In data lunedì 7 luglio 2014 13:47:47, Greg Kroah-Hartman ha scritto: > On Mon, Jul 07, 2014 at 10:32:56PM +0200, Fabio Coatti wrote: > > I'm seeing this message in latest kernels (this is from 3.15.4, but I have > > same > > message starting from 3.15.0, IIRC): > So 3.14.0 didn't show this? > > If so, can you run 'git bisect' between those two kernel versions to try > to track down the issue? > > thanks, > > greg k-h ok, I tried to bisect as suggested and got the commit reported below. However I'm not really sure to have got the right one, as one kernel refused to compile during the last steps. However I post here the result, maybe they can be useful. Tomorrow I can retry the whole process again starting from different commits.
b9e1ab6d4c0582cad97699285a6b3cf992251b00 is the first bad commit commit b9e1ab6d4c0582cad97699285a6b3cf992251b00 Author: Stephane Eranian <[email protected]> Date: Tue Feb 11 16:20:12 2014 +0100 perf/x86/uncore: add SNB/IVB/HSW client uncore memory controller support This patch adds a new uncore PMU for Intel SNB/IVB/HSW client CPUs. It adds the Integrated Memory Controller (IMC) PMU. This new PMU provides a set of events to measure memory bandwidth utilization. The IMC on those processor is PCI-space based. This patch exposes a new uncore PMU on those processor: uncore_imc Two new events are defined: - name: data_reads - code: 0x1 - unit: 64 bytes - number of full cacheline read requests to the IMC - name: data_writes - code: 0x2 - unit: 64 bytes - number of full cacheline write requests to the IMC Documentation available at: http://software.intel.com/en-us/articles/monitoring-integrated-memory-controller-requests-in-the-2nd-3rd-and-4th-generation-intel Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Stephane Eranian <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> :040000 040000 2d628022cbc4b8969a2ec311082053510cf6eed5 79b2a1cc3ed29e4820a5ae4221b4cf603c138887 M arch -- Fabio -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
