From: Lucas Meneghel Rodrigues <lmr@redhat.com>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] tests: set MALLOC_PERTURB_ to expose memory bugs
Date: Fri, 17 May 2013 09:49:00 -0300 [thread overview]
Message-ID: <5196273C.8070800@redhat.com> (raw)
In-Reply-To: <20130517100738.GF2342@redhat.com>
On 17/05/13 07:07 AM, Daniel P. Berrange wrote:
>> If you want punishment, why not go for extra punishment?
>>
>> MALLOC_PERTURB_=$(($RANDOM % 255 + 1))
>
> That could lead to non-reproducable failures though. I think it is better
> to use a fixed value so that you're more likely to be able to reproduce
> the issue every time you run the tests.
>
> Rather than setting MALLOC_PERTURB_=1 unconditionally in the Makefile
> though, it ought to honour any existing MALLOC_PERTURB_ env variable
> the user has set. That could let automated test harness run repeatedly
> with random MALLOC_PERTURB_, while still giving a deterministic value
> for developers by default.
Indeed. I've never thought about it, thanks for sharing the insight.
next prev parent reply other threads:[~2013-05-17 12:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-17 8:52 [Qemu-devel] [PATCH] tests: set MALLOC_PERTURB_ to expose memory bugs Stefan Hajnoczi
2013-05-17 9:54 ` Markus Armbruster
2013-05-17 10:07 ` Daniel P. Berrange
2013-05-17 10:58 ` Markus Armbruster
2013-05-17 12:52 ` Lucas Meneghel Rodrigues
2013-05-17 11:16 ` Stefan Hajnoczi
2013-05-17 12:49 ` Lucas Meneghel Rodrigues [this message]
2013-05-19 16:51 ` Richard W.M. Jones
2013-05-17 11:15 ` Stefan Hajnoczi
2013-05-17 12:50 ` Lucas Meneghel Rodrigues
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