On Saturday 20 February 2010 5:19:39 pm Attilio Rao wrote: > 2010/1/27 Brandon Gooch <jamesbrandongo...@gmail.com>: > > The machine, a Dell Optiplex 755, has been locking up recently. The > > situation usually occurs while using VirtualBox (running a 64-bit > > Windows 7 instance) and doing anything else in another xterm (such as > > rebuilding a port). I've been unable to reliably reproduce it (I'm in > > an X session and the machine will not panic "properly"). > > > > However, while rebuilding Xorg today at ttyv0 and runnning > > VBoxHeadless on ttyv1, I managed to trigger what I believe is the > > lockup. > > > > I've attached a textdump in hopes that someone may be able to take a > > look and provide clues or instruction on debugging this. > > I think that jhb@ saw a similar problem while working on nVidia driver > or the like. > Not sure if he made any progress to debug this.
That was due to a weird bug where I was accidentally zero'ing the local APIC due to a then-bug in sg_pager.c (it was forcing the VM system to clear the pages it mapped by accident). That should not be the explanation for this. -- John Baldwin _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"