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SubjectRe: New Areca driver in 2.6.16-rc6-mm2
Date
Dear All,

I had met this problem at my Fab before.
But this problem seem not came from the issue of driver version change.
I had test it with my older version of areca driver and it cause same
problem.
I did this testing with EXT2 file system and I got dump messages as
following message.
But When I used EXT3 file system and run same testing, it worked fine.

attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016
attempt to access beyond end of device
sdb1: rw=0, want=134744080, limit=128002016

Now I have time to research this problem.
Hope that I can give you more information about it.

Best Regards
Erich Chen

----- Original Message -----
From: "Matti Aarnio" <matti.aarnio@zmailer.org>
To: "Chris Caputo" <ccaputo@alt.net>
Cc: "Dax Kelson" <dax@gurulabs.com>; <linux-kernel@vger.kernel.org>;
<erich@areca.com.tw>
Sent: Wednesday, March 22, 2006 11:37 AM
Subject: Re: New Areca driver in 2.6.16-rc6-mm2


> On Tue, Mar 21, 2006 at 11:49:32PM +0000, Chris Caputo wrote:
>> On Sun, 19 Mar 2006, Dax Kelson wrote:
>> > On Sat, 18 Mar 2006, Andrew Morton wrote:
>> > > SCSI fixes
>> > >
>> > > +areca-raid-linux-scsi-driver-update4.patch
>> > >
>> > > Update areca-raid-linux-scsi-driver.patch
>> >
>> > Has anyone had a chance to review this new update to see if it now
>> > passes
>> > muster for mainline inclusion?
>>
>> Unfortunately when the new driver is applied to 2.6.15.6 a bonnie++ test
>> results in the following endless spew:
>
> Curious... I didn't encounter this phenomena, but then, my 0.75 TB
> raid5 volume is practically empty...
>
> For the development phase it would be most useful, if the driver
> would be available in similar "this will compile for your currently
> running kernel, or some other you care to name and have its config.h
> files at hand" as e.g. Nvidia drivers are (except that arcmsr is
> in "all source form", whereas NV has this magic object blob..)
>
> Such would allow (at least for me) to have a wee bit faster cycle
> with "pick vendor kernel, add this and that custom module"
>
> I was apalled to learn that full cycle kernel compilation takes
> _hours_ these days (Pentium-4 HT, 2.4 GHz, 2 GB memory -- and it
> is about as slow as my first kernel compilation experience with
> a 386/33MHz way back in ...)
>
>> ...
>> attempt to access beyond end of device
>> sdb1: rw=0, want=134744080, limit=128002016
>> ...
>>
>> I have emailed the details to Erich.
>>
>> Chris
>
> /Matti Aarnio

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