On Fri, Aug 26, 2011 at 4:39 PM, Marek Otahal <markotahal@xxxxxxxxx> wrote: > Hi guys, > > in last days i'm severely bugged by some resource limits on my machine..my applications fail to run > etc. > > I'm running on a netbook that is slow by default, but i've been on it for a few years and it was ok. > I'm running normal KDE, IM client, kmail, firefox (with a lot, cca 30) tabs open, a konsole and > netbeans ide. > > The thing is I remember I once played with some limits to avoid forkbombs etc..so my question is if > you could point me to some files to check for configs? > > This is my top output: > $ top > top - 22:19:59 up 1 day, 7:19, 3 users, load average: 1.06, 1.56, 1.34 > Tasks: 199 total, 1 running, 196 sleeping, 0 stopped, 2 zombie > Cpu(s): 1.8%us, 2.5%sy, 0.0%ni, 95.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st > Mem: 2055224k total, 1748036k used, 307188k free, 13632k buffers > Swap: 2561304k total, 938420k used, 1622884k free, 1119728k cached > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 20689 marek 20 0 223m 60m 17m S 4 3.0 2:08.92 skype > 1322 root 20 0 113m 21m 4552 S 1 1.1 65:50.10 X > 3385 marek 20 0 6124 840 604 S 1 0.0 15:13.67 scdaemon > 6421 marek 20 0 936m 137m 16m S 1 6.9 0:59.12 java > 6832 marek 20 0 2576 1032 756 R 1 0.1 0:01.37 top > 3216 marek 20 0 115m 12m 7156 S 1 0.6 31:17.96 konsole > 22696 marek 20 0 177m 8828 5240 S 1 0.4 6:52.92 kget > 2707 marek 20 0 5576 344 212 S 0 0.0 2:52.82 gpg-agent > 3275 marek 20 0 119m 5124 3136 S 0 0.2 2:36.09 kleopatra > 3449 marek 20 0 101m 4280 2720 S 0 0.2 0:57.63 klipper > 6451 root 20 0 0 0 0 S 0 0.0 0:23.52 kworker/0:2 > 1 root 20 0 1880 24 0 S 0 0.0 0:19.49 init > 2 root 20 0 0 0 0 S 0 0.0 0:00.06 kthreadd > 3 root 20 0 0 0 0 S 0 0.0 0:03.84 ksoftirqd/0 > 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 > 13 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset > 14 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper > 15 root 0 -20 0 0 0 S 0 0.0 0:00.00 netns > 16 root 20 0 0 0 0 S 0 0.0 0:00.25 sync_supers > 17 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default > 18 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd > 20 root 20 0 0 0 0 S 0 0.0 0:00.14 khungtaskd > > Ulimit says > $ ulimit -a > core file size (blocks, -c) 0 > data seg size (kbytes, -d) unlimited > scheduling priority (-e) 30 > file size (blocks, -f) unlimited > pending signals (-i) 16028 > max locked memory (kbytes, -l) 80000 > max memory size (kbytes, -m) unlimited > open files (-n) 1024 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > real-time priority (-r) 75 > stack size (kbytes, -s) 8192 > cpu time (seconds, -t) unlimited > max user processes (-u) 250 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited > > > and I use pm-utils, should that matter? > > I used to run the system under similar load and it was ok, now eg. my compiles in netbeans fail, > says OutOfMemoryException or sometimes cannot create a new native thread. (openjdk), also > command line tools fail with things like > $ man scdaemon > man: fork failed: Resource temporarily unavailable > I wonder is it the memory consumed by netbeans or some number of process/open files limit or > something? > > I'm glad for any suggestions, as now if i want to develop in java, i have to shut down browser, chat > and even though... > > Thank you, Mark > > PS: i know..but now i'd not like to hear suggestions like using a lighter DE or buying better hw ;) > > -- > > Marek Otahal :o) Hello, Since you mention messing around with forkbomb prevention, I'm thinking something was changed when you were doing that. The failed fork error from man also hints at that. Try running the following commands and then check if those errors still persist. They are arbitrarily large limits that you shouldn't hit. ulimit -u 8000 sysctl -w kernel.threads-max=50000 If that doesn't work you could check the following files for some potential problem configurations: /etc/security/limits.conf /etc/sysctl.conf Good luck, Jason (canyonknight)
