2.6.34-rc2: xen DomU not booting

2.6.34-rc2: xen DomU not booting

[Christian Kujau]

Hi there,

again a bit late in the game, I tried to upgrade one of my DomUs from 
2.6.33 to 2.6.34-git (tried -rc1 yesterday, pulled again today, so I'm on 
-rc2 now):

------
dom0# xm create sid.cfg -c
Using config file "/etc/xen/sid.cfg".
Started domain sid

------

Then it just "hangs" there: it won't return to the shellprompt (as if the 
domU crashed) but it won't connect to the domU console either (as it does 
perfectly with 2.6.33). And indeed, the domU is listed as running:

dom0# (xm list sid ; sleep 3; xm list sid) | grep ^sid
sid        55   256     1     r-----    140.8
sid        55   256     1     r-----    144.3

Also, "xm dmesg" is blank and netconsole doesn't work inside a domU, IIRC. 

Hints how to debug this (besides doing git bisect, again) are very much 
welcome!

Oh, the Dom0 is Ubuntu 8.04 (2.6.24-24, Xen 3.2.0) on a Mac Mini.

Thanks,
Christian.
-- 
BOFH excuse #192:

runaway cat on system.

Re: 2.6.34-rc2: xen DomU not booting

[Ian Campbell]

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On Sat, 2010-03-20 at 01:14 -0700, Christian Kujau wrote: 
> Hi there,
> 
> again a bit late in the game, I tried to upgrade one of my DomUs from 
> 2.6.33 to 2.6.34-git (tried -rc1 yesterday, pulled again today, so I'm on 
> -rc2 now):
> 
> ------
> dom0# xm create sid.cfg -c
> Using config file "/etc/xen/sid.cfg".
> Started domain sid
> 
> ------
> 
> Then it just "hangs" there:

Can you try this patch please, I think it will resolve the issue you
see.

https://patchwork.kernel.org/patch/87081/

> it won't return to the shellprompt (as if the 
> domU crashed) but it won't connect to the domU console either (as it does 
> perfectly with 2.6.33). And indeed, the domU is listed as running:
> 
> dom0# (xm list sid ; sleep 3; xm list sid) | grep ^sid
> sid        55   256     1     r-----    140.8
> sid        55   256     1     r-----    144.3
> 
> Also, "xm dmesg" is blank and netconsole doesn't work inside a domU, IIRC. 
> 
> Hints how to debug this (besides doing git bisect, again) are very much 
> welcome!
> 
> Oh, the Dom0 is Ubuntu 8.04 (2.6.24-24, Xen 3.2.0) on a Mac Mini.
> 
> Thanks,
> Christian.

-- 
Ian Campbell

You!  What PLANET is this!
		-- McCoy, "The City on the Edge of Forever", stardate 3134.0

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Re: 2.6.34-rc2: xen DomU not booting

[Christian Kujau]

On Sat, 20 Mar 2010 at 09:33, Ian Campbell wrote:
> Can you try this patch please, I think it will resolve the issue you
> see.
> https://patchwork.kernel.org/patch/87081/

Wow, thanks for the swift response! And yes, it does indeed resolve the 
issue, the domU is now booting again.

For the record, I've put the .config and dmesg on:
http://nerdbynature.de/bits/2.6.34-rc2/xen/

Thanks again!
Christian.
-- 
BOFH excuse #239:

CPU needs bearings repacked