[ovs-dev] Possible Regression due to "ossfuzz: Break flow test target into two targets to speed up fuzzing."
blp at ovn.org
Fri Oct 12 15:54:49 UTC 2018
On Fri, Oct 12, 2018 at 03:44:51PM +0300, Ilya Maximets wrote:
> > Hi,
> > it seems that travis-ci is failing due to a testsuite regression introduced
> > by 1adcbcee8f4c ("ossfuzz: Break flow test target into two targets to speed
> > up fuzzing.").
> > https://travis-ci.org/openvswitch/ovs/jobs/439811394
> Hi Simon,
> As it was already said, this is not the patch that produces the issue.
> I'm able to reproduce '2649: ovn -- 3 HVs, 3 LS, 3 lports/LS, 1 LR'
> test failure locally by restricting to use only one CPU core with taskset.
> So, I bisected the issue and found that the fist patch that fails is:
> 2e5cdb4b1392 ("OVN: add buffering support for ip packets").
> Issue happens only if single core assigned:
> taskset -c 2 make check TESTSUITEFLAGS='2649' #FAILS
> taskset -c 2-3 make check TESTSUITEFLAGS='2649' #OK
> As Travis has no much CPU resources it fails all the time.
> I'm not much familiar with OVN code/tests, hope above information will
> be useful for your investigation.
I can reproduce this too, with your hint (although it's test 3309, not
The failure is because a lot of expected packets don't show up:
ovn.at:12: wait failed after 10 seconds
It needs more looking into.
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