>>>>> On Thu, 25 Mar 2004 14:50:09 +0000, Peter Horton <firstname.lastname@example.org>
>> This seems to be the same problem as reported by Peter Horton as
>> while ago; in his case that was with PIO IDE.
phorton> Looks like it.
phorton> The fix we're using on Cobalt's at the moment is below
phorton> (required for 2.4.x and 2.6.x).
phorton> Fixing it this way fixes the problem with both page cache
phorton> pages and swap pages.
phorton> For more details see the threads "Kernel 2.4.23 on Cobalt
phorton> Qube2 - area of problem" and "Instability / caching problems
phorton> on Qube 2 - solved ?" from December last year.
Thanks, I agree (maybe I should read ML messages more carefully ...)
This patch fixes my problem also, thanks, but ... I do not think
r4k_flush_icache_page is a best place to fix since my test program is
not related I-cache at all.
I'm quite sure that it's a kernel bug and may cause problems if any
PIO block device (PIO ide, ide-cs, mtdblock, etc.) are used on CPUs
which have d-cache aliases (not only MIPS). We need a correct fix ...