Re: Emacs hangs on Mac OS X

[Piet van Oostrum <piet@cs.uu.nl>]

>>>>> YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> (YM) wrote:

>YM> Unfortunately, the information about the interrupted library function
>YM> call seems to be already broken somehow.  Could you try to get
>YM> backtraces for a few instances of the hang?  Hopefully we will get
>YM> more detailed information.

Here is a complete one. The `lowest' malloc appears to be called from
localtime(). Mallocs from system library functions of course are much more
difficult to prevent, if at all.
IMHO this shows that is it quite bad to run the event loop in a signal handler.

There is an additional signal handler on top, but I think it is because I
tried to kill emacs.

#0  0xffff85d8 in ___spin_lock_relinquish () at /System/Library/Frameworks/System.framework/PrivateHeaders/ppc/cpu_capabilities.h:186
#1  0x900040a4 in szone_malloc ()
#2  0x90002e00 in malloc ()
#3  0x90015188 in __smakebuf ()
#4  0x90015058 in __swsetup ()
#5  0x9000fcac in __sfvwrite ()
#6  0x90027fc4 in fwrite ()
#7  0x000bc200 in Fdo_auto_save (no_message=58721337, current_only=58721289) at fileio.c:5939
#8  0x00081194 in shut_down_emacs (sig=15, no_x=1, stuff=58721289) at emacs.c:2109
#9  0x000813c4 in fatal_error_signal (sig=15) at emacs.c:380
#10 <signal handler called>
#11 0xffff8260 in ___spin_lock () at /System/Library/Frameworks/System.framework/PrivateHeaders/ppc/cpu_capabilities.h:178
#12 0x90003200 in szone_malloc ()
#13 0x900030e4 in malloc_zone_malloc ()
#14 0x907bb488 in CFAllocatorAllocate ()
#15 0x907dc41c in CFRunLoopRunSpecific ()
#16 0x93208740 in RunCurrentEventLoopInMode ()
#17 0x93207d4c in ReceiveNextEventCommon ()
#18 0x9330c940 in ReceiveNextEventInMode ()
#19 0x00158034 in XTread_socket (sd=41943096, expected=1, hold_quit=0xbfffac5c) at macterm.c:10410
#20 0x0008ad24 in read_avail_input (expected=0) at keyboard.c:6823
#21 0x001387a4 in alarm_signal_handler (signo=41943096) at atimer.c:397
#22 <signal handler called>
#23 0x90008954 in szone_calloc ()
#24 0x900087e4 in calloc ()
#25 0x9000b858 in token_table_add ()
#26 0x9001b0fc in notify_register_check ()
#27 0x90021598 in notify_register_tz ()
#28 0x900209d0 in tzset_basic ()
#29 0x9001fe9c in localtime ()
#30 0x000ec7f8 in Fcurrent_time_zone (specified_time=41943096) at editfns.c:1932
#31 0x000f684c in Ffuncall (nargs=41943096, args=0xbfffc7d4) at eval.c:2997
#32 0x0012813c in Fbyte_code (bytestr=4, vector=-1073756208, maxdepth=32) at bytecode.c:679
#33 0x000f62ec in funcall_lambda (fun=9107780, nargs=2, arg_vector=0xbfffc9b4) at eval.c:3184
#34 0x000f69fc in Ffuncall (nargs=41943096, args=0x2a9a441) at eval.c:3054
#35 0x0012813c in Fbyte_code (bytestr=4, vector=-1073755728, maxdepth=72) at bytecode.c:679
#36 0x000f62ec in funcall_lambda (fun=9108084, nargs=3, arg_vector=0xbfffcbb4) at eval.c:3184
#37 0x000f69fc in Ffuncall (nargs=41943096, args=0x2954ee9) at eval.c:3054
#38 0x0012813c in Fbyte_code (bytestr=4, vector=-1073755216, maxdepth=72) at bytecode.c:679
#39 0x000f62ec in funcall_lambda (fun=9101588, nargs=1, arg_vector=0xbfffcdc0) at eval.c:3184
#40 0x000f69fc in Ffuncall (nargs=41943096, args=0x2a9a279) at eval.c:3054
#41 0x0012813c in Fbyte_code (bytestr=4, vector=-1073754692, maxdepth=40) at bytecode.c:679
#42 0x000f5aec in Feval (form=2802064) at eval.c:2334
#43 0x000f8a14 in internal_lisp_condition_case (var=58721289, bodyform=24728245, handlers=24727181) at eval.c:1426
#44 0x00128b30 in Fbyte_code (bytestr=4, vector=-1073753408, maxdepth=24) at bytecode.c:869
#45 0x000f62ec in funcall_lambda (fun=51800004, nargs=1, arg_vector=0xbfffd4a4) at eval.c:3184
#46 0x000f69fc in Ffuncall (nargs=41943096, args=0x3853b29) at eval.c:3054
