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[bugs #11100] Hang on +dictionaryWithContentsOfURL:
From: |
anonymous |
Subject: |
[bugs #11100] Hang on +dictionaryWithContentsOfURL: |
Date: |
Tue, 23 Nov 2004 07:25:17 -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] Latest Modifications:
Changes by: Anonymous user
Date:
Tue 11/23/2004 at 12:19
------------------ Additional Follow-up Comments ----------------------------
This can be closed, my mistake. I was testing this on a system that hadn't been
updated in 2 months, it worked on the machine that was updated 2 days ago.
/**************************************************************************/
[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 10:41
Category: Base/Foundation
Severity: 5 - Average
Item Group: Bug
Resolution: Unreproducible
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.
Follow-up Comments
------------------
-------------------------------------------------------
Date: Tue 11/23/2004 at 12:19 By: 0 <None>
This can be closed, my mistake. I was testing this on a system that hadn't been
updated in 2 months, it worked on the machine that was updated 2 days ago.
-------------------------------------------------------
Date: Tue 11/23/2004 at 04:36 By: Richard Frith-Macdonald <CaS>
Further to this ... I do have GNUstep-base on an apple laptop ... and the
Darwin operating system there is a BSD derivative. I've just run the test
program on that machine and it worked fine there too, suggesting that the
problem may be specific to the OS version you are running or even too your
machine.
-------------------------------------------------------
Date: Tue 11/23/2004 at 04:15 By: Richard Frith-Macdonald <CaS>
Thanks for the public URL.
I've tried using it with your test program, and it worked fine on my Debian
GNU/Linux system.
So it looks like there may be a BSD specific problem... which is a problem for
me as I don't have a BSD system to debug on.
You could try hacking base/Source/GSHTTPURLHandle.m to set the 'debug' flag
when a handle is initialised so that your test program will log all I/O and you
can get some idea of what is going on, but if that's not informative enough,
the only real option I can see is either to insert lots of debugging statements
in GSHTTPURLHandle.m or to step through under gdb to find out what is happening.
-------------------------------------------------------
Date: Mon 11/22/2004 at 22:15 By: 0 <None>
I am using the CVS from a day and a half ago, and you may use
http://www.fuqn.ca/foo.plist as a source of the property list I was using.
-------------------------------------------------------
Date: Mon 11/22/2004 at 12:16 By: Richard Frith-Macdonald <CaS>
I can't reproduce this ... but there are variuos possibilities -
Various versions of NSURL have had problems with detecting the ends of
responses with some pages from some web servers.
There are no known problems with the CVS version, but you don't say whether you
are using up to date code from CVS or another version of GNUstep.
Unless there is a public URL that can be used to demonstrate the problem with
the latest code from CVS, my assumption would be that any torubles are already
fixed in the current code.
File Attachments
-------------------
-------------------------------------------------------
Date: Mon 11/22/2004 at 10:41 Name: test.m Size: 317B By: None
Simple test program used to create above problem.
http://savannah.gnu.org/bugs/download.php?item_id=11100&item_file_id=1903
For detailed info, follow this link:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=11100>
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Message sent via/by Savannah
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- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, anonymous, 2004/11/22
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, Richard Frith-Macdonald, 2004/11/22
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, anonymous, 2004/11/22
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, Richard Frith-Macdonald, 2004/11/22
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, Richard Frith-Macdonald, 2004/11/22
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:,
anonymous <=
- [bugs #11100] Hang on +dictionaryWithContentsOfURL:, Richard Frith-Macdonald, 2004/11/23