Locker's tblock: ffffc90002779650: 00000004 00000030 00000040 00000000
Tlock: ffffc9000299a1b0: 00030000 80018000 2e4954d8 ffff8880
Tlock: ffffc9000299a1c0: 71c6f210 ffff8880 01140000 07002000
Tlock: ffffc9000299a1d0: 0002011c 00000000 00000000 00000000
Tlock: ffffc9000299a1e0: 00000000 00000000 00000000 00000000
Tlock: ffffc9000299a1f0: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:835!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 18619 Comm: syz.5.2897 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:txLock+0x1c61/0x1cb0 fs/jfs/jfs_txnmgr.c:835
Code: 48 c7 c6 e0 b8 a4 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 84 ac 49 01 48 83 c4 10 90 <0f> 0b e8 48 b5 78 fe 4c 89 ff 48 c7 c6 e0 c0 a4 8b e8 d9 0e e1 fd
RSP: 0018:ffffc9000c47f580 EFLAGS: 00010282
RAX: a2992b02de31ab00 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90022467000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000c47f6a8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa658 R12: 0000000000000002
R13: dffffc0000000000 R14: 1ffff92000533436 R15: ffffc9000299a1b2
FS:  00007fed83ff66c0(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed83ff5f98 CR3: 000000005b4ec000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x852/0x5430 fs/jfs/jfs_txnmgr.c:1256
 jfs_commit_inode+0x2ef/0x530 fs/jfs/inode.c:114
 jfs_fsync+0x17e/0x1d0 fs/jfs/file.c:37
 generic_write_sync include/linux/fs.h:3046 [inline]
 generic_file_write_iter+0x319/0x550 mm/filemap.c:4389
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_write+0x145/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fed85d8eec9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fed83ff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fed85fe6090 RCX: 00007fed85d8eec9
RDX: 000000000000045c RSI: 00002000000007c0 RDI: 0000000000000004
RBP: 00007fed85e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fed85fe6128 R14: 00007fed85fe6090 R15: 00007ffc1083d208
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1c61/0x1cb0 fs/jfs/jfs_txnmgr.c:835
Code: 48 c7 c6 e0 b8 a4 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 84 ac 49 01 48 83 c4 10 90 <0f> 0b e8 48 b5 78 fe 4c 89 ff 48 c7 c6 e0 c0 a4 8b e8 d9 0e e1 fd
RSP: 0018:ffffc9000c47f580 EFLAGS: 00010282
RAX: a2992b02de31ab00 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90022467000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000c47f6a8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa658 R12: 0000000000000002
R13: dffffc0000000000 R14: 1ffff92000533436 R15: ffffc9000299a1b2
FS:  00007fed83ff66c0(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed83ff5f98 CR3: 000000005b4ec000 CR4: 0000000000350ef0