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: 0 UID: 0 PID: 115 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: da fd 90 0f 0b e8 91 d7 74 fe 48 c7 c7 a0 91 a5 8b 48 c7 c6 99 8d a5 8b ba a4 03 00 00 48 c7 c1 a0 9e a5 8b e8 72 cb da fd 90 <0f> 0b e8 6a d7 74 fe 48 c7 c7 a0 91 a5 8b 48 c7 c6 99 8d a5 8b ba RSP: 0018:ffffc9000263fb88 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: e227bb71899d8900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000299a0d8 R08: ffffc9000263f8a7 R09: 1ffff920004c7f14 R10: dffffc0000000000 R11: fffff520004c7f15 R12: dffffc0000000000 R13: 1ffff110477d0dfe R14: ffff88823be86ff0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125e35000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fef657b0000 CR3: 0000000078250000 CR4: 00000000003526f0 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+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: da fd 90 0f 0b e8 91 d7 74 fe 48 c7 c7 a0 91 a5 8b 48 c7 c6 99 8d a5 8b ba a4 03 00 00 48 c7 c1 a0 9e a5 8b e8 72 cb da fd 90 <0f> 0b e8 6a d7 74 fe 48 c7 c7 a0 91 a5 8b 48 c7 c6 99 8d a5 8b ba RSP: 0018:ffffc9000263fb88 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: e227bb71899d8900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000299a0d8 R08: ffffc9000263f8a7 R09: 1ffff920004c7f14 R10: dffffc0000000000 R11: fffff520004c7f15 R12: dffffc0000000000 R13: 1ffff110477d0dfe R14: ffff88823be86ff0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7dea1b42f8 CR3: 000000007819a000 CR4: 00000000003526f0