bisecting fixing commit since dda0e2920330128e0dbdeb11c8f25031aa40b11c
building syzkaller on 17a986e54c507287c078a70fa9eea0be9f191f84
testing commit dda0e2920330128e0dbdeb11c8f25031aa40b11c with gcc (GCC) 8.1.0
kernel signature: 197f0e0aaeedfd45cf84fee488882d82149e953b0941dec7f4afee5a2a0e79be
run #0: crashed: WARNING in cancel_delayed_work_sync
run #1: crashed: WARNING in cancel_delayed_work_sync
run #2: crashed: BUG: corrupted list in pm_qos_update_target
run #3: crashed: WARNING in cancel_delayed_work_sync
run #4: crashed: WARNING in pm_qos_remove_request
run #5: crashed: WARNING in cancel_delayed_work_sync
run #6: crashed: WARNING in cancel_delayed_work_sync
run #7: crashed: WARNING in cancel_delayed_work_sync
run #8: crashed: BUG: unable to handle kernel paging request in pm_qos_update_target
run #9: crashed: WARNING in pm_qos_remove_request
testing current HEAD 033c4ea49a4ba7a2b13aabf3ec755557924a9cda
testing commit 033c4ea49a4ba7a2b13aabf3ec755557924a9cda with gcc (GCC) 8.1.0
kernel signature: 95b62a9d7fd9833d933fb1f4d0471fc0c70d27070e00705e715c5386a7b6e67e
run #0: crashed: WARNING in pm_qos_remove_request
run #1: crashed: WARNING in pm_qos_remove_request
run #2: crashed: WARNING in pm_qos_remove_request
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
revisions tested: 2, total time: 33m54.987121132s (build: 18m59.042761622s, test: 13m52.562662321s)
the crash still happens on HEAD
commit msg: Linux 4.19.122
crash: WARNING in pm_qos_remove_request
bond0 (unregistering): Releasing backup interface bond_slave_1
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
------------[ cut here ]------------
pm_qos_remove_request() called for unknown object
WARNING: CPU: 0 PID: 25936 at kernel/power/qos.c:535 pm_qos_remove_request+0x22a/0x350 kernel/power/qos.c:535
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 25936 Comm: syz-executor719 Not tainted 4.19.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x123/0x177 lib/dump_stack.c:118
 panic+0x1cd/0x375 kernel/panic.c:186
 __warn.cold.8+0x1b/0x3e kernel/panic.c:541
 report_bug+0x1a4/0x200 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x200/0x350 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
RIP: 0010:pm_qos_remove_request+0x22a/0x350 kernel/power/qos.c:535
Code: 04 24 48 85 c0 75 bb 65 ff 0d f2 c8 b5 7e 0f 85 47 fe ff ff e8 9a 33 b4 ff e9 3d fe ff ff 48 c7 c7 a0 3b 2a 87 e8 89 8e ec ff <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 c3 65 ff 05 bd
RSP: 0018:ffff88808f9a7b88 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88809b16f240 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffffff87677900 RDI: ffffffff8a183960
RBP: ffff88808f9a7bb8 R08: ffffed1015d45079 R09: ffffed1015d45078
R10: ffffed1015d45078 R11: ffff8880aea283c7 R12: 1ffff11011f34f81
R13: ffff88809b16f268 R14: ffff8880a04a2a00 R15: 0000000000004112
 snd_pcm_hw_free sound/core/pcm_native.c:822 [inline]
 snd_pcm_common_ioctl+0xa9a/0x1b30 sound/core/pcm_native.c:2896
 snd_pcm_ioctl+0x66/0xb0 sound/core/pcm_native.c:2975
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0x196/0x10c0 fs/ioctl.c:688
 ksys_ioctl+0x62/0x90 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6e/0xb0 fs/ioctl.c:710
 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x44a629
Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 7b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1b7e9c2db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 000000000044a629
RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000005
RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c
R13: 00007ffc37f7dd9f R14: 00007f1b7e9c39c0 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..