Just for completeness I have attached another rcu_preempt stall
warning from a kinux-3.17.1 kernel.
So it looks like these stall warning go back that far.
It could be that the kernel instrumentation improved enough to detect
this situation around the 3.17 kernel. I can't find any earlier
records
Just for completeness I have attached another rcu_preempt stall
warning from a kinux-3.17.1 kernel.
So it looks like these stall warning go back that far.
It could be that the kernel instrumentation improved enough to detect
this situation around the 3.17 kernel. I can't find any earlier
records
Well with the release of 4.4-rc8 I have built and
started testing the kernel.
With some luck I managed to get a rcu_preempt stall within a few hours
of testing.
Upon booting, I ran a small series of bench marks to make sure
everything is running as expected. limited regression testing and then
Well with the release of 4.4-rc8 I have built and
started testing the kernel.
With some luck I managed to get a rcu_preempt stall within a few hours
of testing.
Upon booting, I ran a small series of bench marks to make sure
everything is running as expected. limited regression testing and then
On Sun, Jan 03, 2016 at 07:27:17PM +1100, Ross Green wrote:
> I would not describe the load on this test machine as high or real time.
>
> Apart from a number of standard daemons not much more is running at all!
>
> I normally build a release kernel as soon as possible and set it running.
>
I would not describe the load on this test machine as high or real time.
Apart from a number of standard daemons not much more is running at all!
I normally build a release kernel as soon as possible and set it running.
Typically I run a series of benchmarks to confirm most things appear
to be
I would not describe the load on this test machine as high or real time.
Apart from a number of standard daemons not much more is running at all!
I normally build a release kernel as soon as possible and set it running.
Typically I run a series of benchmarks to confirm most things appear
to be
On Sun, Jan 03, 2016 at 07:27:17PM +1100, Ross Green wrote:
> I would not describe the load on this test machine as high or real time.
>
> Apart from a number of standard daemons not much more is running at all!
>
> I normally build a release kernel as soon as possible and set it running.
>
On Sun, Jan 03, 2016 at 04:29:11PM +1100, Ross Green wrote:
> Still seeing these rcu_preempt stalls on kernels through to 4.4-rc7
>
> Still have not found a sure fire method to evoke this stall, but have
> found that it will normally occur within a week of running a kernel -
> usually when it is
Still seeing these rcu_preempt stalls on kernels through to 4.4-rc7
Still have not found a sure fire method to evoke this stall, but have
found that it will normally occur within a week of running a kernel -
usually when it is quiet with light load.
Have seen similar self detected stalls all the
Still seeing these rcu_preempt stalls on kernels through to 4.4-rc7
Still have not found a sure fire method to evoke this stall, but have
found that it will normally occur within a week of running a kernel -
usually when it is quiet with light load.
Have seen similar self detected stalls all the
On Sun, Jan 03, 2016 at 04:29:11PM +1100, Ross Green wrote:
> Still seeing these rcu_preempt stalls on kernels through to 4.4-rc7
>
> Still have not found a sure fire method to evoke this stall, but have
> found that it will normally occur within a week of running a kernel -
> usually when it is
On Fri, Dec 11, 2015 at 10:17:33PM +1100, Ross Green wrote:
> I have been getting these stalls in kernels going back to 3.17.
>
> This stall occurs usually under light load but often requires several
> days to show itself. I have not found any simple way to trigger the
> stall. Indeed heavy
I have been getting these stalls in kernels going back to 3.17.
This stall occurs usually under light load but often requires several
days to show itself. I have not found any simple way to trigger the
stall. Indeed heavy workloads seems not to show the fault.
Anyone have any thoughts here?
The
I have been getting these stalls in kernels going back to 3.17.
This stall occurs usually under light load but often requires several
days to show itself. I have not found any simple way to trigger the
stall. Indeed heavy workloads seems not to show the fault.
Anyone have any thoughts here?
The
On Fri, Dec 11, 2015 at 10:17:33PM +1100, Ross Green wrote:
> I have been getting these stalls in kernels going back to 3.17.
>
> This stall occurs usually under light load but often requires several
> days to show itself. I have not found any simple way to trigger the
> stall. Indeed heavy
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