Re: Intermittent failure for PR18699 test case

[Bryce McKinlay <mckinlay at redhat dot com>]

TJ Laurenzo wrote:

> FYI -
> I was just running the testsuite to verify some patches and
> experienced an intermittent failure:
>   FAIL: PR18699 execution - gij test
> The log shows a "WARNING: Timed out" just prior to this.
> The bug in question is marked resolved but is related to threading
> issues which would explain the intermittent results.
>
> So far, I've run the libjava testsuite three times and experienced the
> problem once.  The machine didn't have any load on it other than
> running the testsuite, so I think it was legitimately hung for that
> one time.
>  
What hardware/software configuration is this? I don't recall seeing this 
fail, but you're correct in that this is the type of test that can fail 
intermittently if there is some kind of race condition somewhere.

If you are able to reproduce the hang (perhaps by running the test case 
manually), the best way to diagnose it would be to attach in gdb and get 
a backtrace for each thread.

Bryce