On Fri, 28 Dec 2001, Matthew Dillon wrote:
> Ok, I have more information on Nils problem. First of all, Soren's > patch greatly reduced the rate of corruption. It took 25 loops of > Nils 'cp' test to generate the corruption. > > However, Soren's patch did not fiix the corruption. The same exact > corruption is occuring. In Nils case it is always the same exact > location in VM -- a certain bit (or byte) in the middle of the nfsnode > hash table. Hardware watch points indicate that the cpu is NOT modifying > this location, so I really doubt that it is a kernel bug. > > From this and from reading a number of other postings about VIA chipsets > I believe that Soren's original patch (which I guess is the official > VIA chipset patch) does not completely solve the VIA chipset's problems. > I also believe, from reading some of the reference material that has > been posted, that this corruption is not limited to the 686[A/B] but > may also occur in earlier VIA chipsets. Agreed, it looks like the "MWQ bug" isn't addressed by soren's patch. The decription at http://www.networking.tzo.com/net/software/readme/faqvl019.htm doesn't give enough info to patch it, but this post to the linux-kernel mailing list seems to shed more light on what needs to be done: http://www.uwsg.iu.edu/hypermail/linux/kernel/0112.0/1421.html Perhaps someone on a faster connection than I can snag a copy of whatever version of linux is current and see the exact patch that went in. Mike "Silby" Silbersack To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-stable" in the body of the message
