[Kernel-packages] [Bug 1246216] Re: perf samples too long (2519 2500), lowering kernel.perf_event_max_sample_rate to 50000

Since todays kernel update (3.13.0-46.76 - 3.13.0-46.77) I also see this message in my kern.log It has not been there before and I'm just wondering what will happen if this continues as the too long value seems to be continiously rising and the sample rate is being lowered Mar 3 07:14:57 sigma

[Kernel-packages] [Bug 1246216] Re: perf samples too long (2519 2500), lowering kernel.perf_event_max_sample_rate to 50000

This message appears for me exactly before the wireless connection drops on my Asus Z87-Pro motherboard. The wireless card in question is the: Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01) Using Ubuntu 14.04 64 Bit. Kerne l3.13.0-26-generic --

[Kernel-packages] [Bug 1246216] Re: perf samples too long (2519 2500), lowering kernel.perf_event_max_sample_rate to 50000

This message is due to the following commit: commit 14c63f17b1fde5a575a28e96547a22b451c71fb5 Author: Dave Hansen dave.han...@linux.intel.com Date: Fri Jun 21 08:51:36 2013 -0700 perf: Drop sample rate when sampling is too slow https://lkml.org/lkml/2013/5/29/640 ** Changed in: linux