[Virtio-fs] xfstest results for virtio-fs on aarch64

[Dr. David Alan Gilbert]

* qi.fuli at fujitsu.com (qi.fuli at fujitsu.com) wrote:
> Hello,
> 

Hi,

> We have run the generic tests of xfstest for virtio-fs[1] on aarch64[2],
> here we selected some tests that did not run or failed to run,
> and we categorized them, basing on the reasons in our understanding.

Thanks for sharing your test results.

>   * Category 1: generic/003, generic/192
>     Error: access time error
>     Reason: file_accessed() not run
>   * Category 2: generic/089, generic/478, generic/484, generic/504
>     Error: lock error
>   * Category 3: generic/426, generic/467, generic/477
>     Error: open_by_handle error
>   * Category 4: generic/551
>     Error: kvm panic

I'm not expecting a KVM panic; can you give us a copy of the 
oops/panic/backtrace you're seeing?

>   * Category 5: generic/011, generic/013
>     Error: cannot remove file
>     Reason: NFS backend
>   * Category 6: generic/035
>     Error: nlink is 1, should be 0
>   * Category 7: generic/125, generic/193, generic/314
>     Error: open/chown/mkdir permission error
>   * Category 8: generic/469
>     Error: fallocate keep_size is needed
>     Reason: NFS4.0 backend
>   * Category 9: generic/323
>     Error: system hang
>     Reason: fd is close before AIO finished

When you 'say system hang' - you mean the whole guest hanging?
Did the virtiofsd process hang or crash?

> 
> We would like to know if virtio-fs does not support these tests in
> the specification or they are bugs that need to be fixed.
> It would be very appreciated if anyone could give some comments.

It'll take us a few days to go through and figure that out; we'll
try and replicate it.

Dave

> 
> [1] qemu: https://gitlab.com/virtio-fs/qemu/tree/virtio-fs-dev
>      start qemu script:
>      $VIRTIOFSD -o vhost_user_socket=/tmp/vhostqemu1 -o 
> source=/root/virtio-fs/test1/ -o cache=always -o xattr -o flock -d &
>      $VIRTIOFSD -o vhost_user_socket=/tmp/vhostqemu2 -o 
> source=/root/virtio-fs/test2/ -o cache=always -o xattr -o flock -d &
>      $QEMU -M virt,accel=kvm,gic_version=3 \
>          -cpu host \
>          -smp 8 \
>          -m 8192\
>          -nographic \
>          -serial mon:stdio \
>          -netdev tap,id=net0 -device 
> virtio-net-pci,netdev=net0,id=net0,mac=XX:XX:XX:XX:XX:XX \
>          -object 
> memory-backend-file,id=mem,size=8G,mem-path=/dev/shm,share=on \
>          -numa node,memdev=mem \
>          -drive 
> file=/root/virtio-fs/AAVMF/AAVMF_CODE.fd,if=pflash,format=raw,unit=0,readonly=on 
> \
>          -drive file=$VARS,if=pflash,format=raw,unit=1 \
>          -chardev socket,id=char1,path=/tmp/vhostqemu1 \
>          -device 
> vhost-user-fs-pci,queue-size=1024,chardev=char1,tag=myfs1,cache-size=0 \
>          -chardev socket,id=char2,path=/tmp/vhostqemu2 \
>          -device 
> vhost-user-fs-pci,queue-size=1024,chardev=char2,tag=myfs2,cache-size=0 \
>          -drive if=virtio,file=/var/lib/libvirt/images/guest.img
> 
> [2] host kernel: 4.18.0-80.4.2.el8_0.aarch64
>      guest kernel: 5.4-rc1
>      Arch: Arm64
>      backend: NFS 4.0
> 
> Thanks,
> QI Fuli
> 
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--
Dr. David Alan Gilbert / dgilbert at redhat.com / Manchester, UK