On Fri, Sep 29, 2017 at 11:25:20AM +0300, Denis Kirjanov wrote:
> >> > > _Some_ of them related to the fact that during the faults RSP points
> >> > > to userspace and it leads to double-fault scenario.
> >> >
> >> > The postmortem you quote doesn't support that.
> >>
> >>
> >> I'll post a
>> > > _Some_ of them related to the fact that during the faults RSP points
>> > > to userspace and it leads to double-fault scenario.
>> >
>> > The postmortem you quote doesn't support that.
>>
>>
>> I'll post a relevant trace
Here it is:
[32065.459255] double fault: [#1] SMP
On Fri, Sep 29, 2017 at 12:02:37AM +0300, Denis Kirjanov wrote:
> On Thursday, September 28, 2017, Roman Kagan wrote:
> > On Thu, Sep 28, 2017 at 05:55:51PM +0300, Denis Kirjanov wrote:
> > > Hi, we're seeing double faults in async_page_fault.
> >
> > async_page_fault is the
On Thursday, September 28, 2017, Roman Kagan wrote:
> On Thu, Sep 28, 2017 at 05:55:51PM +0300, Denis Kirjanov wrote:
> > Hi, we're seeing double faults in async_page_fault.
>
> async_page_fault is the #PF handler in KVM guests. It filters out
> specially crafted #PF's
Dear Denis,
no, we know nothing about this problem.
Could you please create bug in opnevz jira?
Thank you,
Vasily Averin
On 2017-09-28 17:55, Denis Kirjanov wrote:
> Hi, we're seeing double faults in async_page_fault.
> _Some_ of them related to the fact that during the faults RSP points
Hi, we're seeing double faults in async_page_fault.
_Some_ of them related to the fact that during the faults RSP points
to userspace and it leads to double-fault scenario.
Is it known problem?
Thanks!
[11587.895394] Hardware name: Virtuozzo KVM, BIOS 1.9.1-5.3.2.vz7.6 04/01/2014
[11587.895394]