Re: [Xen-devel] Regression, host crash with 4.5rc1

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.11.14 at 23:17, <sflist@xxxxxxxxx> wrote:
> I'm combining this action with your patch, see below. Please let me know 
> if this was incorrect.

Thanks, that's perfectly fine.

> (XEN) 'c' pressed -> printing ACPI Cx structures
> (XEN) ==cpu0==
> (XEN) active state:        C0
> (XEN) max_cstate:        C7
> (XEN) states:
> (XEN)     C1:    type[C1] latency[001] usage[00005664] method[  FFH] 
> duration[4042540627]
> (XEN)     C2:    type[C3] latency[064] usage[00000414] method[  FFH] 
> duration[447258888]
> (XEN)     C3:    type[C3] latency[096] usage[00002366] method[  FFH] 
> duration[28183588810]
> (XEN)    *C0:    usage[00008444] duration[26752178344]
> (XEN) max=0 pwr=0 urg=0 nxt=0
> (XEN) PC2[0] PC3[112428588] PC6[21869019218] PC7[0]
> (XEN) CC3[484210884] CC6[27943480555] CC7[0]

Interesting, so other than for me (perhaps due to other patches
I have in my tree) the change resulted in C states now being used
again despite mwait-idle=0, which is good. Question now is - with
this being the case, did the hangs re-occur?

Jan


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