bisecting fixing commit since dbb5afad100a828c97e012c6106566d99f041db6
building syzkaller on ed7d41c582d6f194ff35353d8bfdf7681dc0718e
testing commit dbb5afad100a828c97e012c6106566d99f041db6 with gcc (GCC) 10.2.1 20210217
kernel signature: fb9f0da2ebbc2c7fcbc36753b88d794ee9af2ab407c0c86e98829652464468e2
all runs: crashed: WARNING in cpu_latency_qos_remove_request
testing current HEAD ad347abe4a9876b1f65f408ab467137e88f77eb4
testing commit ad347abe4a9876b1f65f408ab467137e88f77eb4 with gcc (GCC) 10.2.1 20210217
kernel signature: 50d7c814b3c3efa5e7e72a66b62301b1ca9084be7d5833e4f4908c6fb1254e84
all runs: crashed: WARNING in cpu_latency_qos_remove_request
revisions tested: 2, total time: 24m25.298894734s (build: 13m56.978968537s, test: 10m0.313293523s)
the crash still happens on HEAD
commit msg: Merge tag 'trace-v5.13-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
crash: WARNING in cpu_latency_qos_remove_request
------------[ cut here ]------------
cpu_latency_qos_remove_request called for unknown object
WARNING: CPU: 0 PID: 21780 at kernel/power/qos.c:322 cpu_latency_qos_remove_request+0x41/0x60 kernel/power/qos.c:322
Modules linked in:
CPU: 1 PID: 21780 Comm: syz-executor.2 Not tainted 5.13.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:cpu_latency_qos_remove_request+0x41/0x60 kernel/power/qos.c:322
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 75 2b 48 81 7d 28 00 65 87 8a 74 17 48 c7 c6 00 6e ab 88 48 c7 c7 a0 6b ab 88 e8 3a e0 b6 06 <0f> 0b 5d c3 48 89 ef 5d e9 a2 fd ff ff c3 e8 5c ac 51 00 eb ce 66
RSP: 0018:ffffc90003007d48 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff89906cc0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff88fe16e0 RDI: fffff52000600f9b
RBP: ffff888147b4c040 R08: 0000000000000001 R09: ffff8880b9e2fec7
R10: ffffed10173c5fd8 R11: 6574616c5f757063 R12: 1ffff92000600fb6
R13: ffff888147b4c000 R14: ffff888147b4c1e4 R15: 0000000000004112
FS:  00007f7e30af1700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa491515718 CR3: 000000002ffbb000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 snd_pcm_hw_free sound/core/pcm_native.c:842 [inline]
 snd_pcm_common_ioctl+0x14af/0x2b30 sound/core/pcm_native.c:3219
 snd_pcm_ioctl+0x62/0xa0 sound/core/pcm_native.c:3302
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:1069 [inline]
 __se_sys_ioctl fs/ioctl.c:1055 [inline]
 __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:1055
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e30af1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000005
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffd34a886ff R14: 00007f7e30af1300 R15: 0000000000022000