On Thu, 8 Sept 2022 at 16:54, Patrick Venture <vent...@google.com> wrote: > On Wed, Sep 7, 2022 at 10:40 AM Peter Maydell <peter.mayd...@linaro.org> > wrote: >> Have a look in the source at what exactly the assertion >> failure in libqtest.c is checking for -- IIRC it's a pretty >> basic "did we open a socket fd" one. I think sometimes I >> used to see something like this if there's an old stale socket >> lying around in the test directory and the randomly generated >> socket filename happens to clash with it.
> Thanks for the debugging tip! I can't reproduce it at this point. I > saw it 2-3 times, and now not at all. So more than likely it's > exactly what you're describing. Mmm. We do clean up the socket after ourselves in the test harness, but I think what can happen is that if a test case crashes then the cleanup doesn't happen. Then there's a stale file left in the build tree, and then you only hit it if you get unlucky with PID allocation on a future run... -- PMM