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SubjectRe: fork: Resource temporarily unavailable / cant start new threads
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

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)


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


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