Re: [PATCH net-next v2 5/7] selftests: rds: Fix gcov and pcap collection

[Allison Henderson <achender@kernel.org>]

On Sat, 2026-05-02 at 09:38 -0700, Jakub Kicinski wrote:
> On Fri, 01 May 2026 22:43:04 -0700 Allison Henderson wrote:
> > > point #2 my vng does have an overlayfs mounted over /tmp so the
> > > mountpoint check doesn't trigger IDK if this is what you meant 
> > > or I have a different version.  
> > 
> > I did try using --overlay-rwdir, and I think that gives rw to the
> > guest, but it's ro to the host, so we dont get to keep the pcaps post
> > mortem.
> > 
> > What we can do, if it sounds ok to you, is set up a temp scratch area
> > in the rds_logs folder so it's not mounting over /tmp, and then
> > run.sh can handle the mount with a cleanup trap addressing Sashiko's
> > concern
> > 
> > Let me know what you think?
> 
> Oh, you need these files for a post mortem analysis? I missed that
> point. IDK if there's a well established way to save extra debug info
> from the tests. runner has per_test_log_dir but I don't think it's
> exposed to tests? Until ksft has such a thing I'd probably go with
> an extra env variable to point the test to a specific dir.
> Which dir will depend on the CI harness. If var is not set - don't
> output the logs or use /tmp and clean up when test exits.

Ok, I will see if I can do some refactoring and pull the log dir out
of the test scripts and into an environment variable.  I think that
should work if I adopt the $SUDO_USER pattern the other tests use.

Thank you for the reviews!
Allison