Re: malloc errors / fragmentation?
Re: malloc errors / fragmentation?
- Subject: Re: malloc errors / fragmentation?
- From: "Shawn Erickson" <email@hidden>
- Date: Fri, 31 Oct 2008 11:07:35 -0700
On Fri, Oct 31, 2008 at 8:23 AM, Jay Levitt <email@hidden> wrote:
> Eric Gouriou wrote:
>>
>> On Oct 30, 2008, at 3:41 PM, Jay Levitt wrote:
>>>
>>> I'm seeing the same thing on my 16GB Mac Pro (early 2008, OS X 10.5.5).
>>> I'm getting crashes every few days in WindowServer or coreservicesd;
>>> MenuMeters and Activity Monitor say I've got plenty of available RAM (either
>>> unused or idle). system.log says:
>>>
>>> system.log.0.bz2:Oct 29 14:35:19 macpro com.apple.coreservicesd[89]:
>>> coreservicesd(89,0xa0220fa0) malloc: *** mmap(size=16777216) failed (error
>>> code=12)
>>
>> I suggest keeping top or Activity Monitor around and, when you see a
>> large
>> growth in RPRVT or when VSIZE gets around ~3GB, capture heap / vmmap /
>> leaks
>
> Thanks - that helps a lot.
>
> Is there a way for me to keep an eye on the "largest contiguous block on the
> free list", or something like that? I haven't done any dev on Darwin, so I
> don't know much about debugging it.
vmmap lists the virtual memory ranges that have been mapped you could
do a little math to figure out what is available.
-Shawn
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