Re: [Qemu-devel] [RFC PATCH] tests: replace rem = sleep(time) with g_timer

["Alex Bennée" <alex.bennee@linaro.org>]

Greg Kurz <groug@kaod.org> writes:

> On Fri, 11 Jan 2019 16:41:41 +0100
> Paolo Bonzini <pbonzini@redhat.com> wrote:
>
>> On 11/01/19 16:28, Alex Bennée wrote:
>> >> Why not g_usleep?  It already does a while loop around nanosleep (which
>> >> returns the remaining time in the wait, like select but unlike sleep and
>> >> poll).
>> > Yeah I'm testing that now. However I have managed to trigger:
>> >
>> >   ERROR:tests/test-qht-par.c:20:test_qht: assertion failed (rc == 0): (35584 == 0)
>>
>> I think that's a good old SIGSEGV (0x8B00).
>>
>
> Hmmm... system() returns a "wait status" that can  be examined using the
> macros described in waitpid(2), and we have:
>
> /* If WIFEXITED(STATUS), the low-order 8 bits of the status.  */
> #define	__WEXITSTATUS(status)	(((status) & 0xff00) >> 8)
>
> So this rather looks like a 139 exit status to me... Not sure how
> this can happen though.

Yeah the child segfaulted in mcount while closing down. I've started a
new thread with the details of the remaining failure modes:

  Subject: Remaining CI failures
  Date: Fri, 11 Jan 2019 19:10:07 +0000
  Message-ID: <87lg3rui28.fsf@linaro.org>


--
Alex Bennée