R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb0f32336d4
R13: 00000000004c4401 R14: 00000000004d79f0 R15: 0000000000000004
WARNING: CPU: 0 PID: 16636 at kernel/locking/lockdep.c:4925 lockdep_unregister_key+0x1ef/0x4c0 kernel/locking/lockdep.c:4925
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 16636 Comm: syz-executor.4 Not tainted 5.1.0-rc1-next-20190322 #9
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:lockdep_unregister_key+0x1ef/0x4c0 kernel/locking/lockdep.c:4925
Code: 00 00 00 00 00 fc ff df 4c 89 c2 48 c1 ea 03 80 3c 02 00 0f 85 c9 02 00 00 48 b8 00 02 00 00 00 00 ad de 49 89 44 24 08 eb 02 <0f> 0b ba 01 00 00 00 4c 89 e6 4c 89 ff e8 8f de ff ff 4c 89 ff e8
RSP: 0018:ffff88809d41f720 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff12bd6ef
RDX: 1ffffffff1468939 RSI: 0000000000000000 RDI: ffffffff8a3449c8
RBP: ffff88809d41f750 R08: 1ffff11013a83ed8 R09: ffffed1013a83ed9
R10: ffffed1013a83ed8 R11: 0000000000000003 R12: ffff8880a978bb18
R13: dffffc0000000000 R14: 0000000000000282 R15: ffffffff8a0bd778
 wq_unregister_lockdep kernel/workqueue.c:3456 [inline]
 alloc_workqueue+0xc52/0xf30 kernel/workqueue.c:4298
 ucma_open+0x76/0x290 drivers/infiniband/core/ucma.c:1732
 misc_open+0x398/0x4c0 drivers/char/misc.c:141
 chrdev_open+0x247/0x6b0 fs/char_dev.c:417
 do_dentry_open+0x488/0x1160 fs/open.c:771
 vfs_open+0xa0/0xd0 fs/open.c:880
 do_last fs/namei.c:3416 [inline]
 path_openat+0x10e9/0x46e0 fs/namei.c:3533
 do_filp_open+0x1a1/0x280 fs/namei.c:3563
 do_sys_open+0x3fe/0x5d0 fs/open.c:1063
 __do_sys_openat fs/open.c:1090 [inline]
 __se_sys_openat fs/open.c:1084 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1084
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458209
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb0f3232c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fb0f3232c90 RCX: 0000000000458209
RDX: 0000000000000002 RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb0f32336d4
R13: 00000000004c4401 R14: 00000000004d79f0 R15: 0000000000000004
Kernel Offset: disabled
Rebooting in 86400 seconds..