Messages in this thread | | | Date | Wed, 21 May 2008 13:50:02 -0700 | From | Randy Dunlap <> | Subject | Re: fork: Resource temporarily unavailable / cant start new threads |
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mark wrote: > On Wed, May 21, 2008 at 1:28 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote: >> On Tue, 20 May 2008 11:26:47 -0700 mark wrote: >>> I upgraded to 2.6.25.3-18.fc9.x86_64 fedora core 9, now I get this >>> error when I try to login to the box, kill a pr start a python app, or >>> do anything on a regular basis. >>> >>> fork: Resource temporarily unavailable >>> >>> I have over 10GB RAM free, and zero swap spaced used. The box is a >>> dual quad core Intel Xeon 5405 with 16GB RAM. >>> >>> There is no error message in /var/log/messages or dmesg ... >>> how do I identify the problem? >>> thanks! >>> >>> uname -a >>> Linux XXX 2.6.25.3-18.fc9.x86_64 #1 SMP Tue May 13 04:54:47 EDT 2008 >>> x86_64 x86_64 x86_64 GNU/Linux >>> >>> >>> free -m >>> total used free shared buffers cached >>> Mem: 16086 3189 12896 0 42 666 >>> -/+ buffers/cache: 2481 13605 >>> Swap: 1983 0 1983 >>> >>> >>> have only 505 processes running >>> ps aux | wc -l >>> 505 >>> >>> >>> uptime >>> 11:24:15 up 39 min, 1 user, load average: 3.54, 3.47, 2.87 >>> >>> ulimit -a >>> core file size (blocks, -c) 0 >>> data seg size (kbytes, -d) unlimited >>> scheduling priority (-e) 0 >>> file size (blocks, -f) unlimited >>> pending signals (-i) 137216 >>> max locked memory (kbytes, -l) 32 >>> max memory size (kbytes, -m) unlimited >>> open files (-n) 32768 >>> pipe size (512 bytes, -p) 8 >>> POSIX message queues (bytes, -q) 819200 >>> real-time priority (-r) 0 >>> stack size (kbytes, -s) 10240 >>> cpu time (seconds, -t) unlimited >>> max user processes (-u) 1024 >>> virtual memory (kbytes, -v) unlimited >>> file locks (-x) unlimited >> The only place that fork() returns EAGAIN is for number of >> processes being >= its limit. Does this user already have >= 1024 >> processes? > > No, it is around 400
Well, my comment was wrong anyway. There are several other tests just below number of user processes that also return EAGAIN, like:
- total number of threads being too large - error on grabbing a module reference count (?) - error on grabbing a binfmt module reference
> ps ax | wc -l > 417 > > I also I increased max process to unlimited, and I still get the error > randomly.. > > ulimit -u > unlimited > > my webserver is now throwing this error: > > setuid(500) failed (11: Resource temporarily unavailable)
That's all of the useful information??
> > cat /etc/passwd | grep mark > mark:x:500:500::/home/mark:/bin/bash > > I also increased this, but still the same error > kernel.pid_max = 65536
-- ~Randy
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