Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-09 Thread Don Zickus
On Fri, Jan 09, 2015 at 02:15:00PM +1100, Cyril Bur wrote: > > > > I am not too familar with it, but the kernel/watchdog.c code has calls to > > kvm_check_and_clear_guest_paused(), which is probably a good place to > > start. > > > Ah yes that, I did initially have a look at what it does when I >

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-08 Thread Cyril Bur
On Tue, 2015-01-06 at 10:01 -0500, Don Zickus wrote: > On Tue, Jan 06, 2015 at 10:53:35AM +1100, Cyril Bur wrote: > > On Mon, 2015-01-05 at 11:50 -0500, Don Zickus wrote: > > > cc'ing Marcelo > > > > > > On Mon, Dec 22, 2014 at 04:06:02PM +1100, Cyril Bur wrote: > > > > When the hypervisor pauses

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-06 Thread Don Zickus
On Tue, Jan 06, 2015 at 10:53:35AM +1100, Cyril Bur wrote: > On Mon, 2015-01-05 at 11:50 -0500, Don Zickus wrote: > > cc'ing Marcelo > > > > On Mon, Dec 22, 2014 at 04:06:02PM +1100, Cyril Bur wrote: > > > When the hypervisor pauses a virtualised kernel the kernel will observe a > > > jump > > >

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-05 Thread Cyril Bur
On Mon, 2015-01-05 at 14:09 -0800, Andrew Morton wrote: > On Mon, 22 Dec 2014 16:06:02 +1100 Cyril Bur wrote: > > > When the hypervisor pauses a virtualised kernel the kernel will observe a > > jump > > in timebase, this can cause spurious messages from the softlockup detector. > > > > Whilst t

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-05 Thread Cyril Bur
On Mon, 2015-01-05 at 11:50 -0500, Don Zickus wrote: > cc'ing Marcelo > > On Mon, Dec 22, 2014 at 04:06:02PM +1100, Cyril Bur wrote: > > When the hypervisor pauses a virtualised kernel the kernel will observe a > > jump > > in timebase, this can cause spurious messages from the softlockup detecto

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-05 Thread Andrew Morton
On Mon, 22 Dec 2014 16:06:02 +1100 Cyril Bur wrote: > When the hypervisor pauses a virtualised kernel the kernel will observe a jump > in timebase, this can cause spurious messages from the softlockup detector. > > Whilst these messages are harmless, they are accompanied with a stack trace > whi

Re: [PATCH 0/2] Quieten softlockup detector on virtualised kernels

2015-01-05 Thread Don Zickus
cc'ing Marcelo On Mon, Dec 22, 2014 at 04:06:02PM +1100, Cyril Bur wrote: > When the hypervisor pauses a virtualised kernel the kernel will observe a jump > in timebase, this can cause spurious messages from the softlockup detector. > > Whilst these messages are harmless, they are accompanied wit

[PATCH 0/2] Quieten softlockup detector on virtualised kernels

2014-12-21 Thread Cyril Bur
When the hypervisor pauses a virtualised kernel the kernel will observe a jump in timebase, this can cause spurious messages from the softlockup detector. Whilst these messages are harmless, they are accompanied with a stack trace which causes undue concern and more problematically the stack trace

[PATCH 0/2] Quieten softlockup detector on virtualised kernels

2014-11-30 Thread Cyril Bur
When the hypervisor pauses a virtualised kernel the kernel will observe a jump in timebase, this can cause spurious messages from the softlockup detector. Whilst these messages are harmless, they are accompanied with a stack trace which causes undue concern and more problematically the stack trace