Re: fork: Resource temporarily unavailable
On Mon, Mar 04, 2002 at 12:08:54PM -0800, Angus D Madden wrote:
> Karsten M. Self, Mon, Mar 04, 2002 at 11:28:18AM -0800:
> > For a fork, I'd suspect you're out of user processes, though checking
> > other resource limits (generally memory and filehandles) is
> > There are hard-compiled limits of 256 user, and 512 system, processes,
> > in the 2.2.x kernels. These limits are raised in the 2.4 kernels,
> > I don't know the values offhand.
> IIRC, the 2.4 limits can be configured at runtime. I think it's in
Yes, I think I just posted about this last week.
In the 2.4 kernels, the "hard" limit is "unlimited", the soft limit
(for threads) is 256.
You can change the defaults with a fair degree of granularity in
> > The value can be raised, but you have to edit sources to do so at
> > through 2.2.x -- there is _no_ configuration option for this value.
> NR_TASKS in include/linux/tasks.h
> > I ran into similar issues with exim, procmail, and spam-filtering
> > software a few weeks ago. I tuned my mail configuration to keep from
> > launching a large number of exim processes and the problem went away.
> > Multi-threaded applications are particularly prone to this issue.
> I use ulimit to do this in init.d startup scripts. Works pretty good.
> Brought to you by Debian 3.0
> Linux took 2.4.16 #1 SMP Sat Jan 5 12:52:24 EST 2002 i686 unknown
Share and Enjoy.