Deltarune crashes VirtIO-FS service at start

[viktor-prutyanov]

Please give examples of "some other programs"

I have Deltarune, which is probably the only game i have on the shared that i can run on the vm at the moment but i could attempt to install notepad++ to the shared folder and check that as well.
but when i ran deltarune there wasnt any obvious error code it just exited out and the service died the same as before.

Originally posted by @GrandtheUK in #723 (comment)

[viktor-prutyanov]

I've reproduced it with virtio-win at 5fcd9ea, QEMU 6.2.0 and DELTARUNE Demo 1.0.7.0 (from Steam) installed on VirtIO-FS. The service died.

[GrandtheUK]

installing notepad++ to the virtio-fs had a few errors during the install but running it works just fine. so i'm not entirely sure whats going on.

[GrandtheUK]

I got the following in event viewer on one of the times that the service died if it is useful

[arthurrasmusson]

I have created a VM and placed the SteamLibrary folder on the VirtIO-FS drive. Upon attempting to install software from Steam to the VirtIO-FS drive immediately Steam throws "drive write error". I have also noticed attempting to copy or modify large files also results in failures such as the file becoming unreadable with a file named "?????" and/or the virtiofs.exe Windows guest service crashing.

[xiagao]

I have created a VM and placed the SteamLibrary folder on the VirtIO-FS drive. Upon attempting to install software from Steam to the VirtIO-FS drive immediately Steam throws "drive write error". I have also noticed attempting to copy or modify large files also results in failures such as the file becoming unreadable with a file named "?????" and/or the virtiofs.exe Windows guest service crashing.

There is an internal bug that virtiofs.exe quit while doing iozone test, seems they are the same.
iozone.exe -az -g 1g -y 32k -i 0 -i 1 -f Z:\zzz -b C:\yyy
@viktor-prutyanov bz number is 2024518 ,could you have a check? Thank you.

[arthurrasmusson]

@xiagao if I wanted to build kvm-guest-drivers-windows from source to get the most recent fixes is there any recent commits related to this issue worth trying?

[YanVugenfirer]

Hello All,

Please help us understanding you use cases for using virtio-fs, and thus make us virtio-fs support better.
Please participate in the discussion and add your use cases: #726

Thanks a lot,
Yan.

[xiagao]

@xiagao if I wanted to build kvm-guest-drivers-windows from source to get the most recent fixes is there any recent commits related to this issue worth trying?

Sorry,this issue isn't resolved by now.:(

[arthurrasmusson]

@xiagao It's okay. If there's something I can do to help let me know.

[arthurrasmusson]

@YanVugenfirer TL;DR: LibVF.IO is working on trying to get shared filesystem between host and guest working for WINE-like functionality in a GPU accelerated VM.

[savchenko]

Might be related: after the video type was changed (once!) to VirtIO/OpenGL-enabled Spice, virtiofs.exe keeps crashing on transfers. Windows file dialogue shows error 0x800703E3:

Reverting back to QXL does not help.

[YanVugenfirer]

@savchenko By any chance is the crash dump for the process created?

[savchenko]

@YanVugenfirer , VM in question is destroyed, but I'll try to reproduce and provide some additional information.

[YanVugenfirer]

@savchenko Thanks a lot!

[YanVugenfirer]

@savchenko BTW: I suggest to open a new issues with a description of a problem as it is a different from the original one.

[savchenko]

@YanVugenfirer turns out it has nothing to do with GPU. I was able to reproduce it reliably, details are in the #760