qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] SPARC64: immediate segfault on startup with git masterv


From: Mark Cave-Ayland
Subject: Re: [Qemu-devel] SPARC64: immediate segfault on startup with git mastervery
Date: Sun, 18 Mar 2012 10:29:26 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20120207 Icedove/3.0.11

On 18/03/12 09:44, Avi Kivity wrote:

Hi Avi/Blue,

I've just updated to git master and found that SPARC64 is broken
again; a git bisect shows the following commit causes this:


commit f3705d53296d78b14f5823472ae2add16a25a0a5
Author: Avi Kivity<address@hidden>
Date:   Thu Mar 8 16:16:34 2012 +0200

     memory: make phys_page_find() return an unadjusted section

     We'd like to store the section index in the iotlb, so we can't
     adjust it before returning.  Return an unadjusted section and
     instead introduce section_addr(), which does the adjustment later.

     Signed-off-by: Avi Kivity<address@hidden>


The symptom is that qemu-system-sparc64 segfaults immediately on
startup (note this is with an OpenBIOS image built from SVN r1048).
I've included a couple of backtraces below:


Please try the attached patch.

If it fails, can you upload bios and disk images somewhere?

Hi Avi/Blue,

I can confirm that both patches work for me and enable SPARC64 to boot - Blue, what is the VGA display issue that you mention? I didn't see any display corruption when testing on both SPARC64 and PPC.

Upon inspection I see that Blue's patch seems to be a more of a global fix, whereas Avi's seems restricted to SPARC. Does that make Blue's patch a "better" solution since it will resolve the same undiscovered issue in other targets that make the same assumption?


Many thanks,

Mark.



reply via email to

[Prev in Thread] Current Thread [Next in Thread]