On 9/27/2019 10:27 AM, Vanda Vodkamilkevich wrote: > Le ven. 27 sept. 2019 à 16:13, Ken Brown <kbr...@cornell.edu> a écrit : > >> On 9/27/2019 9:37 AM, Norton Allen wrote: >>> On 9/26/2019 10:50 PM, Ken Brown wrote: >>>> >>>>> As a simple test example, consider: >>>>> >>>>> /bin/ssh-agent /bin/sleep 10 >>>>> >>>>> While the sleep is still running, ps shows: >>>>> >>>>> PID PPID PGID WINPID TTY UID STIME >> COMMAND >>>>> 1694 1693 1694 1576 ? 22534 00:01:10 >>>>> /usr/bin/ssh-agent >>>>> 1653 1 1653 11740 cons1 22534 00:00:37 >> /usr/bin/bash >>>>> 1693 1653 1693 1552 cons1 22534 00:01:10 >> /usr/bin/sleep >>>>> >>>>> One oddity is that ssh-agent is listed as a subprocess of sleep >>>> ...but this isn't a bug. ssh-agent forks, and then the parent execs >> the command. >>> >>> With the salient difference presumably being that the exec is done in >> the parent >>> instead of the child as usual? >> >> Yes. The idea is that 'ssh-agent command' should be more-or-less >> equivalent to >> running 'command', with ssh-agent running as a subprocess. >> >> The ssh-agent subprocess periodically checks to see if its parent is still >> alive, and it exits when the parent has died. Someone should figure out >> why >> this is not working on Cygwin. > > Hi, > this may probably be not fully related but I see from time to time a > strange behavior of ssh-agent (running in the background and initially > started by keychain launched in .bashrc) : the agent is running wild (25% > of cpu and never responding). It seems to occur (not systematically) when > network is disconnected and reconnected (this is on a laptop often removed > from the docking system). Do you have any idea how to diagnose the issue > more precisely?
Sorry, but I'm not an expert on ssh-agent. Everything I said above is based on doing an internet search and looking briefly at the ssh-agent source code. My only suggestion would be to attach gdb to the process when it starts running wild and see if you can figure out why it's inf-looping. If you don't know how to do this, someone who does know would have to be able to reproduce the problem. Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
