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bug#12247: 24.2.50; Leak in NextStep autorelease


From: Jan Djärv
Subject: bug#12247: 24.2.50; Leak in NextStep autorelease
Date: Wed, 22 Aug 2012 09:34:01 +0200

22 aug 2012 kl. 08:00 skrev Ivan Andrus:

> Indeed that fixes it.  I never would have guessed it was the cursor.
> 
> Thanks,

Thanks for testing, closing bug.

        Jan D.

> Ivan
> 
> On Aug 21, 2012, at 10:51 PM, Jan Djärv wrote:
> 
>> Hello.
>> 
>> 21 aug 2012 kl. 15:49 skrev Ivan Andrus:
>> 
>>> Starting from `emacs -Q` with a NextStep build (well, Cocoa actually)
>>> run M-x shell RET and every half second the following message is printed
>>> to the console:
>>> 
>>> 2012-08-21 12:26:07.872 Emacs[58915:3403] *** __NSAutoreleaseNoPool(): 
>>> Object 0x1007c9200 of class NSEvent autoreleased with no pool in place - 
>>> just leaking
>>> 
>> 
>> That would be the blinking cursor.
>> I can't reproduce this on 10.7.  However, I have checked in a fix.  Can you 
>> test it?
>> 
>> Thanks,
>> 
>>      Jan D.
>> 
>> 
>>> Setting the environment variable NSAutoreleaseHaltOnNoPool=YES and
>>> running under gdb I get the following backtrace:
>>> 
>>> 
>>> Program received signal SIGTRAP, Trace/breakpoint trap.
>>> [Switching to process 59016]
>>> 0x00007fff81ab8d61 in __NSAutoreleaseNoPool ()
>>> (gdb) thread apply all bt
>>> 
>>> Thread 5 (process 59016):
>>> #0  0x00007fff80bb2a2a in __workq_kernreturn ()
>>> #1  0x00007fff80bb2e3c in _pthread_wqthread ()
>>> #2  0x00007fff80bb2aa5 in start_wqthread ()
>>> 
>>> Thread 4 (process 59016):
>>> #0  0x00007fff81ab8d61 in __NSAutoreleaseNoPool ()
>>> #1  0x00007fff81a03e79 in _CFAutoreleasePoolAddObject ()
>>> #2  0x00007fff81a03be6 in -[NSObject(NSObject) autorelease] ()
>>> #3  0x00007fff8659265e in +[NSEvent 
>>> otherEventWithType:location:modifierFlags:timestamp:windowNumber:context:subtype:data1:data2:]
>>>  ()
>>> #4  0x000000010018eb6e in ns_send_appdefined (value=<value temporarily 
>>> unavailable, due to optimizations>) at nsterm.m:3394
>>> #5  0x000000010019079a in -[EmacsApp fd_handler:] (self=<value temporarily 
>>> unavailable, due to optimizations>, _cmd=<value temporarily unavailable, 
>>> due to optimizations>, unused=<value temporarily unavailable, due to 
>>> optimizations>) at nsterm.m:4653
>>> #6  0x00007fff82d91114 in __NSThread__main__ ()
>>> #7  0x00007fff80bd1fd6 in _pthread_start ()
>>> #8  0x00007fff80bd1e89 in thread_start ()
>>> 
>>> Thread 3 (process 59016):
>>> #0  0x00007fff80bb2a2a in __workq_kernreturn ()
>>> #1  0x00007fff80bb2e3c in _pthread_wqthread ()
>>> #2  0x00007fff80bb2aa5 in start_wqthread ()
>>> 
>>> Thread 2 (process 59016):
>>> #0  0x00007fff80bb1c0a in kevent ()
>>> #1  0x00007fff80bb3add in _dispatch_mgr_invoke ()
>>> #2  0x00007fff80bb37b4 in _dispatch_queue_invoke ()
>>> #3  0x00007fff80bb32de in _dispatch_worker_thread2 ()
>>> #4  0x00007fff80bb2c08 in _pthread_wqthread ()
>>> #5  0x00007fff80bb2aa5 in start_wqthread ()
>>> 
>>> Thread 1 (process 59016):
>>> #0  0x00007fff80b98d7a in mach_msg_trap ()
>>> #1  0x00007fff80b993ed in mach_msg ()
>>> #2  0x00007fff819fa902 in __CFRunLoopRun ()
>>> #3  0x00007fff819f9d8f in CFRunLoopRunSpecific ()
>>> #4  0x00007fff890bb7ee in RunCurrentEventLoopInMode ()
>>> #5  0x00007fff890bb5f3 in ReceiveNextEventCommon ()
>>> #6  0x00007fff890bb4ac in BlockUntilNextEventMatchingListInMode ()
>>> #7  0x00007fff86378eb2 in _DPSNextEvent ()
>>> #8  0x00007fff86378801 in -[NSApplication 
>>> nextEventMatchingMask:untilDate:inMode:dequeue:] ()
>>> #9  0x00007fff8633e68f in -[NSApplication run] ()
>>> #10 0x000000010019ac26 in ns_select (nfds=<value temporarily unavailable, 
>>> due to optimizations>, readfds=0x7fff5fbfdca0, writefds=0x7fff5fbfdc20, 
