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 PTI CPU: 1 UID: 0 PID: 121 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:txUnlock+0xd7a/0xdc0 fs/jfs/jfs_txnmgr.c:932 Code: e8 fd 90 0f 0b e8 f6 c2 80 fe 48 c7 c7 60 48 24 8b 48 c7 c6 59 44 24 8b ba a4 03 00 00 48 c7 c1 a0 55 24 8b e8 97 f1 e8 fd 90 <0f> 0b e8 cf c2 80 fe 48 c7 c7 60 48 24 8b 48 c7 c6 59 44 24 8b ba RSP: 0018:ffffc900034f7bb0 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 5d1ff71195504800 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003509168 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff5200069ef19 R12: dffffc0000000000 R13: 1ffff1100b30fa6b R14: ffff88805987d358 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126cc8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f204b25b000 CR3: 000000004daee000 CR4: 00000000003526f0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x52e/0xa10 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+0xd7a/0xdc0 fs/jfs/jfs_txnmgr.c:932 Code: e8 fd 90 0f 0b e8 f6 c2 80 fe 48 c7 c7 60 48 24 8b 48 c7 c6 59 44 24 8b ba a4 03 00 00 48 c7 c1 a0 55 24 8b e8 97 f1 e8 fd 90 <0f> 0b e8 cf c2 80 fe 48 c7 c7 60 48 24 8b 48 c7 c6 59 44 24 8b ba RSP: 0018:ffffc900034f7bb0 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 5d1ff71195504800 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003509168 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff5200069ef19 R12: dffffc0000000000 R13: 1ffff1100b30fa6b R14: ffff88805987d358 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126cc8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f204b25b000 CR3: 000000004daee000 CR4: 00000000003526f0