[Adding George, as scheduler maintainer, and Juergen as he commented,
later in this thread]
[Adding xen-users back, as the thread originated from there... sorry
for cross-posting]
On Mon, 2020-02-17 at 11:58 -0800, Sarah Newman wrote:
> If there are no merged or proposed fixes soon, it may
On Mon, 2020-02-17 at 11:58 -0800, Sarah Newman wrote:
> On 1/7/20 6:25 AM, Alastair Browne wrote:
> >
> > After the tests, we decided to stick with 4.9.0.9 kernel and 4.12
> > Xen
> > for production use running credit1 as the default scheduler.
>
> One person CC'ed appears to be having the same
Juergen -
On Mon, Feb 17, 2020 at 10:51 PM Jürgen Groß wrote:
> > Any thoughts, insights or guidance would be greatly appreciated!
> Can you check whether all vcpus of a hanging guest are consuming time
> (via xl vcpu-list) ?
> It would be interesting to see where the vcpus are running around.
On 18.02.20 01:39, Glen wrote:
Hello Sander -
If I might chime in, I'm also experiencing what we believe is the same
problem, and hope I'm not breaking any protocol by sharing a few quick
details...
On Mon, Feb 17, 2020 at 3:46 PM Sander Eikelenboom wrote:
On 17/02/2020 20:58, Sarah Newman
Hello Sander -
If I might chime in, I'm also experiencing what we believe is the same
problem, and hope I'm not breaking any protocol by sharing a few quick
details...
On Mon, Feb 17, 2020 at 3:46 PM Sander Eikelenboom wrote:
> On 17/02/2020 20:58, Sarah Newman wrote:
> > On 1/7/20 6:25 AM,
On 17/02/2020 20:58, Sarah Newman wrote:
> On 1/7/20 6:25 AM, Alastair Browne wrote:
>>
>> CONCLUSION
>>
>> So in conclusion, the tests indicate that credit2 might be unstable.
>>
>> For the time being, we are using credit as the chosen scheduler. We
>> are booting the kernel with a parameter
On 1/7/20 6:25 AM, Alastair Browne wrote:
CONCLUSION
So in conclusion, the tests indicate that credit2 might be unstable.
For the time being, we are using credit as the chosen scheduler. We
are booting the kernel with a parameter "sched=credit" to ensure that
the correct scheduler is used.
SYMPTOMS
A Xen host is found to lock up with messages on console along the
following lines:-
NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s!
Later on in the system log, reference is often made to a specific
program that happens to be running at the time, however the program
referred to is
