Thank you, all, I’m going to turn on GuardMalloc, Zombies and the likes.

-Laurent.
-- 
Laurent Daudelin                                                        
laur...@nemesys-soft.com <mailto:laur...@nemesys-soft.com>
AIM/iChat/Skype:LaurentDaudelin                                 
http://www.nemesys-soft.com/ <http://www.nemesys-soft.com/>
Logiciels Nemesys Software

> On Nov 21, 2014, at 19:10, Roland King <r...@rols.org> wrote:
> 
> Two messages in one day with the exact same crash report in them - with the 
> same memory locations in the crash report even. 
> 
> That seems beyond unlikely - is this actually one crash report where the 
> original user happened to post it here as well as reporting it, or there 
> really are two. 
> 
> I recommended GuardMalloc and Zombies for the first instance. 
> 
>> On 22 Nov 2014, at 6:38 am, Greg Parker <gpar...@apple.com 
>> <mailto:gpar...@apple.com>> wrote:
>> 
>>> 
>>> On Nov 21, 2014, at 9:24 AM, Laurent Daudelin <laur...@nemesys-soft.com 
>>> <mailto:laur...@nemesys-soft.com>> wrote:
>>> 
>>> Just got a crash report from a user. There is nothing in the trace that
>>> relates to my app. The application specific information shows:
>>> 
>>> Application Specific Information:
>>> objc[60867]: Method cache corrupted. This may be a message to an invalid
>>> object, or a memory error somewhere else.
>>> objc[60867]: receiver 0x7ffe16d5b380, SEL 0x7fff8899a0b0, isa
>>> 0x7fff785f7590, cache 0x7fff785f75a0, buckets 0x7fff9199b465, mask 0x17,
>>> occupied 0x0
>>> objc[60867]: receiver 32 bytes, buckets 0 bytes
>>> objc[60867]: selector 'retain'
>>> objc[60867]: isa ''
>>> objc[60867]: Method cache corrupted.
>>> 
>>> I've never seen this. Anybody has any clue what could cause a method cache
>>> corrupted? I haven't got any report from anyone else but that user.
>>> 
>>> Any info, pointer or help appreciated!
>> 
>> Like the log says: either a message to an invalid object, or a memory error 
>> somewhere else that trampled on your valid object or its class's data 
>> structures. You should debug it as if it were a crash in objc_msgSend().
>> 
>> 
>> -- 
>> Greg Parker     gpar...@apple.com <mailto:gpar...@apple.com>     Runtime 
>> Wrangler
>> 
>> 
>> 
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