[Crash-utility] crash and libvirt, and more

[Dave Anderson]

Richard W.M. Jones wrote:
> On Tue, Aug 19, 2008 at 11:06:49AM +0100, Bryn M. Reeves wrote:
>> Sounds like another possible use for the "debuginfo-server" idea that
>> comes up periodically. There are a couple of things that could benefit
>> from a centralised way of managing a collection of kernel (or other
>> package) debug data.
> 
> Sounds interesting.
> 
> What I was actually trying (not successfully yet) was to see if I
> could make a fake binary which just contains debug info for the few
> kernel structures I care about.  Starting with task_struct as an
> example.  Then it should be a simple matter of loading those symbols
> using 'symbol-file'.
> 
> These "fake binaries" should be quite a lot smaller than an entire
> vmlinux.
> 
> As I said I haven't actually made this work yet.
> 
> Also working on a virDomainMemoryPeek patch for crash.
> 
> Rich.
> 

Out of curiousity, any reason why a libvirt interface couldn't be
created that accesses guest pseudo-physical addresses?  And does
the existing interface accept vmalloc addresses, or only unity-mapped
kernel virtual addresses?

Dave