Re: [PATCH v2] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors

2015-01-09 Thread Greg Kroah-Hartman
On Mon, Dec 01, 2014 at 11:52:41AM +0100, Vitaly Kuznetsov wrote: When an SMP Hyper-V guest is running on top of 2012R2 Server and secondary cpus are sent offline (with echo 0 /sys/devices/system/cpu/cpu$cpu/online) the system freeze is observed. This happens due to the fact that on newer

[PATCH v2] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors

2014-12-01 Thread Vitaly Kuznetsov
When an SMP Hyper-V guest is running on top of 2012R2 Server and secondary cpus are sent offline (with echo 0 /sys/devices/system/cpu/cpu$cpu/online) the system freeze is observed. This happens due to the fact that on newer hypervisors (Win8, WS2012R2, ...) vmbus channel handlers are distributed

RE: [PATCH v2] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors

2014-12-01 Thread Dexuan Cui
-Original Message- From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com] Sent: Monday, December 1, 2014 18:53 PM To: KY Srinivasan; Haiyang Zhang Cc: de...@linuxdriverproject.org; Greg Kroah-Hartman; linux- ker...@vger.kernel.org; Dexuan Cui Subject: [PATCH v2] Drivers: hv: vmbus