#47 0x0012813c in Fbyte_code (bytestr=4, vector=-1073752928, maxdepth=24) at bytecode.c:679
#48 0x000f62ec in funcall_lambda (fun=51924788, nargs=1, arg_vector=0xbfffd68c) at eval.c:3184
#49 0x000f69fc in Ffuncall (nargs=41943096, args=0x3853ba1) at eval.c:3054
#50 0x0012813c in Fbyte_code (bytestr=4, vector=-1073752440, maxdepth=32) at bytecode.c:679
#51 0x000f5aec in Feval (form=2802064) at eval.c:2334
#52 0x000f8a14 in internal_lisp_condition_case (var=58721289, bodyform=41877517, handlers=41879469) at eval.c:1426
#53 0x00128b30 in Fbyte_code (bytestr=4, vector=-1073751168, maxdepth=32) at bytecode.c:869
#54 0x000f62ec in funcall_lambda (fun=52188180, nargs=4, arg_vector=0xbfffdd64) at eval.c:3184
#55 0x000f69fc in Ffuncall (nargs=41943096, args=0x2cf9181) at eval.c:3054
#56 0x0012813c in Fbyte_code (bytestr=4, vector=-1073750688, maxdepth=48) at bytecode.c:679
#57 0x000f62ec in funcall_lambda (fun=55535444, nargs=4, arg_vector=0xbfffdf54) at eval.c:3184
#58 0x000f69fc in Ffuncall (nargs=41943096, args=0x7338521) at eval.c:3054
#59 0x0012813c in Fbyte_code (bytestr=4, vector=-1073750192, maxdepth=48) at bytecode.c:679
#60 0x000f62ec in funcall_lambda (fun=54957460, nargs=2, arg_vector=0xbfffe144) at eval.c:3184
#61 0x000f69fc in Ffuncall (nargs=41943096, args=0x2c2f0a1) at eval.c:3054
#62 0x0012813c in Fbyte_code (bytestr=4, vector=-1073749696, maxdepth=72) at bytecode.c:679
#63 0x000f62ec in funcall_lambda (fun=55347604, nargs=0, arg_vector=0xbfffe3ac) at eval.c:3184
#64 0x000f69fc in Ffuncall (nargs=41943096, args=0x2c9af91) at eval.c:3054
#65 0x000f8180 in run_hook_with_args (nargs=1, args=0xbfffe3a8, cond=to_completion) at eval.c:2656
#66 0x000f82bc in Frun_hooks (nargs=1, args=0x0) at eval.c:2519
#67 0x000f6738 in Ffuncall (nargs=41943096, args=0x3810be1) at eval.c:2978
#68 0x000f83a0 in Fapply (nargs=2, args=0xbfffe5a4) at eval.c:2430
#69 0x000f6738 in Ffuncall (nargs=41943096, args=0x3811661) at eval.c:2978
#70 0x0012813c in Fbyte_code (bytestr=4, vector=-1073748576, maxdepth=24) at bytecode.c:679
#71 0x000f62ec in funcall_lambda (fun=51734836, nargs=1, arg_vector=0xbfffe784) at eval.c:3184
#72 0x000f69fc in Ffuncall (nargs=41943096, args=0x2c717c9) at eval.c:3054
#73 0x0012813c in Fbyte_code (bytestr=4, vector=-1073748096, maxdepth=40) at bytecode.c:679
#74 0x000f62ec in funcall_lambda (fun=55317636, nargs=0, arg_vector=0xbfffe974) at eval.c:3184
#75 0x000f69fc in Ffuncall (nargs=41943096, args=0x2beab21) at eval.c:3054
#76 0x0012813c in Fbyte_code (bytestr=4, vector=-1073747600, maxdepth=40) at bytecode.c:679
#77 0x000f62ec in funcall_lambda (fun=55361380, nargs=1, arg_vector=0xbfffeba4) at eval.c:3184
#78 0x000f69fc in Ffuncall (nargs=41943096, args=0x2ef6719) at eval.c:3054
#79 0x000f344c in Fcall_interactively (function=49243929, record_flag=58721289, keys=56882580) at callint.c:860
#80 0x000892ec in Fcommand_execute (cmd=49243929, record_flag=58721289, keys=58721289, special=-1) at keyboard.c:10013
#81 0x000927c4 in command_loop_1 () at keyboard.c:1873
#82 0x000f43e8 in internal_condition_case (bfun=0x916c0 <command_loop_1>, handlers=58767529, hfun=0x89fe0 <cmd_error>) at eval.c:1481
#83 0x00083110 in command_loop_2 () at keyboard.c:1329
#84 0x000f4270 in internal_catch (tag=41943096, func=0x830d0 <command_loop_2>, arg=58721289) at eval.c:1222
#85 0x00082e20 in command_loop () at keyboard.c:1308
#86 0x00082f44 in recursive_edit_1 () at keyboard.c:1006
#87 0x00083090 in Frecursive_edit () at keyboard.c:1067
#88 0x00082a1c in main (argc=400, argv=0xbffff8dc) at emacs.c:1761

-- 
Piet van Oostrum <piet@cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4]
Private email: piet@vanoostrum.org