[Xen-devel] Re: [Xen-changelog] [xen-unstable] xentrace: fix tracing for 64bit guests

[Andre Przywara <andre.przywara@xxxxxxx>]

John Levon wrote:
> On Tue, Jun 10, 2008 at 03:40:21AM -0700, Xen patchbot-unstable wrote:
>
> > # HG changeset patch
> > # User Keir Fraser <keir.fraser@xxxxxxxxxx>
> > # Date 1213001138 -3600
> > # Node ID 268a9f8286f3ae259359fb3b31197e674b8c44b8
> > # Parent  5009f5d093cea2e55a3838bb7e6ee42c12b0f68a
> > xentrace: fix tracing for 64bit guests
> Is this an incompatible change (a brief scan made it seem so) ? If so,
> it probably needs a ChangeLog entry
It mostly adds additional tracepoints (marked by bit 8 as 64bit capable) 
and changing the CPUID trace, which was broken before (so this is more a 
fix). The user-space end of the traces is xentrace_format with the 
respective formats file, which I also changed. Otherwise I tried to be 
compatible.
Given the fact that this was broken since at least February or so, I 
don't think that anyone seriously uses tracing and could be concerned 
about such changes. There are still some tracepoints logged but not 
interpreted by xentrace_format, I will send a patch later.
BTW: Has anyone tools for analyzing traces? Does someone use tracing 
regularly?

Regards,
Andre.

--
Andre Przywara
AMD-OSRC (Dresden)
Tel: x84917


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