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 PTI CPU: 1 UID: 0 PID: 128 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:txUnlock+0xd6c/0xdb0 fs/jfs/jfs_txnmgr.c:933 Code: c8 fd 90 0f 0b e8 94 48 66 fe 48 c7 c7 20 ea 8b 8b 48 c7 c6 19 e6 8b 8b ba a5 03 00 00 48 c7 c1 60 f7 8b 8b e8 15 a1 c8 fd 90 <0f> 0b e8 6d 48 66 fe 48 c7 c7 20 ea 8b 8b 48 c7 c6 19 e6 8b 8b ba RSP: 0018:ffffc90003057c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff88801cbe7aa8 RCX: 0f9947dfabc42f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff1100397cf55 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124903 R12: ffffc9000338a360 R13: dffffc0000000000 R14: 000000000000006c R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126244000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84b3ec4368 CR3: 0000000041cb2000 CR4: 00000000003526f0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline] jfs_lazycommit+0x533/0xa20 fs/jfs/jfs_txnmgr.c:2735 kthread+0x388/0x470 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+0xd6c/0xdb0 fs/jfs/jfs_txnmgr.c:933 Code: c8 fd 90 0f 0b e8 94 48 66 fe 48 c7 c7 20 ea 8b 8b 48 c7 c6 19 e6 8b 8b ba a5 03 00 00 48 c7 c1 60 f7 8b 8b e8 15 a1 c8 fd 90 <0f> 0b e8 6d 48 66 fe 48 c7 c7 20 ea 8b 8b 48 c7 c6 19 e6 8b 8b ba RSP: 0018:ffffc90003057c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff88801cbe7aa8 RCX: 0f9947dfabc42f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff1100397cf55 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124903 R12: ffffc9000338a360 R13: dffffc0000000000 R14: 000000000000006c R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126244000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84b3ec4368 CR3: 0000000041cb2000 CR4: 00000000003526f0