can't allocate region malloc

Question

I am getting this error causing my app to crash:

..Splash-it(1369,0x5783000) malloc: *** mmap(size=516096) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug

I have no idea why the error is caused. Is it a memory problem error? How can I prevent it? What do they mean by "set a breakpoint in malloc_error_break to debug"?

Thanks for any answers.

How much memory your application uses? On which device? Did you receive memory warning before this? — Nickolay Olshevsky, Dec 23 '12 at 19:45
Take a look at http://stackoverflow.com/questions/8477236/malloc-error-cant-allocate-region-failed-with-error-code-12-any-idea-how-to for some ideas. — DrC, Dec 23 '12 at 19:50

score 1 · Answer 1 · edited Jun 15 '13 at 11:39

1

In my case i was getting this because imgCount is not getting value as my condition fails. And the non void function is returning the value of imgCount.

- (NSInteger)collectionView:(PSUICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    NSInteger imgCount;
    if(collectionView == self.imageCollection) {
        imgCount=self.imageCount;
    }
    return imgCount;
}

So i resolved it by assigning the value to imgcount. It works for me.

edited Jun 15 '13 at 11:39

sunkehappy

8,970
5
44
65

answered Apr 05 '13 at 13:39

Arun

483
6
20

This answer helped me by realizing i was just referencing a array for the count instead of array.count , thank you!!! – ChuckKelly May 01 '16 at 08:52

nobody · Answer 2 · 2020-04-23T10:50:01.617

1

Chances are that you are trying to allocate too much memory at once. I tried to malloc crazy big amounts of memory, and I got this error.

edited Apr 23 '20 at 10:50

answered Apr 23 '20 at 10:34

nobody

1,144
1
10
20

score 0 · Answer 3 · answered Mar 20 '13 at 09:59

0

Not sure but this is waht happened in my case & I resolved by removing breakpoint.

I was loading data from server & adding them to tableview & hiding or showing footer. At times my footer view was not appearing as I wanted so I inserted the breakpoints to check out whats going wrong. But then after some time doing the same activity my app got above error.

I tried this 2-3 times without breakpoint & it did not crash but, whenever I added breakpoint the error occured.

This may not be in your case but I guess if you are doing some large operations on main thread & if you have inserted breakpoints, you can atleast try this once.

answered Mar 20 '13 at 09:59

JiteshW

2,195
4
32
61

By removing thebreakpoints you mean removing all by the-selecting the breackpoint button on the top bar? Is it ok if I leave them in the code itself? – Alessandro Mar 20 '13 at 16:08
I mean try to run your code by disabling breakpoint from you Xcode toolbar. See if it works. – JiteshW Mar 21 '13 at 05:37
I had them disabled even before, sorry – Alessandro Mar 21 '13 at 13:52

can't allocate region malloc

3 Answers3