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Re: Hard crash [message #89900 is a reply to message #89899]

Fri, 19 December 2014 20:52

Jim Pendleton
Messages: 165
Registered: November 2011

Senior Member

On Friday, December 19, 2014 2:34:17 PM UTC-7, Matt Haffner wrote:
> Chris,
>
> There seems to be something "magic" about a variable name "test" and implied print. Perhaps related:
>
> IDL> !version
> {
> "ARCH": "x86_64",
> "OS": "darwin",
> "OS_FAMILY": "unix",
> "OS_NAME": "MacOSX",
> "RELEASE": "8.4",
> "BUILD_DATE": "Sep272014",
> "MEMORY_BITS": 64,
> "FILE_OFFSET_BITS": 64
> }
> IDL> test = 1
> IDL> test
>
> Crashes IDL.
>
> - mh
>
> On Thursday, December 18, 2014 10:08:24 AM UTC-6, Chris Torrence wrote:
>> On Thursday, December 18, 2014 8:20:49 AM UTC-7, Helder wrote:
>>> Ok, I've done it again. After the dictionary() bug here is a new one.
>>>
>>> *disclaimer: don't do this at home. Your pc might go in flames and your cat might bite your nose. I take no responsibility for any losses, damages or whatsoever.
>>>
>>>
>>> Create a new file, name it "testObj.pro"
>>> Put the following code in it:
>>>
>>> pro testObj::crash, res
>>> ;This is bad:
>>> print, res.test[self.refPos]
>>> end
>>>
>>> function testObj::init
>>> self.refPos = 0l
>>> return,1
>>> end
>>>
>>> pro testObj__Define, class
>>> class = {testObj, refPos:0}
>>> end
>>>
>>> pro testObj
>>> o = obj_new('testObj')
>>> o.crash, -1l
>>> end
>>>
>>> Save the file and run it.
>>> IDL window , in my case, closes. No warnings. Nothing. Bang.
>>>
>>> I ran a few tests. The following options in the method crash, will not make it crash:
>>>
>>> print, res.test[0]
>>>
>>> void = self.refPos
>>> print, res.test[void]
>>>
>>> IDL> !version
>>> {
>>> "ARCH": "x86_64",
>>> "OS": "Win32",
>>> "OS_FAMILY": "Windows",
>>> "OS_NAME": "MicrosoftWindows",
>>> "RELEASE": "8.4",
>>> "BUILD_DATE": "Sep272014",
>>> "MEMORY_BITS": 64,
>>> "FILE_OFFSET_BITS": 64
>>> }
>>>
>>> Any explanations? Also on previous builds (<8.4)?
>>>
>>> Cheers,
>>> Helder
>>
>> Here's an even simpler reproduce:
>>
>> IDL Version 8.4, Mac OS X (darwin x86_64 m64)
>> IDL> foo = {bar:0}
>> IDL> (-1).test[foo.bar]
>> Segmentation fault: 11
>>
>> I'm at home today, but I'll log a bug when I get back to work, and try to fix it for the next service pack.
>>
>> Thanks for catching it!
>>
>> -Chris
>> Exelis

Matt,

Is there any chance you have a DLM in your path that includes a routine named "test", one that perhaps needs to be recompiled for IDL 8.4? I can't repeat this behavior on Win7-64 and IDL 8.4.

IDL> where(strcmp(routine_info(/system), 'TEST'))

Jim P.

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[Message index]

		Hard crash By: Helder Marchetto on Thu, 18 December 2014 07:20
		Re: Hard crash By: chris_torrence@NOSPAM on Thu, 18 December 2014 08:08
		Re: Hard crash By: Matt Haffner on Fri, 19 December 2014 13:34
		Re: Hard crash By: Jim Pendleton on Fri, 19 December 2014 20:52
		Re: Hard crash By: chris_torrence@NOSPAM on Sat, 20 December 2014 14:34
		Re: Hard crash By: Matt Haffner on Thu, 08 January 2015 13:45
		Re: Hard crash By: chris_torrence@NOSPAM on Thu, 08 January 2015 14:34
		Re: Hard crash By: Jim Pendleton on Thu, 08 January 2015 18:17
		Re: Hard crash By: Matt Haffner on Fri, 09 January 2015 11:31
		Re: Hard crash By: Jim Pendleton on Fri, 09 January 2015 17:13
		Re: Hard crash By: David Fanning on Fri, 30 January 2015 09:25
		Re: Hard crash By: Heinz Stege on Fri, 30 January 2015 13:15
		Re: Hard crash By: Lajos Foldy on Fri, 30 January 2015 13:25
		Re: Hard crash By: Heinz Stege on Fri, 30 January 2015 15:39
		Re: Hard crash By: Jim Pendleton on Fri, 30 January 2015 17:24
		Re: Hard crash By: markb77 on Mon, 02 February 2015 07:09
		Re: Hard crash By: Heinz Stege on Mon, 02 February 2015 13:40
		Re: Hard crash By: Dick Jackson on Mon, 09 February 2015 18:18
		Re: Hard crash By: Jim Pendleton on Mon, 09 February 2015 19:16
		Re: Hard crash By: Lajos Foldy on Fri, 30 January 2015 10:36

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