bisecting fixing commit since dbb5afad100a828c97e012c6106566d99f041db6 building syzkaller on ed7d41c582d6f194ff35353d8bfdf7681dc0718e testing commit dbb5afad100a828c97e012c6106566d99f041db6 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d422b14f30f72dd7ff758db85f779ea93493f7dd0c166f121bb11e96866128be run #0: crashed: WARNING in cpu_latency_qos_remove_request run #1: crashed: WARNING in cpu_latency_qos_remove_request run #2: crashed: WARNING in cpu_latency_qos_remove_request run #3: crashed: WARNING in cpu_latency_qos_remove_request run #4: crashed: WARNING in cpu_latency_qos_remove_request run #5: crashed: WARNING in cpu_latency_qos_remove_request run #6: crashed: WARNING in cpu_latency_qos_remove_request run #7: crashed: WARNING in cpu_latency_qos_remove_request run #8: crashed: WARNING in cpu_latency_qos_remove_request run #9: crashed: WARNING in cpu_latency_qos_remove_request run #10: crashed: WARNING in cpu_latency_qos_remove_request run #11: crashed: WARNING in cpu_latency_qos_remove_request run #12: crashed: WARNING in cpu_latency_qos_remove_request run #13: crashed: WARNING in cpu_latency_qos_remove_request run #14: crashed: WARNING in cpu_latency_qos_remove_request run #15: crashed: WARNING in cpu_latency_qos_remove_request run #16: crashed: WARNING in cpu_latency_qos_remove_request run #17: crashed: general protection fault in pm_qos_update_target run #18: crashed: WARNING in cpu_latency_qos_remove_request run #19: crashed: WARNING in cpu_latency_qos_remove_request testing current HEAD 4f12b742eb2b3a850ac8be7dc4ed52976fc6cb0b testing commit 4f12b742eb2b3a850ac8be7dc4ed52976fc6cb0b compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 971eb1e2575eebd5e617f9358ae92a72d0a9a5a9c68d75ad5281018731dca1f4 all runs: crashed: WARNING in cpu_latency_qos_remove_request revisions tested: 2, total time: 21m57.265494725s (build: 12m32.550953641s, test: 8m34.211999968s) the crash still happens on HEAD commit msg: Merge tag 'nfs-for-5.17-3' of git://git.linux-nfs.org/projects/anna/linux-nfs crash: WARNING in cpu_latency_qos_remove_request ------------[ cut here ]------------ cpu_latency_qos_remove_request called for unknown object WARNING: CPU: 1 PID: 20187 at kernel/power/qos.c:322 cpu_latency_qos_remove_request+0x41/0x60 kernel/power/qos.c:322 Modules linked in: CPU: 1 PID: 20187 Comm: syz-executor.2 Not tainted 5.17.0-rc4-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 80 e6 c7 8a 74 17 48 c7 c6 40 10 ec 88 48 c7 c7 e0 0d ec 88 e8 8e 56 e6 06 <0f> 0b 5d c3 48 89 ef 5d e9 a2 fd ff ff c3 e8 7c f9 54 00 eb ce 66 RSP: 0018:ffffc90004167d40 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff89d694a0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff89413c60 RDI: fffff5200082cf9a RBP: ffff8880211a9840 R08: 0000000000000001 R09: ffff8880b9f34187 R10: ffffed10173e6830 R11: 0000000000000001 R12: 1ffff9200082cfb6 R13: ffff8880211a9800 R14: ffff8880211a99ec R15: 0000000000004112 FS: 00007ff4ed05a700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000541198 CR3: 000000001ed81000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: snd_pcm_hw_free sound/core/pcm_native.c:870 [inline] snd_pcm_common_ioctl+0x1548/0x2d10 sound/core/pcm_native.c:3269 snd_pcm_ioctl+0x62/0xa0 sound/core/pcm_native.c:3352 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 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:00007ff4ed05a188 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: 00007ffd22ef905f R14: 00007ff4ed05a300 R15: 0000000000022000