On 25.08.14 15:45, Aravinda Prasad wrote: > It is possible for multi-processors to experience machine > check at or about the same time. As per PAPR, subsequent > processors serialize waiting for the first processor to > issue the ibm,nmi-interlock call. > > The second processor retries if the first processor which > received a machine check is still reading the error log > and is yet to issue ibm,nmi-interlock call. > > This patch implements this functionality. > > Signed-off-by: Aravinda Prasad <aravi...@linux.vnet.ibm.com>
This patch doesn't make any sense. Both threads will issue an HCALL which will get locked inside of QEMU, so we'll never see the case where both hypercalls get processed at the same time. Alex
