Hi Sebastian,
On Fri, 3 Jun 2016 at 09:38:00, Sebastian Andrzej Siewior wrote:
>> We've been working to integrate/support a new system board and have
>> noticed boot-up stalls running 3.18.29-rt30 (in
> particular when the kernel is configured with PREEMPT_RT_FULL - as
> diagnostics markers, PREEMPT_RT_RTB and non-RT appear to be fine). The
> boot-up stalls appear fairly frequently - approximately once every
> 8-10 cold boots - and occur very early in the boot process. The SHB board houses dual Xeon E5-2680 v3 parts (i.e., 2x12 cores for a combined 24 cores).
>>
>> My question is regarding the v3.18 tip (currently v3.18.34) and
>> whether an RT release for this version might be
> worthwhile to try. We'd consider moving to a v4 test branch, but
> ultimately we'd like to test a new v3.18 in order to determine impact
> in the field. I hesitate to ask this but am wondering if anyone might have some feedback on the time frame for an RT refresh on the v3.18 tip?
>
> I am not aware of any lockup on v3.18-RT tree. I just tried a few boot up on two of machines and it looks good.
> Don't have currently any control on anything >4 cores.
Thx. We've done further testing and see that v3.18.9 does not suffer the same problem.
I also have some dump information (all "unable to handle kernel paging request") and was wondering what the best way to pass this along to the list might be? Would a compressed archive of the (4) log files be OK to send along?
-David
>> Thanks in advance,
>> -David
>
> Sebastian
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