On 07/10/2017 01:12 PM, Jiří Zárevúcky wrote:
> On 10 July 2017 at 02:00, Jiri Svoboda <jirik.svob...@seznam.cz> wrote:
>> Hi,
>>
>> thanks for catching that. I really didn't want to push this change, it was
>> part of my debugging. The problem is that when CDFS crashes at this point,
>> VFS hangs, so taskdump won't be run. The kernel will print register
>> contents, but you don't know the address space map so you can't determine,
>> whether the address being accessed is valid or not.
>>
> 
> It would be helpful if there was a basic taskdump in the kernel, then.

Well we could either add as_print() to all (memory-related)
faults/panics or go for something reminiscent of dump to memory /
deferred dump:

https://blogs.oracle.com/vlad/deferred-dump-in-solaris

The latter would not help in this situation either.

Jakub

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