On Fri, 25 Feb 2005, Horst Birthelmer wrote:
That's an old more or less known problem.
The problem is the kernel allocation. The xmalloc call ... you can see that in the backtrace above.
I know that there's a problem but never had either the time to fix it nor any clue how to fix that since it looks pretty correct to me when a pioctl allocates some kernel memory.
I posted a patch a week ago that increases the stack which makes it work a bit better. Does that give any hint on what's wrong? I have recieved no comments at all on the issue...
Michael: You might want to try my patch and see how much things improve for you. Drop me a mail if you haven't recieved it on the list.
Would it help to enable memory overlay detection or some other debug feature found in bosdebug and reproduce the crash? Although I have compiled quite a few programs on AIX I'm rather new both to the OpenAFS codebase and to debugging AIX kernel space stuff, so any hints would be welcome.
Given that the thing works better with larger stack I'd assume that some assumption that's valid on AIX4 isn't valid now which causes the thing to overwrite memory in kernel space and things goes downhill from there.
I'm beginning to get rather keen on getting this issue fixed since the 1.4 release is getting closer...
/Nikke
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Niklas Edmundsson, Admin @ {acc,hpc2n}.umu.se | [EMAIL PROTECTED]
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A waist is a terrible thing to mind.
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