On Mon, 2011-01-24 at 12:06 -0500, Yaroslav Halchenko wrote:
> would it fail with a blank 'int main() {return 0;}'? I just wonder on which
> program it could be reliably replicated? Could you please provide a complete
> recipe?
Pedro, would you be able to provide the information which Yaroslav asked for,
please?
> I have rebuilt
> google-perftools-1.5
> with noopt,nostrip and linked vw (vowpal-wabbit) against profiler -- no
> segfaults...
>
> NB I have not tried in a clean squeeze... just on my squeeze/sid/experimental
> box
Was that on i386 and amd64? Having had a look at the package this
evening, it's README.gz says:
<quote>
2) On x86-64 64-bit systems, while tcmalloc itself works fine, the
cpu-profiler tool is unreliable: it will sometimes work, but sometimes
cause a segfault. I'll explain the problem first, and then some
workarounds.
Note that this only affects the cpu-profiler, which is a
google-perftools feature you must turn on manually by setting the
CPUPROFILE environment variable. If you do not turn on cpu-profiling,
you shouldn't see any crashes due to perftools.
</quote>
Regards,
Adam
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