On Fri, 2014-02-07 at 02:05 +0400, Michael Tokarev wrote:
07.02.2014 01:20, Moyer, Keith пишет:
Thank you all for your quick, helpful replies! This was about to become a headache for us, so the identification of a fix so quickly is fantastic.
On Thu, 2014-02-06 at 02:31 -0600, Gerd Hoffmann wrote:
That commit made seabios size (default qemu config, gcc 4.7+) jump from 128k to 256k in size because the code didn't fit into 128k any more.
Makes sense. Thanks for the explanation.
On Thu, 2014-02-06 at 02:37 -0600, Ian Campbell wrote:
I think this was fixed in Xen with http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=5f2875739beef3a75c7a7e85...
I have confirmed that applying that patch to our Xen sources fixes the problem.
I've filed a bug with Debian's Xen package on this matter, with the hope they'll backport that commit. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737905
Meanwhile I just uploaded another release of seabios to Debian archive which brings size of bios.bin back to 128Kb, by disabling XCHI (usb3.0) and PVSCSI -- 1.7.4-3.
So things should be working fine on debian side again now (at least on sid), even without patching xen.
And it looks like we should re-think what we remove from our (qemu) "stripped-down" bios - as it turns out, Xen actually uses bios from qemu unchanged... But it is really really fragile - on my build (gcc 4.7), with 2 options removed, 128Kb is 99.7% used ;)
Do the seabios packages also produce a non-stripped down seabios for newer qemu? If so then I think the Xen package should just pick that one up instead.
Ian.