Hello everybody, on one of our boxes, I'm encountering strange problem from time to time.. in.tftpd processes are forking up to thousand of processes, getting server to almost unresponsive state.
I've tried various approaches to limiting tftp daemon but to no avail.. what puzzles me most is, that it seems to breach even ulimit -u setting. I'm starting in.tftpd from initscript (so no xinetd), prior to starting it, ulimit -n 50 is run. I can see limit set up correctly for master process: grep processes /proc/XXX/limits: Max processes 50 50 processes but again, few days ago, problem occured again, according to atop records, thousands of in.tftpd processes got forked.. Any idea on what could I be doing wrong? I also tried limiting memory using cgroups, but even with limit of 2MB, it can spawn much more processes than I'd like, and 1MB is too low... Is it possible to limit number of processes using cgroups? but I still think ulimit should be enough, but what am I doing wrong here? thanks a lot for any clues in advance, I'm really becoming desperate... BR nik -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28.rijna 168, 709 00 Ostrava tel.: +420 591 166 214 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: ser...@linuxbox.cz -------------------------------------
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