linux-kernel - Re: [PATCH] perf_events: fix bogus warn_on(_once) in perf_prepare

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1270761139.20295.3159.camel@laptop>
Date:	Thu, 08 Apr 2010 23:12:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, paulus@...ba.org,
	davem@...emloft.net, fweisbec@...il.com, robert.richter@....com,
	perfmon2-devel@...ts.sf.net, eranian@...il.com
Subject: Re: [PATCH] perf_events: fix bogus warn_on(_once) in 
 perf_prepare_sample()

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.

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