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Zombie Processes

Grateful for information, pointers to other threads/tech notes, instruction.


Several applications continue running after having quit them. The two main culprits: Safari (6.0.2) and TextEdit (1.8 (301)). In addition, Safari has begun hanging on exit.


Ideas about what's going on and how to stop it are appreciated.


Thanks in advance-

iMac, OS X Mountain Lion (10.8.2), Photoshop CS6

Posted on Dec 7, 2012 5:14 AM

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8 replies

Dec 7, 2012 10:24 AM in response to sig

@Sig, thanks. You can tell if they're still running by consulting the process table. Re running the repair disk utility: I'm uncertain that this will be a help. Doesn't seem to be a disk problem. More likely a parent or child process is waiting on the rogue program. (My guess from similar experiences one sees in other UNIX-based systems.)

Dec 8, 2012 1:33 PM in response to sig

@Sig, you can see running processes by opening up your activity monitor. But activity monitor won't give you a sense of the parent/child relationship among processes. To see these, open up terminal and type "ps -ef." You can pipe this command to the "more" filter, which will page it on the screen. But if you want a quick and easy way to locate a process, just grep the application or utilities name:


>ps -ef|grep TextEdit


this will return a line that includes essential process info and give a clue if the process is running under a parent or is rougue.*


If you're unfamiliar with UNIX shell commands, I suggest you read up before typing up stuff in terminal. If you're a UNIX maven, apologies.


*Actually, this will return two lines (at least) that contain "TextEdit." One will be the running process, the other will be the process in which executes the grep.

Zombie Processes

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