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 PTI CPU: 0 PID: 111 Comm: jfsCommit Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:txUnlock+0xc74/0xca0 fs/jfs/jfs_txnmgr.c:931 Code: 45 08 90 0f 0b e8 cc bf 71 fe 48 c7 c7 40 39 e2 8b 48 c7 c6 39 35 e2 8b ba a3 03 00 00 48 c7 c1 20 46 e2 8b e8 dd 59 45 08 90 <0f> 0b e8 a5 bf 71 fe 48 c7 c7 40 39 e2 8b 48 c7 c6 39 35 e2 8b ba RSP: 0018:ffffc90002d4fce8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: 0451c04f1b5fe600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802f23bba0 R08: ffffffff8175c06c R09: 1ffff920005a9f3c R10: dffffc0000000000 R11: fffff520005a9f3d R12: ffff8880247461d0 R13: ffff88801fc96894 R14: ffffc900028a2000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b03247d78 CR3: 000000002edfc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x5d9/0xb70 fs/jfs/jfs_txnmgr.c:2733 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xc74/0xca0 fs/jfs/jfs_txnmgr.c:931 Code: 45 08 90 0f 0b e8 cc bf 71 fe 48 c7 c7 40 39 e2 8b 48 c7 c6 39 35 e2 8b ba a3 03 00 00 48 c7 c1 20 46 e2 8b e8 dd 59 45 08 90 <0f> 0b e8 a5 bf 71 fe 48 c7 c7 40 39 e2 8b 48 c7 c6 39 35 e2 8b ba RSP: 0018:ffffc90002d4fce8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: 0451c04f1b5fe600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802f23bba0 R08: ffffffff8175c06c R09: 1ffff920005a9f3c R10: dffffc0000000000 R11: fffff520005a9f3d R12: ffff8880247461d0 R13: ffff88801fc96894 R14: ffffc900028a2000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f62ebd95ed8 CR3: 000000002ea32000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400