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Re: [Xen-devel] arm: xl vcpu-pin leads to oom-killer slashing processes

On 05/12/2018 10:59, Andrii Anisov wrote:
Hello Julien,


On 05.12.18 12:49, Julien Grall wrote:
I am not sure to understand what is the relation between the two.
Me confused as well. I just notified about my observations.

What is the latest Xen commit where the oom-killer does not trigger?
I didn't bisect it nor digged into it. I'm trying to measure IRQ latency as Stefano did.

How much memory do you have in Dom0? Do you have any memory hungry process running?
Dom0 has 3Gb RAM. But it's not about the memory, I'm pretty sure.Until I decided to pin vcpus, I did all my routine without any issues.

Well, at least the kernel thinks it does not have anymore memory (see the call trace).

What do you mean by all your routine? How much work did you do on the platform before triggering oem-killer?

Looking at your log, you don't seem to have swap. With all your routine, how often are you close to the maximum memory?


Julien Grall

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