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

[Thijs Raets]

Hi,

You're right I don't "need" vcpu-set, I already started using the config
files now, I consider my problem solved.

Thanks all!


2014-05-06 18:05 GMT+02:00 Sisu Xi <xisisu at gmail.com>:

> 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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>
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