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: 133 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:txUnlock+0xd6c/0xdb0 fs/jfs/jfs_txnmgr.c:933 Code: b2 fd 90 0f 0b e8 f4 2e 53 fe 48 c7 c7 60 03 ce 8b 48 c7 c6 59 ff cd 8b ba a5 03 00 00 48 c7 c1 a0 10 ce 8b e8 35 c3 b2 fd 90 <0f> 0b e8 cd 2e 53 fe 48 c7 c7 60 03 ce 8b 48 c7 c6 59 ff cd 8b ba RSP: 0018:ffffc900040d7c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff8880207a25c8 RCX: c60a0ac649f3cf00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff110040f44b9 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff21a9b38 R12: ffffc90003c2a120 R13: dffffc0000000000 R14: 0000000000000024 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812482f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f48f327ff5c CR3: 0000000043be6000 CR4: 00000000003526f0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline] jfs_lazycommit+0x533/0xa20 fs/jfs/jfs_txnmgr.c:2735 kthread+0x38b/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: b2 fd 90 0f 0b e8 f4 2e 53 fe 48 c7 c7 60 03 ce 8b 48 c7 c6 59 ff cd 8b ba a5 03 00 00 48 c7 c1 a0 10 ce 8b e8 35 c3 b2 fd 90 <0f> 0b e8 cd 2e 53 fe 48 c7 c7 60 03 ce 8b 48 c7 c6 59 ff cd 8b ba RSP: 0018:ffffc900040d7c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: ffff8880207a25c8 RCX: c60a0ac649f3cf00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff110040f44b9 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff21a9b38 R12: ffffc90003c2a120 R13: dffffc0000000000 R14: 0000000000000024 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812482f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9556bfc000 CR3: 000000002b9c0000 CR4: 00000000003526f0