Re: [PATCH] KVM: Add missing emulation failure report in kvm_mmu_page_fault()

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On Tuesday 19 January 2010 15:57:57 Gleb Natapov wrote:
> On Tue, Jan 19, 2010 at 09:54:44AM +0200, Avi Kivity wrote:
> > On 01/19/2010 05:06 AM, Sheng Yang wrote:
> > >>There are two problems with the kernel failure report.  First, it
> > >>doesn't report enough data - registers, surrounding instructions, etc.
> > >>that are needed to explain what is going on.  Second, it can flood
> > >>dmesg, which is a pretty bad thing to do.
> > >
> > >When you talking about "built-in disassembler", do you talking about
> > >"memsave/objdump" or some other more convenient way for this?
> > >
> > >And maybe we can let QEmu do some dump of the assembler code?
> > >(kvm_show_code())
> >
> > In the qemu monitor, type 'x/20i $eip' to get a disassembly of code
> > around the current instruction pointer.
> 
> If you want to see code _around_ the current instruction pointer type
> 'x/20i $eip-20' :) Or that is what I usually do.

Oh, damn, indeed very convenient... 

Thanks you all for this good tip. :)

-- 
regards
Yang, Sheng

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