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: 0 UID: 0 PID: 111 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: df fd 90 0f 0b e8 41 26 78 fe 48 c7 c7 a0 ac a4 8b 48 c7 c6 99 a8 a4 8b ba a4 03 00 00 48 c7 c1 a0 b9 a4 8b e8 c2 b3 df fd 90 <0f> 0b e8 1a 26 78 fe 48 c7 c7 a0 ac a4 8b 48 c7 c6 99 a8 a4 8b ba RSP: 0018:ffffc900026d7ba8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f8a4228ba268ba00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900028fa120 R08: ffffc900026d78c7 R09: 1ffff920004daf18 R10: dffffc0000000000 R11: fffff520004daf19 R12: dffffc0000000000 R13: 1ffff1100f033015 R14: ffff8880781980a8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565355dda950 CR3: 0000000077563000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2734 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: df fd 90 0f 0b e8 41 26 78 fe 48 c7 c7 a0 ac a4 8b 48 c7 c6 99 a8 a4 8b ba a4 03 00 00 48 c7 c1 a0 b9 a4 8b e8 c2 b3 df fd 90 <0f> 0b e8 1a 26 78 fe 48 c7 c7 a0 ac a4 8b 48 c7 c6 99 a8 a4 8b ba RSP: 0018:ffffc900026d7ba8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f8a4228ba268ba00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900028fa120 R08: ffffc900026d78c7 R09: 1ffff920004daf18 R10: dffffc0000000000 R11: fffff520004daf19 R12: dffffc0000000000 R13: 1ffff1100f033015 R14: ffff8880781980a8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5c0a7bf000 CR3: 0000000054f43000 CR4: 0000000000350ef0