Re: Errors when copying between drives on a SiI3114 controller under kernel 2.6.18

[Tejun Heo <htejun@gmail.com>]

Hello.

Jonathan Bell wrote:
> The problem is that when copying a file off one drive on the controller to
> another on the same controller, be it via dd or cp, the file that gets
> written becomes corrupted along with the filesystem itself. Here is an
> extract from dmesg:

That's very weird.

> [12689.451466] attempt to access beyond end of device
> [12689.451475] sdb1: rw=0, want=2339438600, limit=488392002
> [12689.451480] attempt to access beyond end of device
> [12689.451484] sdb1: rw=0, want=18446744056529747976, limit=488392002
> [12689.453822] attempt to access beyond end of device
> [12689.453831] sdb1: rw=0, want=2339438600, limit=488392002
> [12689.453834] Buffer I/O error on device sdb1, logical block 292429824
> [12689.453935] attempt to access beyond end of device
> [12689.453938] sdb1: rw=0, want=2339438600, limit=488392002
> [12689.453941] Buffer I/O error on device sdb1, logical block 292429824
[--snip--]
> I would like some help tracking down the cause of this problem as I have
> practically exhausted the methods currently at my disposal - my best guess
> at the moment is that data being written to another port is being trampled
> on somehow but only when there is I/O active on another port. I will
> continue testing to see if simultaneous writes to multiple drives on a
> controller causes the same problem.

Can you repeat the test using raw devices - /dev/sdX?  I don't think 
filesystem is at fault, so let's rule it out.  Also, please post the 
result of lspci -nvvvxxx

Thanks.

-- 
tejun