All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kevin Wolf <kwolf@redhat.com>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [regression] qemu-system-arm: segfault in lsi_do_command
Date: Mon, 16 May 2011 17:58:26 +0200	[thread overview]
Message-ID: <4DD149A2.6020801@redhat.com> (raw)
In-Reply-To: <20110516154301.GA25150@elie>

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

  reply	other threads:[~2011-05-16 15:55 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-04 13:15 [Qemu-devel] [PULL 00/10] Block patches Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 01/10] scsi-disk: Implement rerror option Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 02/10] block: Allow bdrv_flush to return errors Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 03/10] scsi-disk: Complete failed requests in scsi_disk_emulate_command Kevin Wolf
2011-05-16 11:23   ` [Qemu-devel] [regression] qemu-system-arm: segfault in lsi_do_command Jonathan Nieder
2011-05-16 15:13     ` Kevin Wolf
2011-05-16 15:30       ` Jonathan Nieder
2011-05-16 15:43       ` Jonathan Nieder
2011-05-16 15:58         ` Kevin Wolf [this message]
2011-05-16 16:26           ` Paolo Bonzini
2011-05-16 18:35             ` Jonathan Nieder
2011-05-17  7:43             ` Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 04/10] scsi-disk: Implement werror for flushes Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 05/10] vpc: Implement bdrv_flush Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 06/10] qcow2: Invalidate cache after failed read Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 07/10] block: avoid a warning on 64 bit hosts with long as int64_t Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 08/10] ide: Handle immediate bdrv_aio_flush failure Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 09/10] virtio-blk: Handle immediate flush failure properly Kevin Wolf
2010-11-04 13:15 ` [Qemu-devel] [PATCH 10/10] scsi-disk: Fix immediate failure of bdrv_aio_* Kevin Wolf
2010-11-04 13:23 ` [Qemu-devel] Re: [PULL 00/10] Block patches Anthony Liguori

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4DD149A2.6020801@redhat.com \
    --to=kwolf@redhat.com \
    --cc=jrnieder@gmail.com \
    --cc=qemu-devel@nongnu.org \
    --cc=stefanha@linux.vnet.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.