[Crash-utility] Re: crash 4.0.9 on x86 is crashing

Dave Anderson anderson at redhat.com
Wed Sep 30 20:09:59 UTC 2009


----- "Sumeet Gupta" <meetsumeet at gmail.com> wrote:
>
> >
> > On a side-topic - is an ARM port of this utility (ie, a vmcore
> > generated on an ARM system, debugged with crash offline on X86)
> > available, or in the offing?
>
> >    None that I'm aware of.  It was brought up on this list some time
> >    ago, and I gave the requester some initial guidance on the steps
> >    to take in order to add support for a new architecture.  But I've
> >    heard nothing since then.
>
>  
> If you could give me a link to your previous mail having the guidance steps, that would be helpful.

  https://www.redhat.com/archives/crash-utility/2007-August/msg00005.html
  https://www.redhat.com/archives/crash-utility/2007-August/msg00017.html

The sketchy directions I gave were for supporting an architecture as is
done today, i.e., such that the host machine type would run its arch-specific
crash utility binary.  

The only "cross-arch" support is the x86_64's capability of running a 32-bit
x86 binary.  (and perhaps the same can be done on an ia64).  But to run an 
x86 binary to view an ARM dumpfile would be yet another level of complexity
for which there's no support.  

There is a "cross-crash" utility maintained elsewhere -- I don't know
where or not it's still active -- and which if I'm not mistaken, supports 
running an x86 crash binary to look at a MIPS vmcore.  There also was
a group doing the same kind of thing for using an x86 binary to look
at 32-bit ppc vmcores.  But again, I have no details on either initiative.

Dave




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