* David Ahern <[email protected]> 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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