BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 114 Comm: jfsCommit Not tainted 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:txUnlock+0xa29/0xb20 fs/jfs/jfs_txnmgr.c:931 Code: e9 69 fd ff ff e8 f7 41 76 fe 48 c7 c1 60 4e cd 8b ba a3 03 00 00 48 c7 c6 e0 4d cd 8b 48 c7 c7 20 4e cd 8b e8 08 8f 55 fe 90 <0f> 0b e8 70 c7 da fe e9 6b f8 ff ff e8 c6 41 76 fe 48 c7 c1 a0 4d RSP: 0018:ffffc90002e17ce0 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc9000298a120 RCX: ffffffff819a8ef9 RDX: 0000000000000000 RSI: ffffffff819b0d86 RDI: 0000000000000005 RBP: ffff888032cd5d90 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888124ae9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561857860258 CR3: 0000000031267000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x741/0xb30 fs/jfs/jfs_txnmgr.c:2733 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xa29/0xb20 fs/jfs/jfs_txnmgr.c:931 Code: e9 69 fd ff ff e8 f7 41 76 fe 48 c7 c1 60 4e cd 8b ba a3 03 00 00 48 c7 c6 e0 4d cd 8b 48 c7 c7 20 4e cd 8b e8 08 8f 55 fe 90 <0f> 0b e8 70 c7 da fe e9 6b f8 ff ff e8 c6 41 76 fe 48 c7 c1 a0 4d RSP: 0018:ffffc90002e17ce0 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc9000298a120 RCX: ffffffff819a8ef9 RDX: 0000000000000000 RSI: ffffffff819b0d86 RDI: 0000000000000005 RBP: ffff888032cd5d90 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881249e9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1671380178 CR3: 0000000032796000 CR4: 0000000000350ef0