Re: Crash on SIGILL
Re: Crash on SIGILL
- Subject: Re: Crash on SIGILL
- From: Greg Parker <email@hidden>
- Date: Fri, 21 Nov 2014 14:38:22 -0800
> On Nov 21, 2014, at 9:24 AM, Laurent Daudelin <email@hidden> 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 email@hidden Runtime Wrangler
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