BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 105 Comm: jfsCommit Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:txUnlock+0xc62/0xcc0 fs/jfs/jfs_txnmgr.c:931 Code: fe e9 e2 f6 ff ff e8 bd 17 93 fe 48 c7 c1 c0 ee a9 8a ba a3 03 00 00 48 c7 c6 40 ee a9 8a 48 c7 c7 80 ee a9 8a e8 2e c0 76 fe <0f> 0b e8 47 47 e6 fe e9 39 f6 ff ff e8 8d 17 93 fe 48 c7 c1 00 ee RSP: 0018:ffffc90002d0fd80 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc90002862120 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8169097c RDI: 0000000000000005 RBP: ffff88802a2c1ba0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4194f95ed8 CR3: 000000000c775000 CR4: 0000000000350ee0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x714/0xb10 fs/jfs/jfs_txnmgr.c:2732 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xc62/0xcc0 fs/jfs/jfs_txnmgr.c:931 Code: fe e9 e2 f6 ff ff e8 bd 17 93 fe 48 c7 c1 c0 ee a9 8a ba a3 03 00 00 48 c7 c6 40 ee a9 8a 48 c7 c7 80 ee a9 8a e8 2e c0 76 fe <0f> 0b e8 47 47 e6 fe e9 39 f6 ff ff e8 8d 17 93 fe 48 c7 c1 00 ee RSP: 0018:ffffc90002d0fd80 EFLAGS: 00010286 RAX: 0000000000000037 RBX: ffffc90002862120 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8169097c RDI: 0000000000000005 RBP: ffff88802a2c1ba0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4194f95ed8 CR3: 000000000c775000 CR4: 0000000000350ee0