>>> exceptfds=<value temporarily unavailable, due to optimizations>, 
>>> timeout=0x7fff5fbfdd40, sigmask=<value temporarily unavailable, due to 
>>> optimizations>) at nsterm.m:3573
>>> #11 0x000000010016a27d in wait_reading_process_output (time_limit=<value 
>>> temporarily unavailable, due to optimizations>, nsecs=0, read_kbd=-1, 
>>> do_display=1, wait_for_cell=4320145466, wait_proc=0x0, just_wait_proc=0) at 
>>> process.c:4680
>>> #12 0x00000001000b6bf6 in read_char (commandflag=1, nmaps=2, 
>>> maps=0x7fff5fbfe190, prev_event=<value temporarily unavailable, due to 
>>> optimizations>, used_mouse_menu=0x7fff5fbfe3b4, end_time=0x0) at 
>>> keyboard.c:3915
>>> #13 0x00000001000b8ca5 in read_key_sequence (keybuf=0x7fff5fbfe470, 
>>> bufsize=30, prompt=4320145466, dont_downcase_last=0, 
>>> can_return_switch_frame=1, fix_current_buffer=1) at keyboard.c:9372
>>> #14 0x00000001000bb0ae in command_loop_1 () at keyboard.c:1510
>>> #15 0x0000000100122605 in internal_condition_case (bfun=0x1000bae50 
>>> <command_loop_1>, handlers=4320212330, hfun=0x1000b1580 <cmd_error>) at 
>>> eval.c:1322
>>> #16 0x00000001000af137 in command_loop_2 (ignore=<value temporarily 
>>> unavailable, due to optimizations>) at keyboard.c:1204
>>> #17 0x000000010012270b in internal_catch (tag=<value temporarily 
>>> unavailable, due to optimizations>, func=0x1000af100 <command_loop_2>, 
>>> arg=4320145466) at eval.c:1079
>>> #18 0x00000001000af7ac in recursive_edit_1 () at keyboard.c:1183
>>> #19 0x00000001000af91b in Frecursive_edit () at keyboard.c:868
>>> #20 0x00000001000a8df0 in main (argc=2, argv=0x7fff5fbfea48) at emacs.c:1662
>>> 
>>> 
>>> 
>>> In GNU Emacs 24.2.50.2 (i386-apple-darwin10.8.0, NS apple-appkit-1038.36)
>>> of 2012-08-20 on oroszlan.local
>>> Bzr revision: 109700 address@hidden
>>> Windowing system distributor `Apple', version 10.3.1038
>>> Configured using:
>>> `configure '--with-ns''
>>> 
>>> Important settings:
>>> value of $LC_CTYPE: UTF-8
>>> locale-coding-system: utf-8-unix
>>> default enable-multibyte-characters: t
>>> 
>>> Major mode: Lisp Interaction
>>> 
>>> Minor modes in effect:
>>> tooltip-mode: t
>>> mouse-wheel-mode: t
>>> tool-bar-mode: t
>>> menu-bar-mode: t
>>> file-name-shadow-mode: t
>>> global-font-lock-mode: t
>>> font-lock-mode: t
>>> blink-cursor-mode: t
>>> auto-composition-mode: t
>>> auto-encryption-mode: t
>>> auto-compression-mode: t
>>> line-number-mode: t
>>> transient-mark-mode: t
>>> 
>>> Recent input:
>>> <help-echo> M-x r e p o <tab> r <tab> <return>
>>> 
>>> Recent messages:
>>> For information about GNU Emacs and the GNU system, type C-h C-a.
>>> Making completion list...
>>> 
>>> Load-path shadows:
>>> None found.
>>> 
>>> Features:
>>> (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
>>> mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
>>> gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
>>> mail-prsvr mail-utils help-mode easymenu time-date tooltip ediff-hook
>>> vc-hooks lisp-float-type mwheel ns-win tool-bar dnd fontset image
>>> regexp-opt fringe tabulated-list newcomment lisp-mode register page
>>> menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
>>> syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
>>> vietnamese tibetan thai tai-viet lao korean japanese hebrew greek
>>> romanian slovak czech european ethiopic indian cyrillic chinese
>>> case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs
>>> button faces cus-face files text-properties overlay sha1 md5 base64
>>> format env code-pages mule custom widget hashtable-print-readable
>>> backquote make-network-process ns multi-tty emacs)
>>> 
>>> 
>> 
> 
> -Ivan






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