[Bug 219903] New: [6.14.0_rc7] TX timeout and ping failed after change the tx queue length

[bugzilla-daemon@xxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=219903

            Bug ID: 219903
           Summary: [6.14.0_rc7] TX timeout and ping failed after change
                    the tx queue length
           Product: Virtualization
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: low
          Priority: P3
         Component: kvm
          Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx
          Reporter: leiyang@xxxxxxxxxx
        Regression: No

How reproducible:
100%

Steps to reproduce
1.Boot guest with virtio-net device and enable queue_reset:

-device
virtio-net-pci,id=net0,netdev=hostnet0,queue_reset=on,bus=pcie.0,addr=0x5 \
-netdev
tap,id=hostnet0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,vhost=on \


2.Ping external host after change the tx size, ping failed

[root@guest ~]# ethtool -G eth0 tx 8
[root@guest ~]# ping 10.72.136.90 -c 10
PING 10.72.136.90 (10.72.136.90) 56(84) bytes of data.