Locker's tblock: ffffc900030b1310: 00000004 00000e20 00001020 00000000
Tlock: ffffc900033d21f8: 00020000 80018804 60816138 ffff8880
Tlock: ffffc900033d2208: 60ea64d0 ffff8880 03140000 07002000
Tlock: ffffc900033d2218: 01040107 00000100 00000000 00000000
Tlock: ffffc900033d2228: 00000000 00000000 00000000 00000000
Tlock: ffffc900033d2238: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:836!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6326 Comm: syz.0.119 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:txLock+0x1cc3/0x1d10 fs/jfs/jfs_txnmgr.c:836
Code: 48 c7 c6 80 f5 ab 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 a2 3d 63 01 48 83 c4 10 90 <0f> 0b e8 b6 a1 65 fe 4c 89 ef 48 c7 c6 a0 fd ab 8b e8 d7 2d c8 fd
RSP: 0018:ffffc90007cd7560 EFLAGS: 00010286
RAX: d5c03b75a6e5b500 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90010489000 RSI: 000000000001bd8c RDI: 000000000001bd8d
RBP: ffffc90007cd76a0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170c4903 R12: 0000000000000010
R13: dffffc0000000000 R14: 1ffff9200067a43f R15: ffffc900033d21fa
FS:  00007fa8ea8e56c0(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8ea8e4ff8 CR3: 000000003c6e8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dtSplitRoot+0x38d/0x1900 fs/jfs/jfs_dtree.c:1924
 dtSplitUp fs/jfs/jfs_dtree.c:990 [inline]
 dtInsert+0xedd/0x5cb0 fs/jfs/jfs_dtree.c:868
 jfs_mkdir+0x76b/0xb00 fs/jfs/namei.c:271
 vfs_mkdir+0x402/0x620 fs/namei.c:5276
 filename_mkdirat+0x289/0x520 fs/namei.c:5309
 __do_sys_mkdirat fs/namei.c:5330 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5327
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa8ec6acd07
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa8ea8e4e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fa8ea8e4ee0 RCX: 00007fa8ec6acd07
RDX: 00000000000001ff RSI: 000020000001fc00 RDI: 00000000ffffff9c
RBP: 0000200000000b00 R08: 0000200000000140 R09: 0000000000000000
R10: 0000200000000b00 R11: 0000000000000246 R12: 000020000001fc00
R13: 00007fa8ea8e4ea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1cc3/0x1d10 fs/jfs/jfs_txnmgr.c:836
Code: 48 c7 c6 80 f5 ab 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 a2 3d 63 01 48 83 c4 10 90 <0f> 0b e8 b6 a1 65 fe 4c 89 ef 48 c7 c6 a0 fd ab 8b e8 d7 2d c8 fd
RSP: 0018:ffffc90007cd7560 EFLAGS: 00010286
RAX: d5c03b75a6e5b500 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90010489000 RSI: 000000000001bd8c RDI: 000000000001bd8d
RBP: ffffc90007cd76a0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170c4903 R12: 0000000000000010
R13: dffffc0000000000 R14: 1ffff9200067a43f R15: ffffc900033d21fa
FS:  00007fa8ea8e56c0(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f09cdd2046a CR3: 000000003c6e8000 CR4: 00000000003526f0