BUG at fs/jfs/jfs_txnmgr.c:933 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:933! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 120 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 RIP: 0010:txUnlock+0xd95/0xde0 fs/jfs/jfs_txnmgr.c:933 Code: b4 fd 90 0f 0b e8 2b c3 54 fe 48 c7 c7 e0 01 4e 8c 48 c7 c6 d9 fd 4d 8c ba a5 03 00 00 48 c7 c1 e0 0e 4e 8c e8 2c b0 b4 fd 90 <0f> 0b e8 04 c3 54 fe 48 c7 c7 e0 01 4e 8c 48 c7 c6 d9 fd 4d 8c ba RSP: 0018:ffffc9000211fc48 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff88801e318580 RCX: 93c9616ab1868900 RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 RBP: 1ffff11003c630b0 R08: ffffc9000211f9c7 R09: 1ffff92000423f38 R10: dffffc0000000000 R11: fffff52000423f39 R12: ffffc900028ea090 R13: dffffc0000000000 R14: 0000000000000012 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888124cce000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8af7a636e0 CR3: 000000001bf56000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline] jfs_lazycommit+0x59f/0xac0 fs/jfs/jfs_txnmgr.c:2735 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 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+0xd95/0xde0 fs/jfs/jfs_txnmgr.c:933 Code: b4 fd 90 0f 0b e8 2b c3 54 fe 48 c7 c7 e0 01 4e 8c 48 c7 c6 d9 fd 4d 8c ba a5 03 00 00 48 c7 c1 e0 0e 4e 8c e8 2c b0 b4 fd 90 <0f> 0b e8 04 c3 54 fe 48 c7 c7 e0 01 4e 8c 48 c7 c6 d9 fd 4d 8c ba RSP: 0018:ffffc9000211fc48 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff88801e318580 RCX: 93c9616ab1868900 RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 RBP: 1ffff11003c630b0 R08: ffffc9000211f9c7 R09: 1ffff92000423f38 R10: dffffc0000000000 R11: fffff52000423f39 R12: ffffc900028ea090 R13: dffffc0000000000 R14: 0000000000000012 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888124cce000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8af7a636e0 CR3: 000000007f776000 CR4: 0000000000350ef0