On 04Apr2012 16:29, Scott van Looy <sc...@ethosuk.net> wrote: | Hoping this might help someone debug my issue… | | I attached a strace: | strace -f -p 1747 -o trace.txt | | Left it running for around 10 seconds and got 34Mb of log that's all pretty much this: | | 1751 epoll_wait(9, <unfinished ...> | 1750 futex(0x7f8148e22028, FUTEX_WAKE_PRIVATE, 1 <unfinished ...> | 1749 futex(0x7f8148e22028, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...> | 1748 futex(0x7f8148e2108c, FUTEX_WAIT_PRIVATE, 4692676, NULL <unfinished ...> | 1747 rt_sigsuspend([] <unfinished ...> | 1750 <... futex resumed> ) = 0 | 1749 <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable) [...]
Looks like heavy contention for something. Try: strace -e trace=!futex -f -p 1747 -o trace.txt and see what's left over. And get the output of: lsof -p 1747 too so you can match of file descriptor numbers. This may shed a little light on what named is working on at the time. Does it settle down if you leave it alone? Is it easy to reproduce? For you I mean; for example, if it _has_ settled down, can you make it happen again by stopping and restarting named? If so, does HUPping named trigger it also? Cheers, -- Cameron Simpson <c...@zip.com.au> DoD#743 http://www.cskk.ezoshosting.com/cs/ Can't talk. Eating. - Homer Simpson -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
