strace -f -c segfaults if I pthread_create and fcntl(F_GETFL)

D Wang dwang at
Mon Jul 21 16:57:55 UTC 2014

On Sat, Jul 19, 2014 at 5:02 AM, yangmin zhu <zym0017d at> wrote:
> Hi wang,
> On Fri, Jul 18, 2014 at 7:11 AM, D Wang <dwang at> wrote:
>> (Please copy dwang at on reply, as I am not subscribed to the list.)
>> What's going wrong?  Is there any workaround?  If not, is this
>> something you would fix?  (No urgency on my end, but I think this is a
>> reasonable thing to support eventually.)
> I'm not sure why did strace segfault in this situation. And I can also
> reproduce this segfault in
> strace -- version 4.5.19(CentOS 6.4 64bit).
> But I tried it in another system of strace -- version 4.8(Ubuntu 14.04
> 64bit), There aren't any segfaults and everything
> goes right, I can get the expected output in this situation.
> Maybe you can just upgrade your strace to the latest stable version
> and hava a try again.

Oops, I was on the latest CentOS 6 rpm, and I didn't think to check for
later upstream releases.  My mistake.  4.8 works for me, thanks.


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