From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:35253) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QM097-0002G6-RX for qemu-devel@nongnu.org; Mon, 16 May 2011 11:55:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QM097-0007PJ-3E for qemu-devel@nongnu.org; Mon, 16 May 2011 11:55:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:29195) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QM096-0007P4-Oq for qemu-devel@nongnu.org; Mon, 16 May 2011 11:55:48 -0400 Message-ID: <4DD149A2.6020801@redhat.com> Date: Mon, 16 May 2011 17:58:26 +0200 From: Kevin Wolf MIME-Version: 1.0 References: <1288876539-8300-1-git-send-email-kwolf@redhat.com> <1288876539-8300-4-git-send-email-kwolf@redhat.com> <20110516111926.GA7928@elie> <4DD13EFF.80000@redhat.com> <20110516154301.GA25150@elie> In-Reply-To: <20110516154301.GA25150@elie> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [regression] qemu-system-arm: segfault in lsi_do_command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jonathan Nieder Cc: Stefan Hajnoczi , qemu-devel@nongnu.org Am 16.05.2011 17:43, schrieb Jonathan Nieder: > Kevin Wolf wrote: > >> Your instructions seemed clear enough, so I tried to reproduce your >> problem. Now I have an ARM VM with a Debian installation that works just >> fine and I have no idea what to use it for. ;-) > > So I was puzzled about this for a while, but then I had a flash > of inspiration: > > unset MALLOC_PERTURB_ > reproduction-script; # no segfault > > MALLOC_PERTURB_=37 > export MALLOC_PERTURB_ > reproduction-script; # segfaults > > Thanks. Sorry, it's easy to forget. Thanks. Still doesn't make much sense to me, the patch shouldn't change anything with respect to a malloc, but I can reproduce a segfault now. I think I'll have a closer look tomorrow. Kevin