CODEWITHSUNDEEP
linuxbashout-of-memoryheap-memoryulimit
Scissor
Scissor

Reputation: 153

ulimit for virtual memory size of a process

I'm running Linux OS (Ubuntu) on virtual box. When I am running the command 

ulimit -Sv 50

It's not setting the soft limit for virtual memory size in that bash session. The error I'm getting is: 

fatal error: out of heap memory

I was running above command with sudo access. The output of ulimit -a is as follow:

-t: cpu time (seconds)              unlimited
-f: file size (blocks)              unlimited
-d: data seg size (kbytes)          unlimited
-s: stack size (kbytes)             8192
-c: core file size (blocks)         0
-m: resident set size (kbytes)      unlimited
-u: processes                       515266
-n: file descriptors                1024
-l: locked-in-memory size (kbytes)  64
-v: address space (kbytes)          unlimited
-x: file locks                      unlimited
-i: pending signals                 515266
-q: bytes in POSIX msg queues       819200
-e: max nice                        0
-r: max rt priority                 0
-N 15:                              unlimited

I ran a binary with AFL using memory size (-m) = 50 MB. So, I need to run this binary (without AFL) with the same memory size. Any insights will be helpful.

Upvotes: 0

Views: 4567

Answers (1)

Anatoly Trosinenko
Anatoly Trosinenko

Reputation: 754

Looks like you are setting limit to 50 kilobytes and not 50 megabytes (see units in help ulimit).

Upvotes: 2

Related Questions