Re: [Xen-devel] [PATCH 00/13] Valgrind patches for hypercalls

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2013-12-02 at 10:46 +0000, Andrew Cooper wrote:
> On 02/12/13 10:37, Ian Campbell wrote:
> > On Fri, 2013-11-29 at 11:45 +0000, Ian Campbell wrote:
> >> On Thu, 2013-11-28 at 18:56 +0000, Andrew Cooper wrote:
> >>> This set of patches teaches valgrind about new hypercalls.
> >>>
> >>> Valgrind can now completely inspect xc_domain_save()/restore()
> >>>
> >>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> >>> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> >> Thanks, these look OK to me on a quick skim and build so I've sent them
> >> upstream to: https://bugs.kde.org/show_bug.cgi?id=328205
> > Which has just resulted in them being applied, thanks to Bart Van
> > Assche.
> >
> > Thanks,
> > Ian.
> >
> >
> 
> Wow - that was quick going.

Yes!

> I wonder how well valgrind now does with xl create...

It used to work for me, that's what I was doing when I first implemented
this stuff.

IIRC it doesn't play especially well with the deaemonisation aspect for
some reason, but you can keep it in the foreground and/or disable the
monitoring bit (both on the cmdline) and it works ok, for at least bog
standard PV and HVM guests.

That was then of course.

Ian.


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