syzbot

BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:932!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 114 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:932
Code: 8f 9d 5a 07 0f 0b e8 e8 02 84 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba a4 03 00 00 48 c7 c1 e0 1c e4 8a e8 69 9d 5a 07 <0f> 0b e8 c2 02 84 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba
RSP: 0018:ffffc90002d27d08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000001000 RCX: d0f2e9bb4f7ef200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000289a0d8 R08: ffffc90002d27a07 R09: 1ffff920005a4f40
R10: dffffc0000000000 R11: fffff520005a4f41 R12: ffff888018f7b1f0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802f455c94
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1297f909c0 CR3: 00000000303e9000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline]
 jfs_lazycommit+0x570/0xa60 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:932
Code: 8f 9d 5a 07 0f 0b e8 e8 02 84 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba a4 03 00 00 48 c7 c1 e0 1c e4 8a e8 69 9d 5a 07 <0f> 0b e8 c2 02 84 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba
RSP: 0018:ffffc90002d27d08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000001000 RCX: d0f2e9bb4f7ef200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000289a0d8 R08: ffffc90002d27a07 R09: 1ffff920005a4f40
R10: dffffc0000000000 R11: fffff520005a4f41 R12: ffff888018f7b1f0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802f455c94
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1297f909c0 CR3: 000000003015d000 CR4: 00000000003506e0