BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:932! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 110 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: df fd 90 0f 0b e8 a1 37 78 fe 48 c7 c7 e0 b5 a4 8b 48 c7 c6 d9 b1 a4 8b ba a4 03 00 00 48 c7 c1 e0 c2 a4 8b e8 72 84 df fd 90 <0f> 0b e8 7a 37 78 fe 48 c7 c7 e0 b5 a4 8b 48 c7 c6 d9 b1 a4 8b ba RSP: 0018:ffffc90002707ba8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f6369a21e2873200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000292a1f8 R08: ffffc900027078c7 R09: 1ffff920004e0f18 R10: dffffc0000000000 R11: fffff520004e0f19 R12: dffffc0000000000 R13: 1ffff11005fc6ab0 R14: ffff88802fe35580 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d0b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3421dff8 CR3: 000000007853b000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2734 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: df fd 90 0f 0b e8 a1 37 78 fe 48 c7 c7 e0 b5 a4 8b 48 c7 c6 d9 b1 a4 8b ba a4 03 00 00 48 c7 c1 e0 c2 a4 8b e8 72 84 df fd 90 <0f> 0b e8 7a 37 78 fe 48 c7 c7 e0 b5 a4 8b 48 c7 c6 d9 b1 a4 8b ba RSP: 0018:ffffc90002707ba8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f6369a21e2873200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000292a1f8 R08: ffffc900027078c7 R09: 1ffff920004e0f18 R10: dffffc0000000000 R11: fffff520004e0f19 R12: dffffc0000000000 R13: 1ffff11005fc6ab0 R14: ffff88802fe35580 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d0b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ceaba8000 CR3: 0000000076f59000 CR4: 0000000000350ef0