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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sat, 8 Mar 2014 10:13:31 +0100 From: Markus Trippelsdorf <markus@...ppelsdorf.de> To: Mike Galbraith <umgwanakikbuti@...il.com> Cc: Andy Lutomirski <luto@...capital.net>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: perf samples too long without perf running (?!?) On 2014.03.08 at 08:51 +0100, Mike Galbraith wrote: > On Fri, 2014-03-07 at 17:57 -0800, Andy Lutomirski wrote: > > On recent (3.13) kernels, I'm frequently getting messages like: > > > > perf samples too long (2503 > 2500), lowering > > kernel.perf_event_max_sample_rate to 50000 > > > > a few seconds to minutes after bootup. As far as I know, I'm not > > using perf. What's going on here? > > 14c63f17b1 > > I get those all the time too, just building kernels. I have: echo 0 > /proc/sys/kernel/perf_cpu_time_max_percent in my local startup script since that commit. -- Markus -- 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/
Powered by blists - more mailing lists