[lkml]   [2012]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 0/4 V13] Avoid soft lockup message when KVM is stopped by host
On Tue, Feb 14, 2012 at 10:29:31AM -0500, Eric B Munson wrote:
> On Wed, 08 Feb 2012, Eric B Munson wrote:
> >
> > When a guest kernel is stopped by the host hypervisor it can look like a soft
> > lockup to the guest kernel. This false warning can mask later soft lockup
> > warnings which may be real. This patch series adds a method for a host
> > hypervisor to communicate to a guest kernel that it is being stopped. The
> > final patch in the series has the watchdog check this flag when it goes to
> > issue a soft lockup warning and skip the warning if the guest knows it was
> > stopped.
> >
> > It was attempted to solve this in Qemu, but the side effects of saving and
> > restoring the clock and tsc for each vcpu put the wall clock of the guest behind
> > by the amount of time of the pause. This forces a guest to have ntp running
> > in order to keep the wall clock accurate.
> Avi,
> Is this set fit for merging or is there something else you want changed?


On Message-ID: <20120210160536.GA23363@amt.cnet>, i asked:

How is the stub getting included for other architectures again?

 \ /
  Last update: 2012-02-14 16:43    [W:0.079 / U:4.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site