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* kernel on x86 breaks frysk test suite
@ 2008-03-10 10:55 Mark Wielaard
  0 siblings, 0 replies; only message in thread
From: Mark Wielaard @ 2008-03-10 10:55 UTC (permalink / raw)
  To: frysk


Be careful upgrading your fedora kernel, at least on x86.
The way the frysk test suite does a teardown seems to play havoc with
the new kernel leading to strange kill messages and TestRunner just
completely stopping.

With on x86 a make check almost always fails (x86_64
seems fine though). Downgrading to makes make check
(at least in frysk-core) completely clean again. With the newer kernel
tests fail (and the TestRunner gets killed!) somewhat randomly. It is
easily reproducible through something like:
./TestRunner -r 100 frysk.proc.TestTaskTerminateObserver
Which makes things a little worse by throwing in some kills of its own.
And it always fails within a couple of rounds with as output:
  frysk.sys.Errno$Einval: tkill: Invalid argument (task 0)

I filed it as bug #5902. It is somewhat nasty in that it isn't very
predictable where/when it breaks things. And I spend some time trying to
bisect patches till it occurred to me that it might have been the kernel



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2008-03-10 10:55 kernel on x86 breaks frysk test suite Mark Wielaard

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