igt@i915_selftest@live@gt_contexts - dmesg-warn - WARNING: bad unlock balance detected!
<6> [240.469170] i915: Running gt_contexts
<6> [240.469219] i915: Running intel_context_live_selftests/live_context_size
<6> [240.489044] i915: Running intel_context_live_selftests/live_active_context
<6> [240.499869] i915: Running intel_context_live_selftests/live_remote_context
<7> [240.510059] intel_gt_set_wedged called from i915_driver_remove+0x55/0x110 [i915]
<7> [240.558070] intel_gt_set_wedged called from intel_gt_set_wedged_on_init+0x15/0x20 [i915]
<4> [240.600674] i915: probe of 0000:00:02.0 failed with error -25
<4> [240.696543]
<4> [240.696553] =====================================
<4> [240.696559] WARNING: bad unlock balance detected!
<4> [240.696566] 5.7.0-rc1-CI-CI_DRM_8294+ #1 Tainted: G U
<4> [240.696573] -------------------------------------
<4> [240.696579] i915_selftest/1318 is trying to release lock (&sb->s_type->i_mutex_key) at:
<4> [240.696594] [<ffffffff812c0afc>] simple_recursive_removal+0x16c/0x2b0
<4> [240.696601] but there are no more locks to release!
<4> [240.696606]
other info that might help us debug this:
<4> [240.696613] 4 locks held by i915_selftest/1318:
<4> [240.696618] #0: ffffffff82651770 ((module_notify_list).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x25/0x60
<4> [240.696635] #1: ffffffff82658168 (event_mutex){+.+.}-{3:3}, at: trace_module_notify+0x22/0x1a0
<4> [240.696648] #2: ffffffff82657588 (trace_types_lock){+.+.}-{3:3}, at: trace_module_notify+0x30/0x1a0
<4> [240.696660] #3: ffffffff82657bb0 (trace_event_sem){+.+.}-{3:3}, at: trace_module_notify+0x4c/0x1a0
<4> [240.696671]
stack backtrace:
<4> [240.696680] CPU: 1 PID: 1318 Comm: i915_selftest Tainted: G U 5.7.0-rc1-CI-CI_DRM_8294+ #1
<4> [240.696690] Hardware name: Dell Inc. OptiPlex 745 /0GW726, BIOS 2.3.1 05/21/2007
<4> [240.696700] Call Trace:
<4> [240.696710] dump_stack+0x71/0x9b
<4> [240.696718] lock_release+0x20b/0x2b0
<4> [240.696726] up_write+0x12/0x130
<4> [240.696732] simple_recursive_removal+0x16c/0x2b0
<4> [240.696741] ? default_write_file+0x10/0x10
<4> [240.696749] tracefs_remove+0x3b/0x60
<4> [240.696755] remove_event_file_dir+0x70/0x110
<4> [240.696763] event_remove+0xf9/0x120
<4> [240.696770] trace_module_notify+0x82/0x1a0
<4> [240.696778] ? __x64_sys_delete_module+0x115/0x1e0
<4> [240.696786] notifier_call_chain+0x34/0x90
<4> [240.696794] blocking_notifier_call_chain+0x3f/0x60
<4> [240.696802] __x64_sys_delete_module+0x129/0x1e0
<4> [240.696810] ? trace_hardirqs_off_thunk+0x1a/0x1c
<4> [240.696817] ? do_syscall_64+0xd/0x220
<4> [240.696823] do_syscall_64+0x4f/0x220
<4> [240.696831] entry_SYSCALL_64_after_hwframe+0x49/0xb3
<4> [240.696839] RIP: 0033:0x7f156a33b1b7
<4> [240.696846] 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> [240.696862] RSP: 002b:00007ffd8adfd0e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
<4> [240.696872] RAX: ffffffffffffffda RBX: 00000000ffffffe7 RCX: 00007f156a33b1b7
<4> [240.696880] RDX: 000055bd0214d010 RSI: 0000000000000800 RDI: 000055bd02185518
<4> [240.696888] RBP: 000055bd021854b0 R08: 00007f156ac90e40 R09: 0000000000000000
<4> [240.696895] R10: 00007f156a3b7cc0 R11: 0000000000000206 R12: 00007ffd8adfd130
<4> [240.696903] R13: 00007f156ac90dc0 R14: 000055bd02186940 R15: 0000000000000000