On Wed, Feb 05, 2014 at 11:04:42PM -0500, Kevin O'Connor wrote: > On Wed, Feb 05, 2014 at 12:44:06PM -0500, Kevin O'Connor wrote: > > On Tue, Feb 04, 2014 at 04:33:19PM +0400, Michael Tokarev wrote: > > > We have a bugreport in debian, http://bugs.debian.org/737142, > > > stating that PC-BSD does not work with seabios-1.7.4 anymore. > > > > > > I digged in, and found out that it fails only with -vga std > > > (cirrus works fine). So I bisected the issue - only changing > > > vgabios-stdvga.bin, and found this: > [...] > > This seems to be similar to the freebsd problem reported last year - > > see: > > http://lists.gnu.org/archive/html/qemu-stable/2013-03/msg00037.html > [...] > > (*) The best I can think of is to try and construct some hand crafted > > assembler that can catch buggy x86emu emulators and force a failure.. > > I have put together some assember to try and run-time test for known > broken versions of x86emu. This patch to SeaVGABIOS does seem to > catch the freebsd issue and in my tests it convinces freebsd to take a > different approach. The patch is a bit ugly though.
There hasn't been much comment, but I have pushed this patch to the main seabios repo for now. -Kevin