Re: [Xen-users] Xen Boot Error post Rebuild

[Ray Joseph <ray3960852@xxxxxxxxx>]

Dario,

Thank you.  Xen booted up this morning.  I tried many times and it failed, then, twice in a row it succeeded. 

What log can I pull that will help understand this and where/how can I post it?

To address your question on "locks up":  When the boot fails, a message is repeated sent to the console -

Jun  2 12:48:23 MyComp kernel: [   12.192095] [drm:gen8_irq_handler [i915]] *ERROR* Fault errors on pipe A
Jun  2 12:48:23 MyComp kernel: [   12.192095] : 0x00000100

This repeats rapidly, filling up the screen and rolling.  I can not break it other than turning off the power.  Prior to this, there is another message:

Jun  2 12:48:23 MyComp kernel: [   11.072093] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])

This addresses the Intel [i915].  When I lspci, it reports an Intel 5500 HD graphics controller.  The i915 is a graphics chip.  i915 is not addressed in the PCI report. 

Additionally, I see syslogs in /var/log.  There is one with yesterday's date, and 4 others sequenced back to June 3.  I also copied some from before that, they seemed to show a failed boot as the last lines were 'funny'.

Please suggest what would be good to post, and where, and if any security issues.

Ray

On Mon, Jun 5, 2017 at 3:18 AM, Dario Faggioli <dario.faggioli@xxxxxxxxxx> wrote:

On Sun, 2017-06-04 at 02:11 -0500, Ray Joseph wrote:
> I was wrong again.  I did install Xen 4.9.
>
> I booted twice and both failed.  The third time I booted, it
> succeeded. No changes were made to anything. 
>
This is all very strange... Something seems to be up, but it's hard to
tell what.

When, as you say, the "boot fails" or "locks up", what we need to see,
in order to help you diagnose and solve the problem, is the actual
error showing on screen when that happens.

Actually, what would really help is the full boot log which needs
something like a serial console to be captured:
https://wiki.xen.org/wiki/Xen_Serial_Console

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

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