I rebuilt with 2.6.31.2, started from defconfig, added in a few of
things I wanted, and no crash yet.
Things maybe looking hopeful now!
Thanks for the defconfig suggestion.
I will add in a few more config things over the next few days but
fingers crossed I will be fine.

Thanks
Gordon.

> I will let you know how I get on.
> Gordon.
> On 24 June 2011 18:33, richard -rw- weinberger
> <richard.weinber...@gmail.com> wrote:
>> On Fri, Jun 24, 2011 at 11:30 AM, Gordon Russell <drgruss...@gmail.com> 
>> wrote:
>>> Hi All.
>>> I have been using user mode linux since 2004, but I have decided to
>>> update my images to fedora 15.
>>> However I cannot get a stable uml kernel to run this image.
>>>
>>> For instance 2.6.39.1 crashes when I try "yum update". The errors on
>>> the console are shown at the end of this email.
>>> I get the same crash at the same place with 2.6.38.8. Its completely
>>> repeatable. I tried the guest with and without swap (512mb ram).
>>> I tried 2.6.35.4 (patched for gcc 4.6), which does not crash but
>>> suffers from repeated "stalled cpu" problems, solved each time by
>>> hitting a key on one of the consoles. The stalls are so bad that I
>>> cannot shutdown the image...
>>
>> Commit 482db6 (um: fix global timer issue when using CONFIG_NO_HZ)
>> fixes the "stalled cpu" problems.
>> Can you please try bisecting the "yum update" issue?
>> Are you using a public fc15 image which I can test?
>>
>>> I am compiling on a 32 bit Fedora 15 PC, so gcc is 4.6.0. (I am
>>> assuming uml still must be 32 bit)
>>> I am running the uml image on a 64 bit Fedora 14 machine.
>>>
>>> The only unusual things in my compile that I need is static linking,
>>> no modules, and SELinux is on.
>>> 2.6.35.4 is very stable on my old image, but this does not use SELinux
>>> (its fedora 2 but this is getting very old).
>>
>> Does it work with defaultconfig?
>>
>> --
>> Thanks,
>> //richard
>>
>

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