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Re: [Xen-devel] [BUG] BSoD on Windows XP installation
Il 29/01/2014 13:00, Stefano Stabellini ha scritto:
Hi Paolo,
we have been trying to fix a BSOD that would happen during the Windows
XP installation, once every ten times on average.
After many days of bisection, we found out that commit
commit 149f54b53b7666a3facd45e86eece60ce7d3b114
Author: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Fri May 24 12:59:37 2013 +0200
memory: add address_space_translate
breaks Xen support in QEMU, in particular the Xen mapcache.
The reason is that after this commit, l in address_space_rw can span a
page boundary, however qemu_get_ram_ptr still calls xen_map_cache asking
to map a single page (if block->offset == 0).
The appended patch works around the issue by reverting to the old
behaviour.
What do you think is the right fix for this?
Maybe we need to add a size parameter to qemu_get_ram_ptr?
Yeah, that would be best but the patch you attached is fine too with a
FIXME comment.
Paolo
I should add that this problem is time sensitive because is a blocker
for the Xen 4.4 release (Xen is in RC2 right now).
Thanks for your feedback,
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