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Re: non-deterministic test failure
From: |
Mike Gran |
Subject: |
Re: non-deterministic test failure |
Date: |
Sun, 17 Jan 2010 13:49:29 -0800 (PST) |
> From: Neil Jerram <address@hidden>
> "Jose A. Ortega Ruiz" writes:
>
> > hi,
> >
> > during the last month or so, the threads test in 1.9.x has been failing
> > for me (debian unstable, x86 box) intermittently, with the message:
> >
> > FAIL: threads.test: lock-mutex: timed locking succeeds if mutex unlocked
> > within timeout
> >
> > it happens every now and then, but i haven't been able to pin down the
> > cause (i'm not familiar with the code and haven't looked at it much), or
> > to reproduce the error consistently (although with the current it seems
> > to happen almost always). am i the only one?
>
> No, I think I've seen this too. Intermittently though, as you say.
>
I get the same fairly often when I compile CFLAGS="-g3 -gdwarf-2 -O0".
I imagine that it is the "-O0" zero optimization that has something to
do with it.
-Mike