Linux perf bug massively affects NAS performance

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Hi folks,

lately, there has been an article on Slashdot about a serious perf bug 
in Linux 2.6:
http://it.slashdot.org/article.pl?sid=09/01/15/049201
(brief summary: kernel 2.6 sucks at high disk IO loads)

My impression is that debian-arm is affected by this problem A LOT.

I've got a NSLU2 and a Qnap-109, both of them are running debian/ARM. 
They are both NAS devices, so continous access to large files is the 
most important use case. The amount of main memory in these systems is 
limited, so efficient virtual memory management and paging is essential.

Other related links about the topic are:
http://bugzilla.kernel.org/show_bug.cgi?id=12309
http://bugzilla.kernel.org/show_bug.cgi?id=7372
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/131094
http://linux.slashdot.org/article.pl?sid=08/10/27/1212214

IMHO, it'd be highly desirable to fix this problem ASAP. It'd make all 
these NAS devices much more powerful. Please let me know if there is 
anything I can contribute to help.

Cheers,
G.