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Re: [Xen-devel] [PATCH for-xen-4.5 v3 00/16] xen: Break multiboot (v1) dependency and add multiboot2 support

>>> On 08.10.14 at 19:52, <daniel.kiper@xxxxxxxxxx> wrote:
> Patch #13 reveals a bug which probably was introduced between commit
> 3e2331d271cc0882e4013c8f20398c46c35f90a1 (VT-d: suppress UR signaling for
> further desktop chipsets) and 61fdda7acf3de11f3d50d50e5b4f4ecfac7e0d04
> (x86/HVM: properly bound x2APIC MSR range). Xen crashes at video_endboot()
> because earlier scrub process wipes vga_console_info data (sic!). So,
> it means that at least page containing this structure was freed mistakenly
> somewhere. Interestingly this issue appears on legacy BIOS machines only.
> EFI platforms work as usual. It is possible to workaround this bug by
> passing no-bootscrub to xen.gz.

Giving a little more detail on how exactly things crash would be rather
useful to make suggestions. Or if you intend to figure this out all by
yourself, then I think you would have better done so before posting
this series.


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