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: 11851 Comm: syz.8.681 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:txLock+0x1b79/0x1cb0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 17 7c 7e fe 48 c7 c7 a0 2e 25 8b 48 c7 c6 99 2a 25 8b ba 96 02 00 00 48 c7 c1 c0 2f 25 8b e8 58 20 e6 fd 90 <0f> 0b e8 f0 7b 7e fe 48 c7 c7 80 30 25 8b e8 44 20 e6 fd 48 c7 c7
RSP: 0018:ffffc9000c3bf760 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 7ec022f7e570d300
RDX: ffffc9000e8a3000 RSI: 00000000000037ec RDI: 00000000000037ed
RBP: ffffc9000c3bf888 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52001877e9d R12: 1ffff920006a5200
R13: ffffc90003529000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f3501d5d6c0(0000) GS:ffff888126cee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa682adce9c CR3: 0000000039b48000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x852/0x5430 fs/jfs/jfs_txnmgr.c:1256
 jfs_mkdir+0x856/0xa70 fs/jfs/namei.c:290
 vfs_mkdir+0x52d/0x5d0 fs/namei.c:5139
 do_mkdirat+0x27a/0x4b0 fs/namei.c:5173
 __do_sys_mkdirat fs/namei.c:5195 [inline]
 __se_sys_mkdirat fs/namei.c:5193 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:5193
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3503b1de97
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007f3501d5ce68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f3501d5cef0 RCX: 00007f3503b1de97
RDX: 00000000000001ff RSI: 00002000000000c0 RDI: 00000000ffffff9c
RBP: 00002000000002c0 R08: 00002000000007c0 R09: 0000000000000000
R10: 00002000000002c0 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f3501d5ceb0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1b79/0x1cb0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 17 7c 7e fe 48 c7 c7 a0 2e 25 8b 48 c7 c6 99 2a 25 8b ba 96 02 00 00 48 c7 c1 c0 2f 25 8b e8 58 20 e6 fd 90 <0f> 0b e8 f0 7b 7e fe 48 c7 c7 80 30 25 8b e8 44 20 e6 fd 48 c7 c7
RSP: 0018:ffffc9000c3bf760 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 7ec022f7e570d300
RDX: ffffc9000e8a3000 RSI: 00000000000037ec RDI: 00000000000037ed
RBP: ffffc9000c3bf888 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52001877e9d R12: 1ffff920006a5200
R13: ffffc90003529000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f3501d5d6c0(0000) GS:ffff888126cee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa682adce9c CR3: 0000000039b48000 CR4: 00000000003526f0