[PATCH 0/2] Enable support IPI_CPU_CRASH_STOP to be pseudo-NMI

Marc Zyngier maz at kernel.org
Tue Sep 29 06:54:49 EDT 2020


On 2020-09-29 06:50, ito-yuichi at fujitsu.com wrote:
> Hi Marc

[...]

>> >> The patch has been tested on ThunderX.
>> 
>> Which ThunderX? TX2 (at least the incarnation I used in the past) 
>> wasn't able
>> to correctly deal with priorities.
> 
> I tried it with ThunderX CN8890.
> If you tell me steps to reproduce the problem of TX2, I will
> investigate it with TX as well.

PMR_EL1 reporting fantasy values, non-uniform priority support across
the interrupt classes, and generally prone to lockups. The original TX
is a very different machine though (TX 1 and 2 only share the engraving
of the manufacturer on the heat-spreader).

         M.
-- 
Jazz is not dead. It just smells funny...



More information about the linux-arm-kernel mailing list