and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4448 at arch/x86/kvm/x86.c:11235 kvm_arch_vcpu_ioctl_run+0x1e9e/0x2390 arch/x86/kvm/x86.c:11235 Modules linked in: CPU: 1 PID: 4448 Comm: syz.0.13 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1e9e/0x2390 arch/x86/kvm/x86.c:11235 Code: e8 c7 3b c1 00 e9 4e ef ff ff 44 89 f9 80 e1 07 38 c1 0f 8c db e5 ff ff 4c 89 ff e8 8c 3b c1 00 e9 ce e5 ff ff e8 b2 0c 71 00 <0f> 0b e9 da fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ae eb RSP: 0018:ffffc9000494fc48 EFLAGS: 00010283 RAX: ffffffff810fc9ae RBX: ffff888058528000 RCX: 0000000000080000 RDX: ffffc900118f5000 RSI: 00000000000003d2 RDI: 00000000000003d3 RBP: ffff88807a3f3000 R08: dffffc0000000000 R09: fffffbfff215c46a R10: fffffbfff215c46a R11: 1ffffffff215c469 R12: ffff8880585282f4 R13: ffff8880585280d8 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f38411916c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2e4beb CR3: 00000000286b7000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_vcpu_ioctl+0x887/0xb80 virt/kvm/kvm_main.c:4122 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f384338f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3841191038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f38435e6270 RCX: 00007f384338f749 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000009 RBP: 00007f3843413f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f38435e6308 R14: 00007f38435e6270 R15: 00007fff620f8f68