>>>>> On Thu, 25 Mar 2004 14:50:09 +0000, Peter Horton <phorton@bitbox.co.uk> said: >> 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 ... --- Atsushi Nemoto
