linux-ext4 - Re: 64k Page size + ext3 errors

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Message-ID: <802670.26931.qm@web81303.mail.mud.yahoo.com>
Date:	Mon, 28 Jul 2008 16:44:15 -0700 (PDT)
From:	tirumalareddy marri <tirumalareddymarri@...oo.com>
To:	Dan Williams <dan.j.williams@...el.com>, sandeen@...deen.net
Cc:	linux-raid@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: 64k Page size + ext3 errors

Dan,
  Sure  I will post my driver with some cleanup done.
Thanks,
Marri

----- Original Message ----
From: Dan Williams <dan.j.williams@...el.com>
To: sandeen@...deen.net
Cc: tirumalareddy marri <tirumalareddymarri@...oo.com>; linux-raid@...r.kernel.org; linux-ext4@...r.kernel.org
Sent: Monday, July 28, 2008 1:04:39 AM
Subject: Re: 64k Page size + ext3 errors

On Sun, Jul 27, 2008 at 6:52 PM,  <sandeen@...deen.net> wrote:
>> I am using HW accelerated XOR engine for RAID-5 . I am seeing EXT3-fs
>> errors when I use 64K page size. When I use 4K page size I don't see any
>> issue. As many of you know, we will get better performance when we store
>> bigger files like videos.
>
> Do you think it is specific to the filesystem on raid-5?  Have you tested
> w/o md?  I'd be a little surprised if the problem is at the raid layer (so
> cc'ing the ext3/4 list), but maybe you tested that already.
>
> Which arch is it, and which kernel?  How big is the filesystem?  With full
> geometry information it might be easier for someone to reproduce & debug.
>

Marri, can you post your XOR driver the problem may be there.

Thanks,
Dan
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