Aaron Lehmann wrote:

>I've been seeing this about every day for the past month or so, while
>tracking 2.6.0-test*. Usually by the time I feel like reporting it I'm
>a few revisions behind and decide to upgrade before complaining about
>it. Now I'm running -test9 and it still happens. This happens every
>few day or so under normal load and every few minutes under high I/O
>load. I'm running an x86 system with a 3ware RAID5:
>
>Badness in as_completed_request at drivers/block/as-iosched.c:919
>

This warning is harmless. Here is a patch against 2.6.0-test9-mm2.
Please test that kernel as it has a few other important as-iosched
fixes. Thanks.