Re: New Areca driver in 2.6.16-rc6-mm2

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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" <[email protected]>
To: "Chris Caputo" <[email protected]>
Cc: "Dax Kelson" <[email protected]>; <[email protected]>; <[email protected]>
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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