Hello all,
I am using Xen 4.12.0-rc3 commit 365aabb6e5023cee476adf81106729efd49c644f on an R-Car M3 to boot two DomU that have two vCPUs each.
The DomU are loaded on a CPU pool with 3 Arm Cortex-A53 pCPUs using the Credit2 scheduler.
The first DomU is hard pinning vCPU0 and vCPU1 on CPUs 3 and 4 of the R-Car M3 while the second DomU is pinning vCPU0 and vCPU1 on CPUs 5 and 4 respectively.
After reading the documentation, I thought this sort of configuration was possible and that the CPU weight would determine which DomU gets more time on pCPU 4.
Much to my surprise, when I load 4 memory read intensive tasks on each vCPU, both my DomU are killed without any apparent sort of error.
I am new to Xen, so there is clearly something I am not understanding.
The main question would be if having two DomU both pin a vCPU to the same pCPU is possible. If it is possible is there any way I can debug as to why my DomU are being scrapped?
I thank everyone for their time.
Best regards,
Jairo
