From devin.johnson at noaa.gov  Fri May  1 19:48:10 2009
From: devin.johnson at noaa.gov (DevinJ)
Date: Fri, 1 May 2009 10:48:10 -0700 (PDT)
Subject: [Rd] crash after using graphics in Rcmdr (PR#13679)
In-Reply-To: <49848470-CCA0-4105-A817-4E365BB378E3@me.com>
References: <20090428172515.2E4E928321A2@mail.pubhealth.ku.dk>
	<003501c9c997$b32cc470$19864d50$@ca>
	<49848470-CCA0-4105-A817-4E365BB378E3@me.com>
Message-ID: <23337174.post@talk.nabble.com>


This happens to me every time I try a plot command from TextWrangler with the
following applescript

tell application "TextWrangler"
	set the_selection to (selection of front window as string)
	if (the_selection) is "" then
		set the_selection to line (get startLine of selection) of front window as
string
	end if
end tell
tell application "R64"
	cmd the_selection
end tell

I don't know if that sheds any light on the situation. I do like
TextWrangler but can't use it because any time I send a plot command over it
plots fine with Quartz, but when I close the window (manually or with
dev.off()) I get the segfault. 


Rob Goedman-3 wrote:
> 
> John,
> 
> To the best of my knowledge this problem in R.app has been around at  
> least since the R-2.8 days, but likely much longer. I never use R from  
> a Terminal, so don't know if it occurs or not outside R.app.
> 
> It's not related to Rcmdr and you're observation is indeed one of the  
> better ways to kind of reproduce the issue. Not sure if it always does  
> though. If you have a 'hard' way of crashing R.app, please let me know  
> the sequence. In cases when no output is written to the console of  
> R.app I tend to make sure I enter an empty line before closing the  
> graphics window.
> 
> This issue and sometimes very long sequences of plots (never have been  
> able to make that reproducible, sometimes the crash happens up to a  
> minute after R finishes a series of plots and I'm working in an  
> external editor like TextMate) are hard to pin down.
> 
> Regards,
> Rob
> 
> Note: Hope you don't mind I've removed the R-bugs & R-devel Cc's.
> 
> On Apr 30, 2009, at 6:29 AM, John Fox wrote:
> 
>> Dear Neil,
>>
>> I had R 2.8.0 installed on my Mac Book, also with OS X 10.5.6, and was
>> unable to duplicate this problem. I then installed R 2.9.0 and  
>> observed the
>> same problem that you did. In both cases, I used the latest version  
>> of the
>> Rcmdr package, 1.4-10.
>>
>> I also observed the following: (1) The problem occurred only if I  
>> closed the
>> Quartz graphics device after the first graph was plotted; if I plotted
>> another graph and then closed the device, the problem did not occur.  
>> (2) The
>> problem did not occur if I ran R from a terminal with an X11  
>> graphics device
>> rather than using R.app.
>>
>> I'm afraid that there's not much more that I can do at this point,  
>> since my
>> familiarity with Macs is minimal. I'm copying this message to Rob  
>> Goedman,
>> who has proven helpful in the past. Of course, if there's something  
>> in the
>> Rcmdr that's causing the problem and I can fix it, I will.
>>
>> Regards,
>> John
>>
>>
>>> -----Original Message-----
>>> From: r-devel-bounces at r-project.org
>>> [mailto:r-devel-bounces at r-project.org 
>>> ]
>> On
>>> Behalf Of nhepburn at ualberta.ca
>>> Sent: April-28-09 1:25 PM
>>> To: r-devel at stat.math.ethz.ch
>>> Cc: R-bugs at r-project.org
>>> Subject: [Rd] crash after using graphics in Rcmdr (PR#13679)
>>>
>>> Full_Name: Neil Hepburn
>>> Version: 2.81 and 2.90
>>> OS: OS-X 10.5.6
>>> Submission from: (NULL) (142.244.28.93)
>>>
>>>
>>> When I create graphs using Rcmdr and then close the quartz display, R
>> blows
>>> up
>>> and tells me of a segmentation fault. It then gives me
>>> *** caught segfault ***
>>> address 0xc0000023, cause 'memory not mapped'
>>>
>>> Possible actions:
>>> 1: abort (with core dump, if enabled)
>>> 2: normal R exit
>>> 3: exit R without saving workspace
>>> 4: exit R saving workspace
>>>>
>>> Selection:
>>>
>>> This only happens if I create the graphics from within Rcmdr. If I  
>>> create
>> the
>>> graphics manually, there is no problem. This occurs on my laptop  
>>> with R
>> 2.8.1
>>> (I
>>> uninstalled 2.9 and reinstall 2.8.1 to see if the problem existed  
>>> there)
>> and
>>> also on my iMac with R2.9.
>>>
>>> ______________________________________________
>>> R-devel at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-devel
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
> 
> 

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[Rd] crash after using graphics in Rcmdr (PR#13679)
DevinJ