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[bugs #11100] Hang on +dictionaryWithContentsOfURL:

From: anonymous
Subject: [bugs #11100] Hang on +dictionaryWithContentsOfURL:
Date: Mon, 22 Nov 2004 05:47:40 -0500
User-agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-us) AppleWebKit/125.5.5 (KHTML, like Gecko) Safari/125.11

This mail is an automated notification from the bugs tracker
 of the project: GNUstep.

[bugs #11100] Full Item Snapshot:

URL: <http://savannah.gnu.org/bugs/?func=detailitem&item_id=11100>
Project: GNUstep
Submitted by: 0
On: Mon 11/22/2004 at 05:41

Category:  Base/Foundation
Severity:  5 - Average
Item Group:  Bug
Resolution:  None
Privacy:  Public
Assigned to:  None
Status:  Open

Summary:  Hang on +dictionaryWithContentsOfURL:

Original Submission:  Using the attached program, I'm experiencing a hang when 
calling +dictionaryWithContentsOfURL:. The URL contains a serialized property 
list, with one key/value pair: Foo = Bar; .. OSX reads it fine. Each time I run 
it through gdb, and then kill it (sometimes after a few seconds, sometimes 
several minutes pass before I kill it), it always ends up in a different 
location. However, it does share one thing in common, in each instances where I 
break out of the program and examine the backtrace, everything is the same 
until the next call after -[NSRunLoop limitDateForMode:] (any that come after 
that, could be as shown below, or NSDefaultMallocZone(), etc). Output of 'bt' 
from one instance when I stopped it (see note above) is below:

(gdb) bt
#0  0x28354aef in gettimeofday () from /lib/libc.so.5
#1  0x28152035 in GSTimeNow () at NSDate.m:133
#2  0x28155340 in -[NSGDate timeIntervalSinceNow] (self=0x8305fa8, 
    _cmd=0x282ac110) at NSDate.m:1423
#3  0x281b5417 in -[NSRunLoop limitDateForMode:] (self=0x8305d28, 
    _cmd=0x282ac080, mode=0x282ac244) at NSRunLoop.m:1754
#4  0x281b615c in -[NSRunLoop runMode:beforeDate:] (self=0x8305d28, 
    _cmd=0x282b3aa0, mode=0x282ac244, date=0x8345188) at NSRunLoop.m:2035
#5  0x281eac61 in -[NSURL resourceDataUsingCache:] (self=0x80a0968, 
    _cmd=0x2829ba70, shouldUseCache=1 '01') at NSURL.m:1380
#6  0x2814955f in +[NSData dataWithContentsOfURL:] (self=0x2829b9e0, 
    _cmd=0x282af768, url=0x80a0968) at NSData.m:470
#7  0x281cc70c in -[NSString initWithContentsOfURL:] (self=0x806ec88, 
    _cmd=0x2829dfd8, url=0x80a0968) at NSString.m:1484
#8  0x28164026 in -[NSDictionary initWithContentsOfURL:] (self=0x80b0848, 
    _cmd=0x2829dfd8, aURL=0x80a0968) at NSDictionary.m:614
#9  0x28164312 in +[NSDictionary dictionaryWithContentsOfURL:] (
    self=0x2829de20, _cmd=0x8059150, aURL=0x80a0968) at NSDictionary.m:664
#10 0x0804b339 in main () at test.m:6
#11 0x0804b1b2 in _start ()

System is a FreeBSD 5.2.1 system, have only tested this with apple's Foundation 
on osx, and GNUstep's on FreeBSD. Works on apples, doesn't on GNUsteps.

File Attachments

Date: Mon 11/22/2004 at 05:41  Name: test.m  Size: 317B   By: None
Simple test program used to create above problem.

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