Re: O_DIRECT produces wrong output on sparc

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From: Martin Habets <errandir_news@xxxxxxxxxxxxxxxxx>
Date: Sun, 6 Jul 2008 23:16:07 +0100

> Most of the LTP tests on direct IO fail on my sparc32 machines.
> I've testing on ext3 and ext2 filesystems, on SS10 and SS20, on 2.6.26-rc6
> and on 2.6.21. All these use the esp driver.

It's almost certainly cache coherency issues.

A missing flush_dcache_page() somewhere.
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