On Wed, 8 Sep 2004, Peter Stuge wrote:
> On Tue, Sep 07, 2004 at 08:15:47PM -0400, [EMAIL PROTECTED] wrote: > > That message is from the original freebios. I was thinking that > > shadowing is not corretly set up and that maybe the > > segment is write-protected. After setting up shadowing, > > the chipset my turn on write protection by default, anyway. I > > don't know how to turn write protection off specifically for the > > C00000 segment. So far, the only reference that I can find about > > write protection is in the Pentium developer's manual. It says to > > have bit 16 of CR0 be zero to turn off write protection. > > That's controlled by the descriptor table flags for the particular > descriptor in use. (cs/ds/es) ah,well, sorta. There are north bridge issues. There are lots of ways in the x86 architecture for writes to fail ... > Trying to write to protected memory would cause a page fault that > LB probably doesn't recover from. (Are PF:s handled at all?) no, that's not necessarily the case ... ron _______________________________________________ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios