CODEWITHSUNDEEP
linuxmemoryout-of-memoryvirtual-machinebusybox
user1348067
user1348067

Reputation: 35

Busybox OOM killer

I'm testing and embedded linux CPE with Busybox;

BusyBox v1.00 (2012.07.10-03:48+0000) multi-call binary

I want to try consuming all virtual memory available on the box to test the behavior of the OOM killer.

Here the memory stats:

# free
          total         used         free       shared      buffers
Mem:        27876        21824         6052            0          708
Swap:            0            0            0
Total:        27876        21824         6052
#

The problem is that the tools on the CPE is very limited, so commands like "vi", "dd" dont exist.

I found an article on the web: http://linuxdevcenter.com/pub/a/linux/2006/11/30/linux-out-of-memory.html

But haveing problems executing the scripts, because of the lack of build in tools on the device.

Any ideas how I can consume all available memory on command line?

Upvotes: 1

Views: 1070

Answers (1)

Maja Piechotka
Maja Piechotka

Reputation: 7216

I haven't tested it under busybox but i fork bomb may do the trick (I belive :(){ :|: & };:) should work on any ksh). It will spawn processes recursively so it will consume all of resources at some point (unless you run out of, say, pids faster - but I would think that on embedded devices memory is primary concern).

Upvotes: 1

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