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: 122 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:txUnlock+0xd7a/0xdc0 fs/jfs/jfs_txnmgr.c:932 Code: d2 fd 90 0f 0b e8 06 e2 6f fe 48 c7 c7 a0 c1 8a 8b 48 c7 c6 99 bd 8a 8b ba a4 03 00 00 48 c7 c1 e0 ce 8a 8b e8 77 f7 d2 fd 90 <0f> 0b e8 df e1 6f fe 48 c7 c7 a0 c1 8a 8b 48 c7 c6 99 bd 8a 8b ba RSP: 0018:ffffc900039c7c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 6fe8fe27aad7be00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000353a0d8 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52000738f39 R12: dffffc0000000000 R13: 1ffff11003c6ffca R14: ffff88801e37fe50 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126440000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6eb0a52000 CR3: 000000003acfc000 CR4: 00000000003526f0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x52c/0xa10 fs/jfs/jfs_txnmgr.c:2734 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51e/0xb90 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: d2 fd 90 0f 0b e8 06 e2 6f fe 48 c7 c7 a0 c1 8a 8b 48 c7 c6 99 bd 8a 8b ba a4 03 00 00 48 c7 c1 e0 ce 8a 8b e8 77 f7 d2 fd 90 <0f> 0b e8 df e1 6f fe 48 c7 c7 a0 c1 8a 8b 48 c7 c6 99 bd 8a 8b ba RSP: 0018:ffffc900039c7c50 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 6fe8fe27aad7be00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000353a0d8 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52000738f39 R12: dffffc0000000000 R13: 1ffff11003c6ffca R14: ffff88801e37fe50 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126440000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6eb0a52000 CR3: 000000003acfc000 CR4: 00000000003526f0