[OpenAFS-devel] 1.3.79 on AIX 5.2, system dump when using token

[Horst Birthelmer]

On Feb 25, 2005, at 3:27 PM, Michael Niksch wrote:

>> 1) klog does not work unless you compiled it without -O (I think 
>> specially the des libraries, but better if you do it for all). This 
>> is obviously a bug of the IBM compiler.
>
> So why is 1.2.10 klog working? Why is klog working on AIX 5 (though 
> the machine is crashing afterwards)? What's the impact of compiling 
> everything without -O?
>
>> 2) afs_pioctl.c had been changed between 1.2 1nd 1.3 at some point to 
>> support the giant tickets created by Microsoft's active directory 
>> (12000 byte). AIX has a problem with this. Therefore I came back to 
>> the old code which limits the ticket size to e reasonable value.
>
> Can you tell a bit more about why AIX is having problems with giant 
> tickets? Shouldn't it be possible to reserve enough space to deal with 
> them by properly defining the sizes of related structures?

It doesn't have problems with giant tickets just with huge kernel 
allocations.
Well, there are big xmallocs in other pieces of code, that's why I 
think we still have a problem, maybe somewhere else. Putting that 
together with Niklas' report of larger stacks and changing stability 
dosn't make me sleep better ;-)

>
>> My version in /afs/ipp-garching.mpg.de/openmrafs/openafs is based 
>> mostly on 1.3.77 and works correctly on AIX 5.2. Feel free to copy.
>
> Thanks, I'll give it a try when I return from vacation in a week. 
> However, I suppose your version has lots of other modifications with 
> respect to 1.3.77. Since there are apparently more people looking for 
> a working AIX 5 version, is there a chance to isolate those patches 
> that apply to all of us, and port them back into the official 1.3.xx 
> tree?
>

If Hartmut does, that's OK. I don't have any time for debugging this in 
the next few weeks. I'm doing all that in my decreasing spare time... 
:-)

Horst