repeatable kernel freeze

[Sam Varshavchik]

Joe Conway writes:

> On 06/16/2010 05:39 PM, Sam Varshavchik wrote:
>> 2) Using kexec-tools to set up a recovery kernel. Adding the crashkernel
>> parameter to your kernel boot prompt, reserving 128MB of your RAM for a
>> recovery kernel and a small boot image. When your running kernel
>> crashes, the recovery kernel, installed by kexec-tools, is going to
>> generate a kernel dump, which can then be grokked by crash to generate a
>> dump.
>> 
>> In either case, you have a fair bit of RTFMing to do.
>> 
>> And then after wasting all the time, you'll discover that you're not
>> getting a useful crash in the first place.
> 
> Hmmm, you paint a rosy picture ;-)

It's definitely:

1) A learning curve

2) Doable.

> But if I do nothing, my choices are:
> 1) hope to get lucky on some future kernel update

There is precedent for that. Circa Fedora 9, or so, there were something 
like three or four kernel updates in a row before the kernel managed to boot 
succesfully on one of my machine.


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