lkml.org 
[lkml]   [2008]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.27-rc1 (2fca5c): libata: kernel cant boot
On Sat, Oct 25 2008, Petr Vandrovec wrote:
> Jens Axboe wrote:
> >On Fri, Oct 24 2008, Elias Oltmanns wrote:
> >>Jens Axboe <jens.axboe@oracle.com> wrote:
> >>>From e598055dde1951c47c8b3522616f6ebff0ed9847 Mon Sep 17 00:00:00 2001
> >>>From: Jens Axboe <jens.axboe@oracle.com>
> >>>Date: Fri, 24 Oct 2008 09:22:42 +0200
> >>>Subject: [PATCH] libata: fix bug with non-ncq devices
> >>>
> >>>The recent commit 201f1b98822078c808b5e2d379a6ddbfc0a06ee1 to enable
> >>Wouldn't that be commit 2fca5ccf97d2c28bcfce44f5b07d85e74e3cd18e?
> >
> >Yes that is correct, the other commit is actually a private one in my
> >tree for other libata changes. Updated patch below, thanks for checking!
> >
> >From e598055dde1951c47c8b3522616f6ebff0ed9847 Mon Sep 17 00:00:00 2001
> >From: Jens Axboe <jens.axboe@oracle.com>
> >Date: Fri, 24 Oct 2008 09:22:42 +0200
> >Subject: [PATCH] libata: fix bug with non-ncq devices
>
> Hello,
> this fixes my DVD, but unfortunately NCQ devices connected to PMP are
> still dead - apparently as soon as mount() tries to do serious I/O on
> the drive. Backing out both post-2.6.28-rc1 fix as well as your
> original change brings storage back. I suspect that problem is that
> with PMP same tag cannot be (should not be? must not be?) used on
> multiple devices behind PMP - and before your change tags were allocated
> per-port, while now they are allocated per-device.

That would indeed break, this requires allocating the tag map in the

--
Jens Axboe



\
 
 \ /
  Last update: 2008-10-26 00:15    [from the cache]
©2003-2011 Jasper Spaans