[Pkg-xen-devel] Bug#880554: Bug#880554: Bug#880554: xen domu freezes with kernel linux-image-4.9.0-4-amd64

[Hans van Kranenburg]

On 02/27/2018 12:40 AM, Hans van Kranenburg wrote:
> [...]
> 
> But, the main thing I wanted to test is if the change would result in a
> much lower total amount of grants, which is not the case.

So,
* I couldn't reproduce a number > 32
* The proposed fix doesn't help.

There's two scenarios which can be happening:
1. Bug reporters are running a really exceptional sizing and workload.
2. "It's on fire and we don't know how big the fire is" (quote Ian)

ad 1. Christian, Valentin, can you give more specific info that can help
someone else to set up a test environment to trigger > 32 values.

ad 2. e.g. how many users run into this and do not report it, don't
understand, switch to KVM and tell their friends that Xen only is
unstable and crashes?

OTOH:

Since...
* this problem has been fixed in newer Xen already in a different way
* there's a sufficient workaround now (setting max frames)

...I doubt if it's useful (priority wise) to keep spending a lot of time
on this, since the work is really time consuming.

Hans