BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 111 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:txUnlock+0xa29/0xb20 fs/jfs/jfs_txnmgr.c:931 Code: e9 69 fd ff ff e8 f7 45 71 fe 48 c7 c1 80 f5 ed 8b ba a3 03 00 00 48 c7 c6 00 f5 ed 8b 48 c7 c7 40 f5 ed 8b e8 f8 f5 4f fe 90 <0f> 0b e8 90 b8 d6 fe e9 6b f8 ff ff e8 c6 45 71 fe 48 c7 c1 c0 f4 RSP: 0018:ffffc900026f7cd8 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc9000291a5a0 RCX: ffffffff819a5e09 RDX: 0000000000000000 RSI: ffffffff819adca6 RDI: 0000000000000005 RBP: ffff88805019b6c8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000015 R13: 0000000000000000 R14: 0000000000000014 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881247b3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32f06ff8 CR3: 0000000079a65000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x741/0xb30 fs/jfs/jfs_txnmgr.c:2733 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x730 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xa29/0xb20 fs/jfs/jfs_txnmgr.c:931 Code: e9 69 fd ff ff e8 f7 45 71 fe 48 c7 c1 80 f5 ed 8b ba a3 03 00 00 48 c7 c6 00 f5 ed 8b 48 c7 c7 40 f5 ed 8b e8 f8 f5 4f fe 90 <0f> 0b e8 90 b8 d6 fe e9 6b f8 ff ff e8 c6 45 71 fe 48 c7 c1 c0 f4 RSP: 0018:ffffc900026f7cd8 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc9000291a5a0 RCX: ffffffff819a5e09 RDX: 0000000000000000 RSI: ffffffff819adca6 RDI: 0000000000000005 RBP: ffff88805019b6c8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000015 R13: 0000000000000000 R14: 0000000000000014 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881246b3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd33c5db000 CR3: 0000000058eee000 CR4: 0000000000350ef0