a/0x290
<4> [538.454466] i915_globals_exit+0x30/0xf47 [i915]
<4> [538.454472] __x64_sys_delete_module+0x115/0x1d0
<4> [538.454476] ? trace_hardirqs_off_thunk+0x1a/0x20
<4> [538.454479] ? do_syscall_64+0xd/0x210
<4> [538.454481] do_syscall_64+0x4f/0x210
<4> [538.454485] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [538.454488] RIP: 0033:0x7f88121171b7
<4> [538.454492] Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff
c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48
<4> [538.454495] RSP: 002b:00007ffc7e67a408 EFLAGS: 00000206 ORIG_RAX:
00000000000000b0
<4> [538.454498] RAX: ffffffffffffffda RBX: 00000000ffffffe7 RCX:
00007f88121171b7
<4> [538.454500] RDX: 000055973e076010 RSI: 0000000000000800 RDI:
000055973e0ab828
<4> [538.454502] RBP: 000055973e0ab7c0 R08: 00007f8812a5b300 R09:
0000000000000000
<4> [538.454504] R10: 00007f8812193cc0 R11: 0000000000000206 R12:
00007ffc7e67a450
<4> [538.454505] R13: 00007f8812a5b280 R14: 000055973e0ad000 R15:
0000000000000000
<3> [538.454519]
=============================================================================
<3> [538.454523] BUG i915_request (Tainted: G U ): Objects
remaining in i915_request on __kmem_cache_shutdown()
<3> [538.454526]
-----------------------------------------------------------------------------
<3> [538.454530] INFO: Slab 0x00000000a190acd8 objects=28 used=1
fp=0x00000000b5ba6258 flags=0x8000000000010200
<4> [538.454534] CPU: 0 PID: 5387 Comm: i915_selftest Tainted: G BU
5.4.0-rc6-CI-CI_DRM_7273+ #1
<4> [538.454537] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS
ICLSFWR1.R00.3183.A00.1905020411 05/02/2019
<4> [538.454540] Call Trace:
<4> [538.454545] dump_stack+0x67/0x9b
<4> [538.454551] slab_err+0xa8/0xd0
<4> [538.454559] ? __slab_alloc.isra.84.constprop.89+0x62/0x70
<4> [538.454564] ? __kmalloc+0x248/0x320
<4> [538.454569] __kmem_cache_shutdown+0x173/0x3d0
<4> [538.454574] ? kmem_cache_destroy+0x69/0x290
<4> [538.454580] shutdown_cache+0x10/0x1b0
<4> [538.454585] kmem_cache_destroy+0x27a/0x290
<4> [538.454677] i915_globals_exit+0x30/0xf47 [i915]
<4> [538.454683] __x64_sys_delete_module+0x115/0x1d0
<4> [538.454688] ? trace_hardirqs_off_thunk+0x1a/0x20
<4> [538.454692] ? do_syscall_64+0xd/0x210
<4> [538.454696] do_syscall_64+0x4f/0x210
<4> [538.454700] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [538.454704] RIP: 0033:0x7f88121171b7
<4> [538.454707] Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff
c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48
<4> [538.454711] RSP: 002b:00007ffc7e67a408 EFLAGS: 00000206 ORIG_RAX:
00000000000000b0
<4> [538.454714] RAX: ffffffffffffffda RBX: 00000000ffffffe7 RCX:
00007f88121171b7
<4> [538.454717] RDX: 000055973e076010 RSI: 0000000000000800 RDI:
000055973e0ab828
<4> [538.454720] RBP: 000055973e0ab7c0 R08: 00007f8812a5b300 R09:
0000000000000000
<4> [538.454723] R10: 00007f8812193cc0 R11: 0000000000000206 R12:
00007ffc7e67a450
<4> [538.454725] R13: 00007f8812a5b280 R14: 000055973e0ad000 R15:
0000000000000000
<3> [538.454738] INFO: Object 0x0000000062b0583e @offset=24256
<3> [538.454834] INFO: Allocated in __i915_request_create+0x5a/0x4a0 [i915]
age=6253 cpu=6 pid=2919
<3> [538.454840] __slab_alloc.isra.84.constprop.89+0x3d/0x70
<3> [538.454844] kmem_cache_alloc+0x24a/0x2a0
<3> [538.454937] __i915_request_create+0x5a/0x4a0 [i915]
<3> [538.455005] heartbeat+0x2f4/0x600 [i915]
<3> [538.455011] process_one_work+0x26a/0x620
<3> [538.455014] worker_thread+0x37/0x380
<3> [538.455019] kthread+0x119/0x130
<3> [538.455022] ret_from_fork+0x24/0x50
<3> [538.455123] INFO: Freed in i915_request_retire+0x490/0x8c0 [i915] age=7277
cpu=5 pid=5377
<3> [538.455128] kmem_cache_free+0x31f/0x390
<3> [538.455165] i915_request_retire+0x490/0x8c0 [i915]
<3> [538.455165] intel_gt_retire_requests_timeout+0x173/0x540 [i915]
<3> [538.455165] retire_work_handler+0x12/0x40 [i915]
<3> [538.455165] process_one_work+0x26a/0x620
<3> [538.455165] worker_thread+0x37/0x380
<3> [538.455165] kthread+0x119/0x130
<3> [538.455165] ret_from_fork+0x24/0x50
<3> [538.455491] kmem_cache_destroy i915_request: Slab cache still has objects
<4> [538.455495] CPU: 0 PID: 5387 Comm: i915_selftest Tainted: G BU
5.4.0-rc6-CI-CI_DRM_7273+ #1
<4> [538.455499] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS
ICLSFWR1.R00.3183.A00.1905020411 05/02/2019
<4> [538.455501] Call Trace:
<4> [538.455507] dump_stack+0x67/0x9b
<4> [538.455512] kmem_cache_destroy+0x223/0x290
<4> [538.455639] i915_globals_exit+0x30/0xf47 [i915]
<4> [538.455654] __x64_sys_delete_module+0x115/0x1d0
<4> [538.455663] ? trace_hardirqs_off_thunk+0x1a/0x20
<4> [538.455671] ? do_syscall_64+0xd/0x210
<4> [538.455679] do_syscall_64+0x4f/0x210
<4> [538.455687] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [538.455693] RIP: 0033:0x7f88121171b7
<4> [538.455700] Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff
c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48
<4> [538.455707] RSP: 002b:00007ffc7e67a408 EFLAGS: 00000206 ORIG_RAX:
00000000000000b0
<4> [538.455717] RAX: ffffffffffffffda RBX: 00000000ffffffe7 RCX:
00007f88121171b7
<4> [538.455723] RDX: 000055973e076010 RSI: 0000000000000800 RDI:
000055973e0ab828
<4> [538.455730] RBP: 000055973e0ab7c0 R08: 00007f8812a5b300 R09:
0000000000000000
<4> [538.455734] R10: 00007f8812193cc0 R11: 0000000000000206 R12:
00007ffc7e67a450
<4> [538.455737] R13: 00007f8812a5b280 R14: 000055973e0ad000 R15:
0000000000000000
<6> [538.603799] [IGT] i915_selftest: exiting, ret=0
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