Re: [libvirt] [PATCH v2] vz: allow to start vz driver without host cache info

On Tue, Jul 11, 2017 at 03:20:38PM +0300, Mikhail Feoktistov wrote: > > On 11.07.2017 12:22, Martin Kletzander wrote: >> On Tue, Jul 11, 2017 at 04:59:05AM -0400, Mikhail Feoktistov wrote: >>> Show warning message instead of fail operation. >>> It happens if kernel or cpu doesn't support reporting cpu cache info. >>> In case of Virtuozzo file "id" doesn't exist. >> >> What is your kernel version? >> >  3.10.0-514.16.1.vz7.30.10 >> Is there another way of getting the information about the cache ID? >> Maybe we need to parse the name of the cache directory 'index2' >> would be >> id 2 maybe?  If there is no other way, then this fix is fine (as most >> drivers do the same thing), but I would rather fix it if that's >> possible.  Unfortunately the cache information is structured stupidly >> compared to other kernel-provided topology-related information. > Only kernel 4.11 reports cache ID (maybe 4.10, but not checked) > 4.9 doesn't report ID Oh, so that is just older kernel.  OK, then. Reviewed-by: Martin Kletzander <mkletzan(a)redhat.com&gt; > ID doesn't match to indexN > Yeah, in vanilla it is number per level and easily deductible, but not really something we want to add into the code.