From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:38493 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750703AbdAWMLZ (ORCPT ); Mon, 23 Jan 2017 07:11:25 -0500 Subject: Re: gdb log of crashed "btrfs-image -s" To: Christoph Groth References: <87o9z7dzvd.fsf@grothesque.org> <42eaf69b-c444-fc50-2128-3a1fbd18b335@suse.de> <871sw2cbzb.fsf@grothesque.org> <6f5ba97f-0c13-4ad1-fda3-a10db7024ef7@suse.de> <87lgu9cu2v.fsf@grothesque.org> <877f5tcmgk.fsf@grothesque.org> <87wpdsc03i.fsf_-_@grothesque.org> <87fukgcenb.fsf@grothesque.org> Cc: Chris Murphy , Btrfs BTRFS From: Goldwyn Rodrigues Message-ID: <6e996667-04f7-6688-563d-aacded918945@suse.de> Date: Mon, 23 Jan 2017 06:09:53 -0600 MIME-Version: 1.0 In-Reply-To: <87fukgcenb.fsf@grothesque.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="oHlq506UPN54Qfxe8Uk2U7t6jP6HaWNHt" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --oHlq506UPN54Qfxe8Uk2U7t6jP6HaWNHt Content-Type: multipart/mixed; boundary="Knif1wGe4JpFOjlmTeLNL9R37b3nb1w9S"; protected-headers="v1" From: Goldwyn Rodrigues To: Christoph Groth Cc: Chris Murphy , Btrfs BTRFS Message-ID: <6e996667-04f7-6688-563d-aacded918945@suse.de> Subject: Re: gdb log of crashed "btrfs-image -s" References: <87o9z7dzvd.fsf@grothesque.org> <42eaf69b-c444-fc50-2128-3a1fbd18b335@suse.de> <871sw2cbzb.fsf@grothesque.org> <6f5ba97f-0c13-4ad1-fda3-a10db7024ef7@suse.de> <87lgu9cu2v.fsf@grothesque.org> <877f5tcmgk.fsf@grothesque.org> <87wpdsc03i.fsf_-_@grothesque.org> <87fukgcenb.fsf@grothesque.org> In-Reply-To: <87fukgcenb.fsf@grothesque.org> --Knif1wGe4JpFOjlmTeLNL9R37b3nb1w9S Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 01/18/2017 02:11 PM, Christoph Groth wrote: > Goldwyn Rodrigues wrote: >> Thanks Christoph for the backtrace. I am unable to reproduce it, but >> looking at your backtrace, I found a bug. Would you be able to give it= >> a try and check if it fixes the problem? >=20 > I applied your patch to v4.9, and compiled the static binaries. > Unfortunately, it still segfaults. (Perhaps your fix is correct, and > there's a second problem?) I attach a new backtrace. Do let me know i= f > I can help in another way. I looked hard, and could not find the reason of a failure here. The bakctrace of the new one is a little different than previous one, but I am not sure why it crashes. Until I have a reproduction scneario, I may not be able to fix this. How about a core? However, a core will have values which you are trying to mask with sanitize. --=20 Goldwyn --Knif1wGe4JpFOjlmTeLNL9R37b3nb1w9S-- --oHlq506UPN54Qfxe8Uk2U7t6jP6HaWNHt Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBAgAGBQJYhfKaAAoJEAE1niapr6PJOO8H/37LCx7sqSySRiATr2vkRPyf iw6m0iXrXZmbXiZNaTum5EDbcR9H+J3tiwQS5PZHxnz9ym5ZQxInRQ9fq5ARURvR 62XB+bZxQSyAUwenhzOmWDv8J9cxCMzN5ElgnP5+VLivQXsM624jrq+xXgxNmG+j 2R6YrPwtGyhelD9Mr8+4JQ2fPC+7jjLfVTKIeFVKN04m/X4EN0u8Lh1MS4X8FoKd jZEenFBp9zRD/IT2aem3bVr/xPwADNr1le2kCGN3u44tJOWmHdzXcFR02PzsSbx3 PBusQkMEiHZn7PyT0VItZyishhUWbkObQJMOEjiPbMESkM4OkGN6t44jeQQVnhw= =lFq3 -----END PGP SIGNATURE----- --oHlq506UPN54Qfxe8Uk2U7t6jP6HaWNHt--