virtio-fs: Visual Studio 2022 cannot compile files in the file system of virtiofs mounted.

Describe the bug A clear and concise description of what the bug is.

Hi, I have encountered a strange problem.

Visual Studio 2022 cannot compile files in the file system of virtiofs. But Explorer can read and write normally and works very well.

Thanks.

To Reproduce Steps to reproduce the behaviour:

Install Arch Linux
Setup Virt
Install Windows 2k16 on KVM (win2k16)
Install virtio-win-0.1.240.iso
Install winfsp
Install VS 2022
Create a new project on a virtiofs filesystem
Compile

Expected behavior A clear and concise description of what you expected to happen. VS 2022 build successful

Screenshots If applicable, add screenshots to help explain your problem.

Host:

Disto: [e.g. Fedora, Ubuntu, Proxmox]
- Arch Linux
Kernel version
- 6.6.10-arch1-1
QEMU version
- QEMU emulator version 8.2.0

QEMU command line

/usr/bin/qemu-system-x86_64 -name guest=win2k16,debug-threads=on -S -object {"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-6-win2k16/master-key.aes"} -machine pc-q35-8.2,usb=off,vmport=off,dump-guest-core=off,memory-backend=pc.ram,hpet=off,acpi=on -accel kvm -cpu host,migratable=on,hv-time=on,hv-relaxed=on,hv-vapic=on,hv-spinlocks=0x1fff -m size=33554432k -object {"qom-type":"memory-backend-memfd","id":"pc.ram","share":true,"x-use-canonical-path-for-ramblock-id":false,"size":34359738368} -overcommit mem-lock=off -smp 8,sockets=1,dies=1,cores=8,threads=1 -uuid 3dd94888-1ac4-46e2-8664-e09094998597 -no-user-config -nodefaults -chardev socket,id=charmonitor,fd=32,server=on,wait=off -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-shutdown -global ICH9-LPC.disable_s3=1 -global ICH9-LPC.disable_s4=1 -boot strict=on -device {"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"} -device {"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"} -device {"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"} -device {"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"} -device {"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"} -device {"driver":"pcie-root-port","port":21,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x2.0x5"} -device {"driver":"pcie-root-port","port":22,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x2.0x6"} -device {"driver":"pcie-root-port","port":23,"chassis":8,"id":"pci.8","bus":"pcie.0","addr":"0x2.0x7"} -device {"driver":"pcie-root-port","port":24,"chassis":9,"id":"pci.9","bus":"pcie.0","multifunction":true,"addr":"0x3"} -device {"driver":"pcie-root-port","port":25,"chassis":10,"id":"pci.10","bus":"pcie.0","addr":"0x3.0x1"} -device {"driver":"pcie-root-port","port":26,"chassis":11,"id":"pci.11","bus":"pcie.0","addr":"0x3.0x2"} -device {"driver":"pcie-root-port","port":27,"chassis":12,"id":"pci.12","bus":"pcie.0","addr":"0x3.0x3"} -device {"driver":"pcie-root-port","port":28,"chassis":13,"id":"pci.13","bus":"pcie.0","addr":"0x3.0x4"} -device {"driver":"pcie-root-port","port":29,"chassis":14,"id":"pci.14","bus":"pcie.0","addr":"0x3.0x5"} -device {"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"} -device {"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.3","addr":"0x0"} -blockdev {"driver":"file","filename":"/home/qx/images/win2k16.qcow2","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"} -blockdev {"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage","backing":null} -device {"driver":"ide-hd","bus":"ide.0","drive":"libvirt-2-format","id":"sata0-0-0","bootindex":1} -blockdev {"driver":"file","filename":"/home/qx/data/data/tmp/Package/Windows/app.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"} -blockdev {"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"} -device {"driver":"ide-cd","bus":"ide.1","drive":"libvirt-1-format","id":"sata0-0-1","bootindex":2} -chardev socket,id=chr-vu-fs0,path=/var/lib/libvirt/qemu/domain-6-win2k16/fs0-fs.sock -device {"driver":"vhost-user-fs-pci","id":"fs0","chardev":"chr-vu-fs0","tag":"Z","bus":"pci.5","addr":"0x0"} -netdev {"type":"tap","fd":"34","id":"hostnet0"} -device {"driver":"e1000e","netdev":"hostnet0","id":"net0","mac":"52:54:00:b2:0f:09","bus":"pci.1","addr":"0x0"} -chardev pty,id=charserial0 -device {"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0} -chardev spicevmc,id=charchannel0,name=vdagent -device {"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"com.redhat.spice.0"} -device {"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"} -audiodev {"id":"audio1","driver":"spice"} -spice port=5901,addr=127.0.0.1,disable-ticketing=on,image-compression=off,seamless-migration=on -device {"driver":"qxl-vga","id":"video0","max_outputs":1,"ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"bus":"pcie.0","addr":"0x1"} -device {"driver":"ich9-intel-hda","id":"sound0","bus":"pcie.0","addr":"0x1b"} -device {"driver":"hda-duplex","id":"sound0-codec0","bus":"sound0.0","cad":0,"audiodev":"audio1"} -global ICH9-LPC.noreboot=off -watchdog-action reset -chardev spicevmc,id=charredir0,name=usbredir -device {"driver":"usb-redir","chardev":"charredir0","id":"redir0","bus":"usb.0","port":"2"} -chardev spicevmc,id=charredir1,name=usbredir -device {"driver":"usb-redir","chardev":"charredir1","id":"redir1","bus":"usb.0","port":"3"} -device {"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.4","addr":"0x0"} -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny -msg timestamp=on

