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SubjectRe: [BUG] raw over raid5: BUG at drivers/block/ll_rw_blk.c:1967
David Mansfield wrote:
>
> Hi everyone,
>
> I haven't been able to run raw over raid5 since 2.5.30 or so, but every
> time I'm about to report it, a new kernel comes out and the problem
> changes completely :-( Now I'm finally going to start getting out the info
> it the hopes someone can fix it. The oops was triggered by attempting to
> read from /dev/raw/raw1 (bound to /dev/md0) using dd. System info
> follows oops:
>
> ------------[ cut here ]------------
> kernel BUG at drivers/block/ll_rw_blk.c:1967!

I don't think you told us the kernel version?

There have been recent fixes wrt sizing of the BIOs which the
direct-io layer sends down. So please make sure that you're
testing Linus's current -bk, or 2.5.42 plus

http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.42/2.5.42-mm2/broken-out/dio-bio-add-fix-1.patch

Either that, or raid5 is bust ;)
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