Re: Segfault when NSTextView is released

Nope I was wrong..
Using the designated initializer (with textContainer nil or set to created text container object) fixes the release bug but whenever I try to change a property I get crash. Stuck between rock and hard place...

#0 0x0000000800d9e191 in -[NSTextView setTextColor:] (self=<value optimized out>, _cmd=<value optimized out>, color=<value optimized out>) at NSTextView.m:2407
#1 0x000000000041d74f in -[PhotoViewController loadView] (self=0x81df558d0, _cmd=0x8011e7770) at PhotoViewController.m:81
#2 0x0000000800dc5122 in -[NSViewController view] (self=0x81df558d0, _cmd=<value optimized out>) at NSViewController.m:94
#3 0x000000000042b255 in -[AppDelegate applicationDidFinishLaunching:] (self=0x81b091510, _cmd=0x8010fe2a0, notification=0x81d1f1c50) at AppDelegate.m:171
#4 0x00000008015dec4c in -[NSNotificationCenter _postAndRelease:] (self=0x81b2b96b0, _cmd=<value optimized out>, notification=0x81d1f1c50) at NSNotificationCenter.m:1191
#5 0x0000000800c9884e in -[NSApplication _didFinishLaunching] (self=0x81b0a9490, _cmd=<value optimized out>) at NSApplication.m:1186
#6 0x0000000800c995ce in -[NSApplication run] (self=0x81b0a9490, _cmd=<value optimized out>) at NSApplication.m:1539
#7 0x0000000000426935 in main (argc=2, argv=0x7fffffffc798) at main.m:20

Johannes Lundberg

BRILLIANTSERVICE CO., LTD.

On Thu, Feb 13, 2014 at 3:14 PM, Lundberg, Johannes <johannes@brilliantservice.co.jp> wrote:

Ok it seems like using the

-(id) initWithFrame: (NSRect)frameRect
textContainer: (NSTextContainer *)container;

initializer is the way to go. No segfault with this initializer.

However as it says in the header:
/* This variant will create the text network (NSTextStorage, NSLayoutManager,
and a NSTextContainer). The network will be owned by the NSTextView;
releasing it will release all parts of the network. */
-(id) initWithFrame: (NSRect)frameRect;

initWithFrame should work and not cause segfault so something seems to be wrong..

(I know I wrote alloc] init] in the previous mail but I was actually using initWithFrame and it caused segfault for me)

--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.

On Thu, Feb 13, 2014 at 1:58 PM, Lundberg, Johannes <johannes@brilliantservice.co.jp> wrote:

Hi

I'm using latest version of GNUstep on FreeBSD 10 64bit with ARC.
When my NSTextView is freed I get segfault. I haven't seen this behavior for any other UI element.

Example: Put this code in loadview
NSTextView *tv = [[NSTextView alloc] init];

and it segfaults when object is released.

I haven't really done any debugging yet except finding where this happens. Thought I send this mail first before I dive into the gui source code.

#0 0x0000000802d9aa74 in objc_msgSend_fpret () from /usr/local/lib/libobjc.so.4.6
#1 0x0000000800db5379 in -[NSView dealloc] (self=0x81aee9b90, _cmd=<value optimized out>) at NSView.m:651
#2 0x0000000800d9951a in -[NSTextView dealloc] (self=<value optimized out>, _cmd=<value optimized out>) at NSTextView.m:1141
#3 0x0000000800d9121b in -[NSTextContainer dealloc] (self=0x81ddd1f30, _cmd=0x8011e3b60) at NSTextContainer.m:134
#4 0x00000008014fe67a in -[GSArray dealloc] (self=0x81e411290, _cmd=<value optimized out>) at GSArray.m:137
#5 0x0000000802d9b5c9 in objc_autoreleasePoolPop () from /usr/local/lib/libobjc.so.4.6
#6 0x000000080154a400 in -[NSAutoreleasePool dealloc] (self=0x81af462f0, _cmd=<value optimized out>) at NSAutoreleasePool.m:729
#7 0x0000000800c975d4 in -[NSApplication run] (self=0x81aca9490, _cmd=0x8011e3b60) at NSApplication.m:1543
#8 0x0000000000425965 in main (argc=2, argv=0x7fffffffc798) at main.m:20

Best regards

--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.

From:	Lundberg, Johannes
Subject:	Re: Segfault when NSTextView is released
Date:	Thu, 13 Feb 2014 17:16:09 +0900