BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:932! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 112 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:txUnlock.cold+0xaa/0xac fs/jfs/jfs_txnmgr.c:932 Code: f6 ff 90 0f 0b e8 95 4e db 00 48 c7 c1 a0 06 d6 8b ba a4 03 00 00 48 c7 c6 e0 05 d6 8b 48 c7 c7 20 06 d6 8b e8 96 b6 f6 ff 90 <0f> 0b e8 6e 4e db 00 48 c7 c7 c0 07 d6 8b e8 82 b6 f6 ff e9 59 3a RSP: 0018:ffffc90002d97c60 EFLAGS: 00010282 RAX: 0000000000000037 RBX: ffffc900028fa090 RCX: 0000000000000000 RDX: 0000000000000037 RSI: ffffffff81e5b709 RDI: fffff520005b2f7d RBP: ffff88807d95b6c8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8881246dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f31e9068000 CR3: 00000000a188a000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x706/0xab0 fs/jfs/jfs_txnmgr.c:2734 kthread+0x3b3/0x730 kernel/kthread.c:463 ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock.cold+0xaa/0xac fs/jfs/jfs_txnmgr.c:932 Code: f6 ff 90 0f 0b e8 95 4e db 00 48 c7 c1 a0 06 d6 8b ba a4 03 00 00 48 c7 c6 e0 05 d6 8b 48 c7 c7 20 06 d6 8b e8 96 b6 f6 ff 90 <0f> 0b e8 6e 4e db 00 48 c7 c7 c0 07 d6 8b e8 82 b6 f6 ff e9 59 3a RSP: 0018:ffffc90002d97c60 EFLAGS: 00010282 RAX: 0000000000000037 RBX: ffffc900028fa090 RCX: 0000000000000000 RDX: 0000000000000037 RSI: ffffffff81e5b709 RDI: fffff520005b2f7d RBP: ffff88807d95b6c8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8881246dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f682bde2198 CR3: 000000009b188000 CR4: 0000000000350ef0