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Date: Wed, 21 May 2014 09:13:16 +0200
From: Markus Hoenicka <markus DOT hoenicka AT mhoenicka DOT de>
To: cygwin AT cygwin DOT com
Subject: Re: emacs oddity
In-Reply-To: <537C04A0.60409@cornell.edu>
References: <537bec06 DOT 6926ec0a DOT 5737 DOT 68db AT mx DOT google DOT com> <537C04A0 DOT 60409 AT cornell DOT edu>
Message-ID: <a890921eb7b35999d15bbfd4589dd5ee@mhoenicka.de>
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At 2014-05-21 03:42, Ken Brown was heard to say:
> On 5/20/2014 7:57 PM, Max Polk wrote:
>> I've been noticing the background timer giving odd messages from 
>> emacs-w32 once in a while such as the following when not touching the 
>> keyboard and the editor is idle.:
>> 
>> seconds-to-time: Arithmetic range error: "round", -0.0e+NaN
>> seconds-to-time: Arithmetic range error: "round", 0.0
>> 
>> The stack dump of a recent emacs crash report on this list seemed to 
>> be in background timer code.  Maybe we found something.
> 
> Have you tried the test release
> (https://cygwin.com/ml/cygwin/2014-05/msg00047.html)?
> 

Hi,

I haven't followed this thread in all its gory details, but I recall 
that only emacs-w32 was reported to have problems. I have noticed random 
crashes and weird messages without prior user actions in emacs-x11 since 
I moved from WinXP + Cygwin x86 to Win7 + Cygwin x86_64 a few weeks ago. 
None of these problems ever occurred on either FreeBSD (amd64, Emacs 24) 
or Debian (amd64, Emacs 23). I just thought I'd mention this because the 
problem does not seem to be limited to the -w32 build of Emacs. I've 
preserved the odd messages on three separate occasions:

Args out of range: [t 21335 39727 373923 0.5 blink-cursor-timer-function 
nil nil 100000], 4

Invalid function: #[(timer) "^H >^H
> ^[\211^203^Q^@Å^H	    \"^Q^K\203^Z^@Å^H
\"^R^L\206^_^@^K*\207" [timer timer-list timer-idle-list cell2 cell1 
delq] 4 2245674]

timer-relative-time: Wrong type argument: vectorp, [t1 time high low 
micro pico nil 3 0 2 ...]

All of them indicate timer related problems as Max pointed out. I do not 
have meaningful backtraces of the crashes at this time because the 
installed emacs-x11 seems to lack debug symbols.

I'll grab the -x11 build of Ken's test release and see if these odd 
messages and crashes still occur.

regards,
Markus

-- 
Markus Hoenicka
http://www.mhoenicka.de
AQ score 38


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