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3
votes
3answers
3k views

Monitor all newly spawned processes on a Linux machine

Sometimes a process comes and goes faster than I can ps aux, I tried watch -d -n0.1 "ps aux | tail" but again, that's restricted to 1/10th of a second. What I really want is to run a command and ...
0
votes
1answer
2k views

How to get PIDs waiting on a semaphore

If I strace a stuck process and see output of the form: [gaius@redhat64 bin]$ strace -p 18185 Process 18185 attached - interrupt to quit [ Process PID=18185 runs in 32 bit mode. ] semop(458760, ...
1
vote
1answer
722 views

Question About No Output From strace

I am using strace to see what certain processes are doing. I have an Apache process that seems to be running forever, taking up 97.8% of a core and almost 2GB of RAM. Now when I run strace on this ...
2
votes
1answer
3k views

Cannot Login as any user other than Root - permission denied

Help! I'm desperate :) I can't login as any user other than root. I'm on Ubuntu 10.04. Here's command output: root@pinky:~# adduser test Adding user `test' ... Adding new group `test' (1003) ... ...
6
votes
3answers
2k views

Monitor system CPU / system calls in Linux

I have a couple processes that are eating up a lot of system CPU time (as determined by looking at vmstat). Is there an easy way to find out what kind of system calls are being made? I know there ...
1
vote
1answer
112 views

Performance problem when launching GUI applications under gnome while connected to VPN

I'm experiencing a severe performance problem starting apps but only when connected to my office VPN. It appears to be related to gnome-session. I believe the following is the relevant strace from ...
1
vote
2answers
1k views

ls -l freezes terminal locally and remotely

I've been reading other SF threads regarding ls not returning results or freezing and stalling terminal sessions and it appears they usually the fault of network problems. My problem however, occurs ...
4
votes
1answer
542 views

debugging irssi using 100% cpu

I have a debian VM I'm running on an ESX4.0 server. This VM hosts a number of users, each running an irssi session inside a screen instance. This is working quite well, except for one user. For ...