[dm-devel] Fwd: [linux-lvm] 2.4.20 + xfs +lvm2 = raid0_make_request bug

Joe Thornber joe at fib011235813.fsnet.co.uk
Sun Feb 2 12:03:01 UTC 2003


On Wed, Jan 29, 2003 at 08:32:44PM +0100, Svetoslav Slavtchev wrote:
> useing lvm2(with lvm1 everything is working perfect for the last 6 months)
>  when i try to mount a xfs filesystem wich is on 
> lv over soft raid-0, i'm getting just like in
> 2.5.2x - 2.5.4x (i didn't try later kernels) :
> 
> ############################
> raid0_make_request bug: can't convert block across chunks or bigger than 16k
> 25181311 4
> raid0_make_request bug: can't convert block across chunks or bigger than 16k
> 25181343 4
> ############################
> 
> is this know problem, is it fixed ?

This is an XFS problem, search the list for info on using the new
journal format.  The reason it has been working for LVM1 is that XFS
has some hard coding in that recognises the LVM1 major number, and
drops back journal to to 512byte chunks.

> i thought that the problem exist only in 2.5 kernel

This shouldn't be a problem with 2.5.  If you have seen similar
problems please send me details.

- Joe




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