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Bug 1948374 - [virtio-win][virtio-fs] Hit error when deleting files/folders on shared dir(nfs mount)
Summary: [virtio-win][virtio-fs] Hit error when deleting files/folders on shared dir(n...
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: virtio-win
Version: 9.0
Hardware: x86_64
OS: Windows
Target Milestone: rc
: 9.0
Assignee: Yvugenfi@redhat.com
QA Contact: xiagao
Depends On: 2018072
Blocks: 1948357 1978122
TreeView+ depends on / blocked
Reported: 2021-04-12 06:15 UTC by xiagao
Modified: 2022-08-16 12:23 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1978122 (view as bug list)
Last Closed: 2022-08-16 12:23:07 UTC
Type: ---
Target Upstream Version:

Attachments (Terms of Use)

Description xiagao 2021-04-12 06:15:35 UTC
Description of problem:
Boot up a Win2019 vm with virtio fs shared dir(nfs backend),try to create/rename/delete file or folders on the file system, hit a couple of errors.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.mount a nfs dir on host.
(host)mount  /home/nfs_c
(nfs conf) /home/nfs *(rw,sync,no_root_squash)

2.start virtiofs daemon with shared dir on nfs mount dir
# /usr/libexec/virtiofsd --socket-path=/tmp/vhostqemu1 -o source=/home/nfs_c/virtiofs_test/ -d

3.boot up vm with vhost-user-fs-pci device
-chardev socket,id=char0,path=/tmp/vhostqemu1 \
-device vhost-user-fs-pci,chardev=char0,tag=myfs_11,bus=pci.11,queue-size=1024 \
-m 4G \
-object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
-numa node,memdev=mem \

4.install viofs driver,register virtiofs service and start it
C:\> sc create VirtioFsSvc binpath="(your binary location)\virtiofs.exe" start=auto 
depend="WinFsp.Launcher/VirtioFsDrv" DisplayName="Virtio FS Service"

c:\> sc start VirtioFsSv

5.create and rename a file/folder on the shared volume(Z:)

6.delete a file/folder

Actual results:
After step 5,
Failed with "The file xxx is too large for the destination file system."

After step 6, delete succeed, but a ".nfs0000000..." file is created after refresh the windows and can't create a file/folder any more.

Expected results:

Additional info:

Comment 1 xiagao 2021-04-13 06:15:31 UTC
Can reproduce this bug on RHEL8.4.0


Comment 2 xiagao 2021-06-23 01:34:39 UTC
Could you set DTM as it was set ITR to 8.5.0?


Comment 3 xiagao 2021-07-14 06:41:29 UTC
Hit error like https://bugzilla.redhat.com/show_bug.cgi?id=1978122#c3.

Comment 4 Gal Hammer 2021-08-03 07:20:23 UTC
Postpone to 8.6 for now as full resolution might requires changes in the virtiofsd as well.

Comment 7 Viktor Prutyanov 2022-01-17 20:55:06 UTC
This PR https://github.com/virtio-win/kvm-guest-drivers-windows/pull/688 should fix the bug.

Comment 9 xiagao 2022-02-17 03:47:51 UTC
Can reproduce with virtio-win-prewhql-0.1-215.
Verify with virtio-win-prewhql-0.1-216.


Comment 10 xiagao 2022-03-25 03:42:34 UTC
(In reply to xiagao from comment #9)
> Can reproduce with virtio-win-prewhql-0.1-215.
> Verify with virtio-win-prewhql-0.1-216.
> pkg:
> qemu-kvm-6.2.0-7.el9.x86_64
> kernel-5.14.0-56.el9.x86_64
> RHEL-9.0.0-20220210.0

Reproduce steps:
In the mounted directory.
1. create a 1k txt file.
2. delete it.
-----> a ".nfs0000000..." file is created after refresh the windows

Verify steps:
1. create a 1k txt fiel and  a 29k file and rename them.
2. delete them and refresh "z:\"
-----> there is no  ".nfs0000000..."

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