BUG at fs/jfs/jfs_txnmgr.c:662 assert(last)
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kernel BUG at fs/jfs/jfs_txnmgr.c:662!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6444 Comm: syz.4.78 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 1e e7 79 fe 48 c7 c7 a0 31 45 8b 48 c7 c6 99 2d 45 8b ba 96 02 00 00 48 c7 c1 c0 32 45 8b e8 cf dc df fd 90 <0f> 0b e8 f7 e6 79 fe 48 c7 c7 80 33 45 8b e8 bb dc df fd 48 c7 c7
RSP: 0018:ffffc9000c8ef300 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 3bbc1630d962f200
RDX: ffffc9000e8f4000 RSI: 0000000000002cba RDI: 0000000000002cbb
RBP: ffffc9000c8ef428 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff5200191de11 R12: 1ffff920006a8400
R13: ffffc90003542000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6d1f7b56c0(0000) GS:ffff8881268d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005561e5c20078 CR3: 0000000027b38000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x869/0x5410 fs/jfs/jfs_txnmgr.c:1256
 jfs_create+0x8f4/0xb10 fs/jfs/namei.c:156
 lookup_open fs/namei.c:4449 [inline]
 open_last_lookups fs/namei.c:4549 [inline]
 path_openat+0x1902/0x3e70 fs/namei.c:4793
 do_filp_open+0x22d/0x490 fs/namei.c:4823
 do_sys_openat2+0x12f/0x220 fs/open.c:1430
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_openat fs/open.c:1452 [inline]
 __se_sys_openat fs/open.c:1447 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1447
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d2157acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d1f7b5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6d217f6090 RCX: 00007f6d2157acb9
RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c
RBP: 00007f6d215e8bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6d217f6128 R14: 00007f6d217f6090 R15: 00007fff68158f28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 1e e7 79 fe 48 c7 c7 a0 31 45 8b 48 c7 c6 99 2d 45 8b ba 96 02 00 00 48 c7 c1 c0 32 45 8b e8 cf dc df fd 90 <0f> 0b e8 f7 e6 79 fe 48 c7 c7 80 33 45 8b e8 bb dc df fd 48 c7 c7
RSP: 0018:ffffc9000c8ef300 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 3bbc1630d962f200
RDX: ffffc9000e8f4000 RSI: 0000000000002cba RDI: 0000000000002cbb
RBP: ffffc9000c8ef428 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff5200191de11 R12: 1ffff920006a8400
R13: ffffc90003542000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6d1f7b56c0(0000) GS:ffff8881268d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005561e5c20078 CR3: 0000000027b38000 CR4: 00000000003526f0