Unpause application in Mac OS X

Question

I tried parsing a gigantic XML file and I ended up running out of virtual memory. The OS put all my applications on pause and gave me a screen to shutdown applications to free more space. I killed the XML parsing application and now have tons of space but I can't resume my paused applications anymore. What should I do?

Solution 1

Find your paused app's process ID (using either Activity Monitor or ps -ax | grep ), then issue it the CONT signal using "kill" in the terminal (don't worry, "kill" is misnamed, it just sends a signal to an app - it's called kill because the default signal is QUIT)

% ps -ax | grep Safari
  461 ??        61:22.30 /Applications/Safari.app/Contents/MacOS/Safari -psn_0_180268
% kill -CONT 461
% 

Solution 2

To un-pause all applications, run this command in Terminal:

pkill -CONT -u $UID

or (as suggested here):

kill -CONT -1

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To un-pause the specific app (such as Chrome), try:

kill -CONT $(pgrep Chrome)

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Consider adding the following alias into your rc files (such as ~/.bashrc):

alias unpause="pkill -CONT -u $UID"

So next time you may just run: unpause.

Comments

[cregox]

much related: apple.stackexchange.com/questions/226201/…

[asmeurer]

Is there an easy way to find out which processes have been paused?

[Jawa]

Any advice on a situation where Terminal is in paused state?

[keflavich]

@Jawa - open iterm if you have it, or X11, to get at the terminal some other way. Alternatively, ssh in from another machine. But these are workarounds, I'd love a better solution

[cregox]

or just use kill -CONT -1 as explained here: superuser.com/questions/1076932/…