Re: [perfmon2] [PATCH] perf_events: fix bogus warn_on(_once) in perf_prepare_sample()

[Peter Z. <pe...@in...>]

On Thu, 2010-04-08 at 23:08 +0200, Stephane Eranian wrote:
> 
> > There's various things that do indeed rely on the perf buffer to always
> > be u64 aligned, so this warning isn't bogus at all.
> >
> I assume this has to do with the wrap-around detection.

Nah, mostly dealing with architectures that don't do well with unaligned
accesses.