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: 123 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:txUnlock+0xd7a/0xdc0 fs/jfs/jfs_txnmgr.c:932 Code: e4 fd 90 0f 0b e8 b6 b5 7d fe 48 c7 c7 20 2e 25 8b 48 c7 c6 19 2a 25 8b ba a4 03 00 00 48 c7 c1 60 3b 25 8b e8 97 a4 e4 fd 90 <0f> 0b e8 8f b5 7d fe 48 c7 c7 20 2e 25 8b 48 c7 c6 19 2a 25 8b ba RSP: 0018:ffffc900039d7b90 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 319a05025fbf6a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000354a120 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff5200073af15 R12: dffffc0000000000 R13: 1ffff11005c6fe92 R14: ffff88802e37f490 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126d01000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f11ab632000 CR3: 0000000033874000 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+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+0xd7a/0xdc0 fs/jfs/jfs_txnmgr.c:932 Code: e4 fd 90 0f 0b e8 b6 b5 7d fe 48 c7 c7 20 2e 25 8b 48 c7 c6 19 2a 25 8b ba a4 03 00 00 48 c7 c1 60 3b 25 8b e8 97 a4 e4 fd 90 <0f> 0b e8 8f b5 7d fe 48 c7 c7 20 2e 25 8b 48 c7 c6 19 2a 25 8b ba RSP: 0018:ffffc900039d7b90 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 319a05025fbf6a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000354a120 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff5200073af15 R12: dffffc0000000000 R13: 1ffff11005c6fe92 R14: ffff88802e37f490 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126d01000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f11ab632000 CR3: 0000000033874000 CR4: 00000000003526f0