BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 108 Comm: jfsCommit Not tainted 6.6.0-rc6-syzkaller-00334-g1acfd2bd3f0d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931 Code: 78 ea b6 07 0f 0b e8 41 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba a3 03 00 00 48 c7 c1 60 5a 42 8b e8 52 ea b6 07 <0f> 0b e8 1b 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba RSP: 0018:ffffc90002ccfce8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: cc8eecb27865ec00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff888072f8d3e0 R08: ffffffff81710cfc R09: 1ffff92000599f3c R10: dffffc0000000000 R11: fffff52000599f3d R12: ffff88802a6449d0 R13: ffff88802a7dba94 R14: ffffc90002822000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9cce48b130 CR3: 000000000d130000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x5d4/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931 Code: 78 ea b6 07 0f 0b e8 41 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba a3 03 00 00 48 c7 c1 60 5a 42 8b e8 52 ea b6 07 <0f> 0b e8 1b 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba RSP: 0018:ffffc90002ccfce8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: cc8eecb27865ec00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff888072f8d3e0 R08: ffffffff81710cfc R09: 1ffff92000599f3c R10: dffffc0000000000 R11: fffff52000599f3d R12: ffff88802a6449d0 R13: ffff88802a7dba94 R14: ffffc90002822000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff5c7d95ed8 CR3: 000000000d130000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400