Hi all,

the attached patch limits the number of concurrent hotplug processes.
Main idea behind it is that currently each call to call_usermodehelper 
will result in an execve() of "/sbin/hotplug", without any check whether 
enough resources are available for successful execution. This leads to 
hotplug being stuck and in worst cases to machines being unable to boot.

This check cannot be implemented in userspace as the resources are 
already taken by the time any resource check can be done; for the same 
reason any 'slim' programs as /sbin/hotplug will only delay the problem.

Any comments/suggestions welcome; otherwise please apply.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke			hare@suse.de
SuSE Linux AG				S390 & zSeries
Maxfeldstraße 5				+49 911 74053 688
90409 Nürnberg				http://www.suse.de