lkml.org 
[lkml]   [2007]   [Jan]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: SATA exceptions with 2.6.20-rc5
On 2007.01.19 20:41:36 -0600, Robert Hancock wrote:
> Alistair John Strachan wrote:
> >On Tuesday 16 January 2007 01:53, Jeff Garzik wrote:
> >>Robert Hancock wrote:
> >>>I'll try your stress test when I get a chance, but I doubt I'll run into
> >>>the same problem and I haven't seen any similar reports. Perhaps it's
> >>>some kind of wierd timing issue or incompatibility between the
> >>>controller and that drive when running in ADMA mode? I seem to remember
> >>>various reports of issues with certain Maxtor drives and some nForce
> >>>SATA controllers under Windows at least..
> >>Just to eliminate things, has disabling ADMA been attempted?
> >>
> >>It can be disabled using the sata_nv.adma module parameter.
> >
> >Setting this option fixes the problem for me. I suggest that ADMA defaults
> >off in 2.6.20, if there's still time to do that.
> >
>
> Can you guys that are having this problem try the attached debug patch?
> It's possible it will fix the problem, as I'm trying a private
> exec_command implementation that flushes the write by reading a
> controller register instead of reading altstatus from the drive like the
> libata core code does.

Will give it a spin in about an hour.

> If the problem still happens, I also added some more debugging in to
> help figure out what is going on, so please post full dmesg.
>
> By the way, I assume that you guys are using reiserfs or xfs, as it
> appears no other file systems issue flush commands automatically. I had
> to test this by "echo 1 > delete" on the SCSI disk in sysfs, as I am
> using ext3.

No, ext3 here, on top of md RAID1 and LVM. Oh, and one ext2, I wonder
where that comes from...

Björn
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-01-20 06:05    [W:0.102 / U:0.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site