[OpenAFS] Problem with afs_syscall

[Jeffrey Hutzelman]

On Tuesday, August 31, 2004 14:40:59 -0400 "John S. Bucy" 
<bucy-openafs-info@gloop.org> wrote:

> On Thu, Aug 26, 2004 at 09:41:39AM +0200, Christian Pfaffel wrote:
>> Hello everyone!
>>
>> I have got the following problem on a couple of more or less heavily
>> loaded application servers all running OpenAFS version 1.2.11 on
>> debian x86 woody.
>
> Are you creating lots of PAGs?  In the present (magic groups)
> implementation, you can run out of PAGs so there's some throttling on
> k_setpag() which will just block the calling process.
>
> Derrick: could we get a kernel message when this occurs?  Its not
> documented anywhere AFAIK and quite mysterious to troubleshoot if you
> don't already know about it.

You want the kernel to log a message whenever someone _fails_ to set a PAG 
because they're not root and are trying to do so more than once per second?

Send a patch, but make sure the message logging is also throttled...