Reproduced it here with the same sort of backtraces. Here's the
beginning of a couple of crash reports.
dan
Process: Quartz Composer [5176]
Path: /Developer/Applications/Quartz Composer.app/Contents/
MacOS/Quartz Composer
Identifier: com.apple.QuartzComposer.editor
Version: 3.1 (63.2)
Build Info: QuartzComposerEditor-630200~2
Code Type: X86 (Native)
Parent Process: launchd [230]
Interval Since Last Report: 301802 sec
Crashes Since Last Report: 4
Per-App Interval Since Last Report: 24950 sec
Per-App Crashes Since Last Report: 1
Date/Time: 2009-05-28 16:04:51.665 -0400
OS Version: Mac OS X 10.5.7 (9J61)
Report Version: 6
Anonymous UUID: 29545AC5-AE33-48B6-81D2-E487CAC3FAFA
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread: 0
Thread 0 Crashed:
0 ??? 0000000000 0 + 0
1 ??? 0x010bb625 0 + 17544741
****and****
Process: Quartz Composer [5207]
Path: /Developer/Applications/Quartz Composer.app/Contents/
MacOS/Quartz Composer
Identifier: com.apple.QuartzComposer.editor
Version: 3.1 (63.2)
Build Info: QuartzComposerEditor-630200~2
Code Type: X86 (Native)
Parent Process: launchd [230]
Interval Since Last Report: 59 sec
Crashes Since Last Report: 1
Per-App Interval Since Last Report: 32 sec
Per-App Crashes Since Last Report: 1
Date/Time: 2009-05-28 16:07:27.073 -0400
OS Version: Mac OS X 10.5.7 (9J61)
Report Version: 6
Anonymous UUID: 29545AC5-AE33-48B6-81D2-E487CAC3FAFA
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000010
Crashed Thread: 0
Thread 0 Crashed:
0 com.apple.JavaScriptCore 0x9288e764 JSObjectCallAsFunction +
260
1 libobjc.A.dylib 0x965e7800 0x965a6000 + 268288
On May 28, 2009, at 3:29 PM, Christopher Wright wrote:
Granted, this is an unspeakably bad thing to do in javascript, but
starting/stopping this composition multiple times will cause QC to
crash.
<badJS.qtz>
Steps:
* load the composition
* open the viewer
* cmd-., cmd-r repeatedly (sometimes it only takes a couple
cycles, sometimes more than a dozen).
The pertinent script is:
var rand = Math.random();
Log("rand:"+rand);
if(rand > 0.5)
{
eval("\
function doStuff(){return 42;}\
function (__number outputNumber) main (__number inputNumber[2])\
{\
var result = new Object();\
result.outputNumber = doStuff();\
return result;\
}");
}
else
{
eval("function (__number cool) main (__number what)\
{\
var result = new Object();\
result.outputNumber = 24;\
return result;\
}");
}
(Yes, you'd never have a reason ever to do anything like this in
real life that I can think of, but crashing might be a problem)
backtrace varies, either calling a null function (top address is
0x00000000), or sometimes JSObjectCallAsFunction, as in:
Thread 0 Crashed:
0 com.apple.JavaScriptCore 0x95bfd764
JSObjectCallAsFunction + 260
1 libobjc.A.dylib 0x9247d800 0x9243c000 + 268288
Can anyone else reproduce this?
--
[ christopher wright ]
[email protected]
http://kineme.net/
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