libvirt version
- 9.10.0

libvirt XML file

<domain type="kvm">
<name>win2k16</name>
<uuid>3dd94888-1ac4-46e2-8664-e09094998597</uuid>
<metadata>
<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
  <libosinfo:os id="http://microsoft.com/win/2k16"/>
</libosinfo:libosinfo>
</metadata>
<memory unit="KiB">33554432</memory>
<currentMemory unit="KiB">33554432</currentMemory>
<memoryBacking>
<source type="memfd"/>
<access mode="shared"/>
</memoryBacking>
<vcpu placement="static">8</vcpu>
<os>
<type arch="x86_64" machine="pc-q35-8.2">hvm</type>
</os>
<features>
<acpi/>
<apic/>
<hyperv mode="custom">
  <relaxed state="on"/>
  <vapic state="on"/>
  <spinlocks state="on" retries="8191"/>
</hyperv>
<vmport state="off"/>
</features>
<cpu mode="host-passthrough" check="none" migratable="on">
<topology sockets="1" dies="1" cores="8" threads="1"/>
</cpu>
<clock offset="localtime">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
<timer name="hypervclock" present="yes"/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<pm>
<suspend-to-mem enabled="no"/>
<suspend-to-disk enabled="no"/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type="file" device="disk">
  <driver name="qemu" type="qcow2"/>
  <source file="/home/qx/images/win2k16.qcow2"/>
  <target dev="sda" bus="sata"/>
  <boot order="1"/>
  <address type="drive" controller="0" bus="0" target="0" unit="0"/>
</disk>
<disk type="file" device="cdrom">
  <driver name="qemu" type="raw"/>
  <source file="/home/qx/data/data/tmp/Package/Windows/app.iso"/>
  <target dev="sdb" bus="sata"/>
  <readonly/>
  <boot order="2"/>
  <address type="drive" controller="0" bus="0" target="0" unit="1"/>
</disk>
<controller type="usb" index="0" model="qemu-xhci" ports="15">
  <address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/>
</controller>
<controller type="pci" index="0" model="pcie-root"/>
<controller type="pci" index="1" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="1" port="0x10"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0" multifunction="on"/>
</controller>
<controller type="pci" index="2" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="2" port="0x11"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x1"/>
</controller>
<controller type="pci" index="3" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="3" port="0x12"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x2"/>
</controller>
<controller type="pci" index="4" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="4" port="0x13"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x3"/>
</controller>
<controller type="pci" index="5" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="5" port="0x14"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x4"/>
</controller>
<controller type="pci" index="6" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="6" port="0x15"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x5"/>
</controller>
<controller type="pci" index="7" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="7" port="0x16"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x6"/>
</controller>
<controller type="pci" index="8" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="8" port="0x17"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x7"/>
</controller>
<controller type="pci" index="9" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="9" port="0x18"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x0" multifunction="on"/>
</controller>
<controller type="pci" index="10" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="10" port="0x19"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x1"/>
</controller>
<controller type="pci" index="11" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="11" port="0x1a"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x2"/>
</controller>
<controller type="pci" index="12" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="12" port="0x1b"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x3"/>
</controller>
<controller type="pci" index="13" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="13" port="0x1c"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x4"/>
</controller>
<controller type="pci" index="14" model="pcie-root-port">
  <model name="pcie-root-port"/>
  <target chassis="14" port="0x1d"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x5"/>
</controller>
<controller type="sata" index="0">
  <address type="pci" domain="0x0000" bus="0x00" slot="0x1f" function="0x2"/>
</controller>
<controller type="virtio-serial" index="0">
  <address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/>
</controller>
<filesystem type="mount" accessmode="passthrough">
  <driver type="virtiofs"/>
  <source dir="/home/qx/data/data/tmp/Package"/>
  <target dir="Z"/>
  <address type="pci" domain="0x0000" bus="0x05" slot="0x00" function="0x0"/>
</filesystem>
<interface type="network">
  <mac address="52:54:00:b2:0f:09"/>
  <source network="default"/>
  <model type="e1000e"/>
  <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/>
</interface>
<serial type="pty">
  <target type="isa-serial" port="0">
    <model name="isa-serial"/>
  </target>
</serial>
<console type="pty">
  <target type="serial" port="0"/>
</console>
<channel type="spicevmc">
  <target type="virtio" name="com.redhat.spice.0"/>
  <address type="virtio-serial" controller="0" bus="0" port="1"/>
</channel>
<input type="tablet" bus="usb">
  <address type="usb" bus="0" port="1"/>
</input>
<input type="mouse" bus="ps2"/>
<input type="keyboard" bus="ps2"/>
<graphics type="spice" autoport="yes">
  <listen type="address"/>
  <image compression="off"/>
</graphics>
<sound model="ich9">
  <address type="pci" domain="0x0000" bus="0x00" slot="0x1b" function="0x0"/>
</sound>
<audio id="1" type="spice"/>
<video>
  <model type="qxl" ram="65536" vram="65536" vgamem="16384" heads="1" primary="yes"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/>
</video>
<redirdev bus="usb" type="spicevmc">
  <address type="usb" bus="0" port="2"/>
</redirdev>
<redirdev bus="usb" type="spicevmc">
  <address type="usb" bus="0" port="3"/>
</redirdev>
<watchdog model="itco" action="reset"/>
<memballoon model="virtio">
  <address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>
</memballoon>
</devices>
</domain>

VM:

Windows version
- Windows Server 2016
Which driver has a problem
- VirtioFS
Driver version or commit hash that was used to build the driver

Additional context Add any other context about the problem here.

virtio-win / kvm-guest-drivers-windows

virtio-fs: Visual Studio 2022 cannot compile files in the file system of virtiofs mounted. #1024