[LITMUS^RT] domU crashes (RT-Xen)

[Sisu Xi]

Hi, Thijs:

I think Bjorn might be right. I seems to have same problem with vcpu-set
before.

vcpu-set is used to change number of VCPUs per domain, and it only can
decrease the number. Why do you need this?

For my experiment, I use
vcpu-pin  to pin a VCPU to a dedicated-core, and
vcpu-list  to check its information.

In my experiment script, I will have same domain booted with different
number of VCPUs. My solution is just use different configuration files to
boot the domain.
For example, litmus1-1.cfg, litmus1-2.cfg, litmus1-3.cfg, etc, means boot
domain litmus1 with 1,2,or 3 VCPUs.
After domain boots up, then ssh into domain and run experiments.

Hope this helps.

Sisu






On Mon, May 5, 2014 at 9:57 AM, Björn Brandenburg <bbb at mpi-sws.org> wrote:

>
> On 05 May 2014, at 11:46, Thijs Raets <thijsraets at gmail.com> wrote:
>
> > I used xl vcpu-set <VM> <VCPUS> to assign my VCPUs. If I however use the
> config file in /etc/xen and declare my VCPUs there, my domain doesn't crash
> anymore.
>
> Just a random guess (I don't know the Xen tools), but could this be
> related to CPU hotplug? LITMUS^RT does not support CPU hotplugging; all
> CPUs need to be present at boot time.
>
> - Björn
>
>
> _______________________________________________
> litmus-dev mailing list
> litmus-dev at lists.litmus-rt.org
> https://lists.litmus-rt.org/listinfo/litmus-dev
>



-- 


*Sisu Xi, PhD Candidate*

http://www.cse.wustl.edu/~xis/
Department of Computer Science and Engineering
Campus Box 1045
Washington University in St. Louis
One Brookings Drive
St. Louis, MO 63130
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