Date: Wed, 9 Sep 2009 13:38:59 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Cc: Vincent Hoffman <vince@unsane.co.uk> Subject: Re: general protection fault on boot. Message-ID: <200909091339.00193.jhb@freebsd.org> In-Reply-To: <4AA7D8B3.1010203@unsane.co.uk> References: <4AA7D8B3.1010203@unsane.co.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 09 September 2009 12:32:51 pm Vincent Hoffman wrote: > Hi all, > I've been running the 8.0-BETAs in a xen virtual machine > (hvm/fully virtualised) for testing and something between r196730 and > r196746 causes a general protection fault on boot. I'll try and narrow > it down if i get a chance but I'm a a bit busy at the moment. > > backtrace is available at > http://unsane.co.uk/~jhary/freebsd/GPF-09-09-09.gif > Xen dom0 is a centos5.3 box using the xen-3.3.1 rpms from > http://www.gitco.de/linux/i386/centos/5/rpms/ if thats of any use. > > Let me know if I need to provide any more info. Hmm, can you try reverting 196737? Or actually, can you print out the value of %ebx ('p $ebx' in ddb will work I think)? I wonder if this patch would fix it: Index: pmap.c =================================================================== --- pmap.c (revision 196974) +++ pmap.c (working copy) @@ -999,7 +999,7 @@ * coherence domain. */ mfence(); - for (; sva < eva; sva += cpu_clflush_line_size) + for (; sva <= eva; sva += cpu_clflush_line_size) clflush(sva); mfence(); } else { -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200909091339.00193.jhb>