On Fri, 15 Aug 2025 21:41:37 -0400 Daniel Zahka wrote:
> On 8/15/25 6:41 PM, Jakub Kicinski wrote:
> > We see quite a few flakes during the TSO test against virtualized
> > devices in NIPA. There's often 10-30 retransmissions during the
> > test. Sometimes as many as 100. Set the retransmission threshold
> > at 1/4th of the wire frame target.
>
> Did this issue preexist these commits:
> b25b44cd178c ("selftests: drv-net: tso: fix non-tunneled tso6 test case
> name")
> 2cfbcc5d8af9 ("selftests: drv-net: tso: fix vxlan tunnel flags to get
> correct gso_type")
> 266b835e5e84 ("selftests: drv-net: tso: enable test cases based on
> hw_features")
>
> or is this a possible regression?
I think it existed before, but it was much harder to spot flakes prior
to those fixes because the whole test was failing. Here's an example of
110 retransmits 3 weeks before those fixes:
https://netdev-3.bots.linux.dev/vmksft-fbnic-qemu/results/192642/4-tso-py/stdout
