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Re: [Qemu-devel] [sparc64] qemu crashes after the "OpenBIOS for Sparc64"


From: Blue Swirl
Subject: Re: [Qemu-devel] [sparc64] qemu crashes after the "OpenBIOS for Sparc64" banner is printed
Date: Fri, 29 Aug 2008 21:37:26 +0300

On 8/28/08, Blue Swirl <address@hidden> wrote:
> On 8/28/08, Blue Swirl <address@hidden> wrote:
>  > On 8/28/08, Jakub Jermar <address@hidden> wrote:
>  >
>  > > Blue Swirl wrote:
>  >  >
>  >  > >
>  >  > > >
>  >  > > > > What host? On my amd64 and using the latest OpenBIOS I get this:
>  >  > > > >
>  >  > > >
>  >  > >
>  >  >
>  >  >  It works on amd64 for me too, so it's an ia32 issue.
>  >  >  If I sent you an ia32 coredump, would that be of any help to you?
>  >
>  >
>  > No thanks, I can no reproduce it. Maybe the reason can be found with 
> bisection.
>
>
> f2bc7e7fa175b61a20c6f10c324d7c4d68af676f is first bad commit
>  commit f2bc7e7fa175b61a20c6f10c324d7c4d68af676f
>  Author: blueswir1 <address@hidden>
>  Date:   Tue May 27 17:35:30 2008 +0000
>
>     Move non-op functions from op_helper.c to helper.c and vice versa.
>     Rearrange interrupt handling to match other targets.
>
>
>     git-svn-id: svn://svn.savannah.nongnu.org/qemu/address@hidden
>  c046a42c-6fe2-441c-8c8c-71466251a162
>
>  :100644 100644 65af9a6d879e922ad0e90bd110f087ac81032bcf
>  5e64fa43cae3b7fc12507621351cd4d0b82cb4b0 M      cpu-exec.c
>  :040000 040000 f519a87338e29fd5d3a642698fd4dd405bf19024
>  adfd50c255dccdee1098c3131cca5c20453d19f9 M      target-sparc

Surprisingly it was moving of do_interrupt to helper.c that caused the
bug. Moving it back to op_helper.c allows Sparc64 to boot. I'm still
trying to understand the real cause of the bug and to find if there is
some other way of fixing this. This kind of voodoo makes me nervous.

Attachment: fix_sparc64_on_i386.diff
Description: plain/text


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