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bug#2778: 23.0.91; Emacs (cvs) hangs


From: Jules Colding
Subject: bug#2778: 23.0.91; Emacs (cvs) hangs
Date: Wed, 25 Mar 2009 14:45:59 +0100

I've recently, over the last week or so, seen emacs hang forever. I did a "t a 
a bt f" in gdb today but I forgot the xbacktrace command. The gdb outpout is 
below.

Best regards,
  jules

address@hidden ~/work/src/emacs/nextstep/Emacs.app/Contents/MacOS $ gdb ./Emacs 
31574
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-apple-darwin"...Reading symbols for shared 
libraries .......... done

/Users/colding/work/src/emacs/nextstep/Emacs.app/Contents/MacOS/31574: No such 
file or directory.
Attaching to program: 
`/Users/colding/work/src/emacs/nextstep/Emacs.app/Contents/MacOS/Emacs', 
process 31574.
Reading symbols for shared libraries 
+++++++++........................................................................
 done
0x94303f41 in -[NSApplication _indexOfWindow:] ()
(gdb) t a a bt f

Thread 1 (process 31574 thread 0x20b):
#0  0x94303f41 in -[NSApplication _indexOfWindow:] ()
No symbol table info available.
#1  0x94443c7c in -[NSEvent window] ()
No symbol table info available.
#2  0x0016cab2 in -[EmacsView keyDown:] (self=0x14f23950, _cmd=0x9163d590, 
theEvent=0x14fe7190) at nsterm.m:4440
        dpyinfo = <value temporarily unavailable, due to optimizations>
        code = <value temporarily unavailable, due to optimizations>
        fnKeysym = <value temporarily unavailable, due to optimizations>
        nsEvArray = (NSMutableArray *) 0x86e3e0
        firstTime = 0 '\0'
#3  0x0017d155 in -[EmacsMenu performKeyEquivalent:] (self=0x837010, 
_cmd=0x915f3a60, theEvent=0x14fe7190) at nsmenu.m:591
No locals.
#4  0x944ad3ac in -[NSApplication _handleKeyEquivalent:] ()
No symbol table info available.
#5  0x943ca16b in -[NSApplication sendEvent:] ()
No symbol table info available.
#6  0x0016b825 in -[EmacsApp sendEvent:] (self=0x819f70, _cmd=0x915a44b8, 
theEvent=0x14fe7190) at nsterm.m:4059
        window = (NSWindow *) 0x14f24430
        objc_super = {
  self = 0x819f70, 
  cls = 0xa0523ea0
}
#7  0x9432769f in -[NSApplication run] ()
No symbol table info available.
#8  0x00169c23 in ns_read_socket (terminal=0x8319a0, expected=1, 
hold_quit=0xbfffef94) at nsterm.m:3189
        ev = {
  kind = NO_EVENT, 
  code = 0, 
  part = scroll_bar_above_handle, 
  modifiers = 0, 
  x = 0, 
  y = 0, 
  timestamp = 0, 
  padding = {0x0, 0x0}, 
  frame_or_window = 0, 
  arg = 0
}
        nevents = <value temporarily unavailable, due to optimizations>
        lastCheck = (NSDate *) 0x0
#9  0x0009d271 in read_avail_input (expected=1) at keyboard.c:7089
        nr = 1
        hold_quit = {
  kind = NO_EVENT, 
  code = 0, 
  part = scroll_bar_above_handle, 
  modifiers = 0, 
  x = 0, 
  y = 0, 
  timestamp = 0, 
  padding = {0x0, 0x0}, 
  frame_or_window = 0, 
  arg = 0
}
        next = (struct terminal *) 0x0
        nread = 0
        err = 0
        t = (struct terminal *) 0x8319a0
#10 0x00169ff4 in ns_select (nfds=1, readfds=0xbffff268, writefds=0x0, 
exceptfds=0x0, timeout=0xbffff2e8) at nsterm.m:3262
        result = <value temporarily unavailable, due to optimizations>
        ev = <value temporarily unavailable, due to optimizations>
#11 0x0014e078 in wait_reading_process_output (time_limit=0, microsecs=0, 
read_kbd=-1, do_display=1, wait_for_cell=25165833, wait_proc=0x0, 
just_wait_proc=0) at process.c:4811
        timeout_reduced_for_timers = 1
        channel = <value temporarily unavailable, due to optimizations>
        nfds = 0
        Available = {
  fds_bits = {0 <repeats 32 times>}
}
        Connecting = {
  fds_bits = {0 <repeats 32 times>}
}
        check_connect = 0
        check_delay = 0
        no_avail = <value temporarily unavailable, due to optimizations>
        xerrno = <value temporarily unavailable, due to optimizations>
        proc = <value temporarily unavailable, due to optimizations>
        timeout = {
  tv_sec = 0, 
  tv_usec = 124944
}
        end_time = {
  tv_sec = 0, 
  tv_usec = 0
}
        wait_channel = -1
        got_some_input = 0
#12 0x0009f009 in read_char (commandflag=1, nmaps=2, maps=0xbffff4f0, 
prev_event=25165833, used_mouse_menu=0xbffff5e8, end_time=0x0) at 
keyboard.c:4097
        c = <value temporarily unavailable, due to optimizations>
        obj = <value temporarily unavailable, due to optimizations>
        end_time = (struct timeval *) Cannot access memory at address 0x0
(gdb) kill
Kill the program being debugged? (y or n) y
(gdb) quit
address@hidden ~/work/src/emacs/nextstep/Emacs.app/Contents/MacOS $ 



In GNU Emacs 23.0.91.14 (i386-apple-darwin9.6.0, NS apple-appkit-949.43)
 of 2009-03-25 on apollo.42tools.com
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns' '--without-x' '--without-sound''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: ObjC/l

Minor modes in effect:
  show-paren-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
y <menu-bar> <help-menu> <send-emacs-bug-report>

Recent messages:
Compiling /Users/colding/work/elisp/site-start.el...done
Wrote /Users/colding/work/elisp/site-start.elc
Loading /Users/colding/work/elisp/site-start.elc...done
Loading /Users/colding/.emacs.d/elpa/package.el (source)...done
Warning: desktop file appears to be in use by PID 31574.
Using it may cause conflicts.  Use it anyway? (y or n) 
Loading cc-mode...done
Loading vc-svn...done
Desktop: 5 buffers restored.
For information about GNU Emacs and the GNU system, type C-h C-a.






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