Re: xl create/save throwing errors

[Petr Beneš <w1benny@xxxxxxxxx>]

On Wed, Feb 19, 2025 at 5:04 PM Petr Beneš <w1benny@xxxxxxxxx> wrote:
>
> Hello,
>

To add more information and observations:

I'm running Xen 4.20-rc on a MFF Dell Optiplex, CPU is i5-12500T (6
cores, 12 threads). I have allocated 8 cores for dom0. Now:

- xl saving 4 vms, each with 4 VCPUs tend to fail
- xl saving 4 vms, each with 2 VCPUs didn't fail so far
- xl saving 8 vms, each with 2 VCPUs didn't fail so far
- xl saving 12 vms, each with 2 VCPUs didn't fail either

Note that there's always enough memory for all the VMs + dom0.

Also, I have observed new error lines when xl create is being executed
in parallel:
```
libxl: error: libxl_qmp.c:1399:qmp_ev_fd_callback: Domain 89:error on
QMP socket: Connection reset by peer
libxl: error: libxl_qmp.c:1438:qmp_ev_fd_callback: Domain 89:Error
happened with the QMP connection to QEMU
```