From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: [BUG] md hang at schedule in md_write_start Date: Wed, 11 Sep 2013 09:54:59 +1000 Message-ID: <20130911095459.086d532d@notabene.brown> References: <52090E6D.10104@profitbricks.com> <20130813143115.55dd27d1@notabene.brown> <5209E37D.6050107@profitbricks.com> <20130814104410.10bb2259@notabene.brown> <520B3B39.4060703@profitbricks.com> <522EFDD1.3000708@profitbricks.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/fCsZ.fzNQw/ovMxrBa_xOjf"; protocol="application/pgp-signature" Return-path: In-Reply-To: <522EFDD1.3000708@profitbricks.com> Sender: linux-raid-owner@vger.kernel.org To: Jack Wang Cc: linux-raid@vger.kernel.org, Jack Wang , Sebastian Riemer , stable@vger.kernel.org List-Id: linux-raid.ids --Sig_/fCsZ.fzNQw/ovMxrBa_xOjf Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Tue, 10 Sep 2013 13:09:05 +0200 Jack Wang wrote: > snip >=20 > Hi Neil, >=20 > I notice you send out pull request for md update, which include fix for > this bug. >=20 > I think we'd better include the fix to stable tree at least from 3.4 > above, what do you think? I don't think it is a situation that is at all like to occur in normal usag= e, so it doesn't seem justified for -stable. Do you disagree? Did you ever experience the deadlock in normal usage or only in artificial situations? >=20 > md: avoid deadlock when dirty buffers during md_stop. >=20 > > http://git.neil.brown.name/?p=3Dmd.git;a=3Dcommit;h=3D260fa034ef7a4ff8b= 73068b48ac497edd5217491 >=20 > BTW: It will be great if you could add my Reported-by and Tested-by:) Sorry I forgot those. To late to add them now. NeilBrown >=20 > Best regards, > Jack >=20 --Sig_/fCsZ.fzNQw/ovMxrBa_xOjf Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIVAwUBUi+xUznsnt1WYoG5AQIl6A/+LUbDOF8r7qR5ajyh5hyv4vbeOBFRh058 ffSTJ0McssZhj9M31f+5zW43RzrAJQnZhiQD8JiRy1ur4LUNZgA9osXub32nxFSN Q4faN2yrWK3M+ZX763OjgC8Vk/V26onO5DeewLz0phITWYyU7Ur/XOwTfuw4T+jz ADp42HRFyRp1P3DSTTxMfD7rOQnNTKaufUCNpwxkMTvs+kNyqwIbWtq6fNNZtFFv +CFsJJp8uXYykoRseowbj5JfIVqd0jLge/JWKvY0E1Nk4i110B/omJeb/v8DdHFl 8dBBqTFxxoKFncvsOv1+RFvoHhdN2cKB4abROXJkKhNEpyZpxvyL+SaGf/OiKjot ehmIzCfBfu0pf9gB+l2X9ckS/xtemKOp52GkGklXlHCoFB8wgQ9SjbwoAdnVv9pZ T23pNmES34xJdejkWWR6lZDn461eGWTezBQzaH8zTImvyDi1sGZmdcPH4oFb6vD1 zWeDgZIzAcAStiiKdANODH8u3nz+z5G5d/Gz5/FSvkAYn7SexLAt9xjzkreE530a Lq4bdWRtxXnDluN4Tq7iJMMTZIu9jb0XnNELO2vPxwRZ5vPq32sOCe1NqKnYdBHA xWAT3O5apWPWaM31eWusYhCdGk2YY3+OlCjgXNs//AdYMRDCxoLDT2rtWBMiXo+5 LWO7amZ3U+w= =XnSc -----END PGP SIGNATURE----- --Sig_/fCsZ.fzNQw/ovMxrBa_xOjf--