Messages in this thread | | | Date | Fri, 5 Dec 2003 14:20:23 +1100 | From | Nathan Scott <> | Subject | Re: Errors and later panics in 2.6.0-test11. |
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On Wed, Dec 03, 2003 at 10:25:27AM -0700, Kevin P. Fleming wrote: > Linus Torvalds wrote: > > >The ones I've seen seem to be raid-0, but Nathan (nathans@sgi.com) > >reported problems in RAID-5 under load. I didn't decode the full oops on > >that one, but it really looked like a stale "bi" bio that trapped on the > >PAGE_ALLOC debug code. > > The problem I reported was also with RAID-5, and I have also found a > problem similar to Nathan's (probably the same one) by just trying to > run bonnie++ on an XFS filesystem on DM over RAID-5, even after > formatting the XFS filesystem to forcibly align everything to RAID-5 > stripes (64K units).
FWIW, this doesn't align _everything_ (space allocations done through the XFS allocator are influenced, which means "most") -- log IO is still going to be sector aligned, as are any IOs to the four XFS allocation group header metadata structures.
cheers.
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