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From: Greg Kurz <groug@kaod.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Alex Bennée" <alex.bennee@linaro.org>,
	cota@braap.org, qemu-devel@nongnu.org, ehabkost@redhat.com
Subject: Re: [Qemu-devel] [RFC PATCH] tests: replace rem = sleep(time) with g_timer
Date: Fri, 11 Jan 2019 19:32:54 +0100	[thread overview]
Message-ID: <20190111193254.15849683@bahia.lan> (raw)
In-Reply-To: <3b4aa1f9-c18a-e2d7-abdd-f688bed9f4a1@redhat.com>

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.

> Paolo
> 

  parent reply	other threads:[~2019-01-11 18:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-11 14:38 [Qemu-devel] [RFC PATCH] tests: replace rem = sleep(time) with g_timer Alex Bennée
2019-01-11 14:43 ` Paolo Bonzini
2019-01-11 15:28   ` Alex Bennée
2019-01-11 15:41     ` Paolo Bonzini
2019-01-11 16:05       ` Alex Bennée
2019-01-11 16:06       ` Alex Bennée
2019-01-11 19:05         ` Eduardo Habkost
2019-01-11 18:32       ` Greg Kurz [this message]
2019-01-11 19:25         ` Alex Bennée

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