Messages in this thread | | | Date | Thu, 12 Sep 2013 15:40:58 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 14/16] perf kvm: reuse some code of perf_kvm__timerfd_create() |
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* David Ahern <dsahern@gmail.com> wrote:
> On 9/12/13 6:08 AM, Ingo Molnar wrote: > > > >btw., I tried to build perf on a really old distro that has no timerfd.h, > >and got: > > Right. I hit that last week or so with RHEL5 as a build server. > > timerfd was introduced before perf so any system with perf capability > will also have timerfd. So the problem is strictly building perf on an > older system. [...]
I'm booting new kernels on an old system and I'm building it there.
So it's new kernel, new perf source and binary, old userspace.
Thanks,
Ingo
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