------------[ cut here ]------------ WARNING: CPU: 1 PID: 17629 at kernel/workqueue.c:3546 pwq_adjust_max_active.cold+0x11/0x18 kernel/workqueue.c:3546 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 17629 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:pwq_adjust_max_active.cold+0x11/0x18 kernel/workqueue.c:3546 Code: f9 e8 72 a8 6f f9 48 c7 c7 80 3f 69 88 e8 d1 d9 00 00 0f 0b e9 d3 00 4b f9 e8 5a a8 6f f9 48 c7 c7 80 3f 69 88 e8 b9 d9 00 00 <0f> 0b e9 8b 0c 4b f9 e8 42 a8 6f f9 48 c7 c7 80 3f 69 88 e8 a1 d9 RSP: 0018:ffff88804635fa48 EFLAGS: 00010286 RAX: 0000000000000024 RBX: ffffe8ffffd8d800 RCX: 0000000000000000 RDX: 000000000000f49c RSI: ffffffff814dff01 RDI: ffffed1008c6bf3b RBP: ffff8880a946fac1 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: ffff8880a946fae0 __alloc_workqueue_key+0x628/0xed0 kernel/workqueue.c:4146 vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 xfs_init_mount_workqueues+0x15e/0x6d0 fs/xfs/xfs_super.c:844 xfs_fs_fill_super+0x713/0x1540 fs/xfs/xfs_super.c:1625 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 ksys_mount+0xcf/0x130 fs/namespace.c:3038 syz-executor.1 (17628): drop_caches: 2 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 RIP: 0033:0x7ffa6b84862a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffa69db8f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000000ace5 RCX: 00007ffa6b84862a RDX: 000000002000ad00 RSI: 000000002000ad40 RDI: 00007ffa69db8fe0 RBP: 00007ffa69db9020 R08: 00007ffa69db9020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000002000ad00 R13: 000000002000ad40 R14: 00007ffa69db8fe0 R15: 00000000200002c0 vmscan: shrink_slab: gfs2_glock_shrink_scan+0x0/0xa10 fs/gfs2/glock.c:229 negative objects to delete nr=-85 Kernel Offset: disabled Rebooting in 86400 seconds..