Re: perf: record segfaults for cycles event when collecting data ona VM

[Joerg Roedel]

On Thu, Feb 09, 2012 at 03:32:53PM +0100, Joerg Roedel wrote:
> Yeah, right. Guest samples may also show up intentionally when the event
> modifiers are used. So crashing on machine==NULL needs to be fixed.

Hmm, on the other hand, there is no way to specify guest symbol
information to the regular perf subcommands except for perf-kvm. Without
that information perf can not resolve any GUEST_KERNEL samples, so in
the end there is no point in setting perf_guest to true except for
perf-kvm, no?


	Joerg

-- 
AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/