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

Joerg Roedel
2012-02-09T15:28:56Z

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

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