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Re: [Xen-devel] XEN 4.0 + 2.6.31.13 pvops kernel : system crashes on sta
| To: | Yuvraj Agarwal <yuvraj@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] XEN 4.0 + 2.6.31.13 pvops kernel : system crashes on starting 155th domU |
| From: | Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
| Date: | Tue, 27 Apr 2010 11:51:43 -0700 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 27 Apr 2010 11:52:21 -0700 |
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On 04/27/2010 12:41 AM, Yuvraj Agarwal wrote:
>
> Hi All,
>
>
>
> We are setting up a system with a large number of very small VMs for a
> project. We worked through a number of limitations, including those
> imposed by blktap2 devices and the number of dynamic IRQ (set kernel
> config NR_CPUS) etc. After these changes we were able to get to 154
> domUs (!), but as soon as we start up the 155^th domU the system crashes.
>
How does the system crash? You mean the dom0 kernel crashes?
> Does anyone know where this limit of 155 domU is coming from and how
> we can fix/increase it?
>
What does /proc/interrupts look like before the crash? How many network
and block devices do you have in dom0?
J
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