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Message-ID:	<51FD5462.5020400@cs.utoronto.ca>
Date:	Sat, 03 Aug 2013 15:05:06 -0400
From:	Ryan Johnson <ryan DOT johnson AT cs DOT utoronto DOT ca>
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To:	cygwin AT cygwin DOT com
Subject:	Re: 64-bit emacs crashes a lot
References:	<51F3151D DOT 7040000 AT cs DOT utoronto DOT ca> <51F33565 DOT 1090406 AT cornell DOT edu> <51F33F52 DOT 4060405 AT cs DOT utoronto DOT ca> <51FB1D9E DOT 5090102 AT cs DOT utoronto DOT ca> <20130802080211 DOT GA18054 AT calimero DOT vinschen DOT de> <51FB9228 DOT 2020309 AT cornell DOT edu> <51FBA100 DOT 90005 AT cs DOT utoronto DOT ca>
In-Reply-To:	<51FBA100.90005@cs.utoronto.ca>

On 02/08/2013 8:07 AM, Ryan Johnson wrote:
> On 02/08/2013 7:04 AM, Ken Brown wrote:
>> On 8/2/2013 4:02 AM, Corinna Vinschen wrote:
>>> On Aug  1 22:46, Ryan Johnson wrote:
>>>> Here's a new one... I started a compilation, but before it actually
>>>> invoked the command it started pegging the CPU. After ^G^G^G, it
>>>> crashed with the following:
>>>>> Auto-save? (y or n) y
>>>>>       0 [main] emacs 5076 C:\cygwin64\bin\emacs-nox.exe: *** fatal
>>>>> error - Internal error: TP_NUM_W_BUFS too small 2268032 >= 10.
>>>
>>> That looks like a memory overwrite.  2268032 is 0x229b80, which looks
>>> suspiciously like a stack address.  And the overwritten value is on the
>>> stack, too, well within the cygwin TLS area.  If *this* value gets
>>> overwritten, the TLS is probbaly totally hosed at this point. There's
>>> just no way to infer the culprit from this limited info.
>>
>> Could this be BLODA?  Ryan, I noticed that you wrote in a different 
>> thread, "I recently migrated to 64-bit cygwin...and so far have not 
>> had to disable Windows Defender; the latter was a recurring source of 
>> trouble for my previous 32-bit cygwin install on Win7/64."
> This would be a whole new level of nasty from a BLODA... I thought 
> they only interfered with fork()?
>
> However, this *is* Windows Defender we're talking about... service 
> disabled and all cygwin processes restarted. I'll let you know in a 
> day or so if the crashes go away.
Rats. I just had another crash, the "Fatal error 6" variety. Windows 
Defender has not turned itself back on (it's been known to do that), and 
a scan of the BLODA list didn't match anything else on my system.

So I don't think it's BLODA...

Ideas?
> Ryan


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