>From what was posted on the linux-kernel list the problem is the OS doing the wrong thing not the hardware. I originally asked the question (albeit not worded as clearly as I should have) because if Microsoft and Linux programmers made the same mistake, might FreeBSD have also.
> -----Original Message----- > From: Kenneth Culver [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 31, 2002 10:42 AM > To: Terry Lambert > Cc: David Malone; Cameron, Frank; '[EMAIL PROTECTED]'; > '[EMAIL PROTECTED]' > Subject: Re: AMD AGP Bug > > > > There's actually a seperate TLB bug, but FreeBSD doesn't > > trigger that one, either (Linux can tickle it, when there > > are certain specific circumstances met). > > > Well, I think I know what you're talking about, linux > allocates agpgart > memory without setting a "non-cacheable" bit, and then the > agp card writes > to that memory, but the cpu cached it already, which makes > the cache wrong > or something like that, and causes the crashes/hangs. I know this is a > greatly simplified version of the real problem, but I think this is a > linux bug not necesarily an amd bug. > > Ken > To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
