Re: [Xen-devel] Cannot boot into Dom0 after reading vcpu_info in sched_credit

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Mon, 2015-10-26 at 17:28 +0000, amin.fallahi@xxxxxxxxx wrote:

> The same printk works without any problem when I use it in
> event_channel.c to print those info.
> So there are a few questions:
> 1. Any idea what is the reason of reboot and how to fix it?
> 2. Any idea how can I examine logs to find out the problem? Where and
> what should I look for?
>
You should setup a serial console. Have a look here:

http://wiki.xen.org/wiki/Xen_Serial_Console

Consider whether you need to pass the 'noreboot' parameter to Xen.

( http://xenbits.xen.org/docs/4.2-testing/misc/xen-command-line.html )

> 3. Any ideas to access per vcpu mask and pending bits in
> sched_credit.c functions (e.g. runq_insert or runq_sort)
>
Let's first see the logs.

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
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Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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