On Wed, 13 Feb 2008 16:05:59 +0100, Kris Van Hees wrote:
> On Fri, Feb 08, 2008 at 05:27:53PM -0800, Roland McGrath wrote:
> > Thanks for the testing.  Note that most of the crasher tests are for
> > intermittent race bugs that might take a long time to show.  They look for
> > TESTTIME environment variable to set how long to keep trying, and the
> > defaults are pretty short.  You should run those for long periods to
> > achieve confidence that you won't hit any crashes.
> 
> So far, no crashes with TESTTIME set to 3600 and 7200.  This is on 32-bit,
> 2.6.24 kernel, running as a full virtualized guest in Xen.  The testing on
> a physical box is slated for today.

Your utrace-ptrace-compat kernel is not the full utrace implementation which
the testsuite targets, it is only its `regset' part.  Therefore some (all?)
of the crashers just do not apply to such non-full-utrace kernels.

Even if it would be the full utrace kernel all the crasher problems were
already fixed except clone-get-signal which has unfortunately very rare
reproducibility.  It reproduces probably best on s390.  Still it was seen even
on x86_64.  It is unfortunately very probably your machine just did not
reproduce it.

crasher testcases are left marked as `crasher' even after their fix as if you
run them on arbitrary (possibly old) kernel it may surprise you by its crash.

The x86_64-cs vanilla crasher does not apply to you as you run on 32-bit.

Sure thanks for the verifications.


Regards,
Jan

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