bisecting fixing commit since 2034d6f0838e465dd8f120c4e946d8444b4bb5df
building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9
testing commit 2034d6f0838e465dd8f120c4e946d8444b4bb5df
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1587759d7ba5533e0b9708370c837e5229d48eda9dc30a3c2eaf0ef919998294
run #0: crashed: WARNING: locking bug in __sb_end_write
run #1: crashed: WARNING: locking bug in __sb_end_write
run #2: crashed: WARNING: locking bug in __sb_end_write
run #3: crashed: WARNING: locking bug in __sb_end_write
run #4: crashed: WARNING: locking bug in __sb_end_write
run #5: crashed: WARNING: locking bug in __sb_end_write
run #6: crashed: WARNING: locking bug in __sb_end_write
run #7: crashed: WARNING: locking bug in __sb_end_write
run #8: crashed: WARNING: locking bug in __sb_end_write
run #9: crashed: WARNING: locking bug in __sb_end_write
run #10: crashed: WARNING: locking bug in __sb_end_write
run #11: crashed: WARNING: locking bug in __sb_end_write
run #12: crashed: WARNING: locking bug in __sb_end_write
run #13: crashed: WARNING: locking bug in __sb_end_write
run #14: crashed: WARNING: locking bug in __sb_end_write
run #15: crashed: WARNING: locking bug in __sb_end_write
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 53bd76690e27f37c9df221a651a52cea04214da9
testing commit 53bd76690e27f37c9df221a651a52cea04214da9
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7d9c1126b89979ac0ce182a63bf0a643f1afefc91a78277440f902d15051d4ca
run #0: crashed: WARNING: locking bug in __sb_end_write
run #1: crashed: WARNING: locking bug in __sb_end_write
run #2: crashed: WARNING: locking bug in __sb_end_write
run #3: crashed: WARNING: locking bug in __sb_end_write
run #4: crashed: WARNING: locking bug in __sb_end_write
run #5: crashed: WARNING: locking bug in __sb_end_write
run #6: OK
run #7: OK
run #8: OK
run #9: OK
revisions tested: 2, total time: 39m2.566276842s (build: 20m41.697543606s, test: 17m56.904923071s)
the crash still happens on HEAD
commit msg: Linux 4.19.200
crash: WARNING: locking bug in __sb_end_write
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(depth <= 0)
WARNING: CPU: 1 PID: 31600 at kernel/locking/lockdep.c:3670 __lock_release kernel/locking/lockdep.c:3670 [inline]
WARNING: CPU: 1 PID: 31600 at kernel/locking/lockdep.c:3670 lock_release+0x669/0x840 kernel/locking/lockdep.c:3927
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 31600 Comm: syz-executor.0 Not tainted 4.19.200-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+0x17c/0x226 lib/dump_stack.c:118
 panic+0x1cd/0x375 kernel/panic.c:186
 __warn.cold.7+0x1b/0x36 kernel/panic.c:541
 report_bug+0x1a1/0x200 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+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:1038
RIP: 0010:__lock_release kernel/locking/lockdep.c:3670 [inline]
RIP: 0010:lock_release+0x669/0x840 kernel/locking/lockdep.c:3927
Code: 03 38 d0 7c 08 84 d2 0f 85 c7 01 00 00 8b 35 0e c9 79 0a 85 f6 75 15 48 c7 c6 40 99 09 88 48 c7 c7 00 66 09 88 e8 48 23 3b 06 <0f> 0b 48 8b 95 70 ff ff ff 4c 89 e6 4c 89 ff e8 f3 6f ff ff e9 49
RSP: 0018:ffff888099807d38 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 1ffff11013300faa RCX: 0000000000000000
RDX: 0000000000000004 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888099807dd8 R08: fffffbfff132e771 R09: fffffbfff132e770
R10: fffffbfff132e770 R11: ffffffff89973b83 R12: ffff88809e5a8710
R13: 0000000000000000 R14: ffff8880a2f12f00 R15: ffff8880a2f12680
 percpu_up_read_preempt_enable include/linux/percpu-rwsem.h:102 [inline]
 percpu_up_read include/linux/percpu-rwsem.h:108 [inline]
 __sb_end_write+0xa4/0xd0 fs/super.c:1353
 file_end_write include/linux/fs.h:2793 [inline]
 vfs_write+0x2e4/0x4d0 fs/read_write.c:555
 ksys_write+0x103/0x260 fs/read_write.c:599
 __do_sys_write fs/read_write.c:611 [inline]
 __se_sys_write fs/read_write.c:608 [inline]
 __x64_sys_write+0x6e/0xb0 fs/read_write.c:608
 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
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:00007f10a6faf188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 0000000000466459
RDX: 0000000020104000 RSI: 0000000020004200 RDI: 0000000000000004
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0
R13: 00007ffd3412349f R14: 00007f10a6faf300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..