Subject: Re: bug#27736: OSX 10.6.8: Building from master branch fails.

From: "Charles A. Roelli" <[email-masked]>
Date: Tue, 18 Jul 2017 20:42:10 +0200

Thanks for checking this so quickly.

It looks like your machine also enters an infinite loop when
evaluating the same form that I posted here:

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27706#5

I'm not sure where we should patch this issue: in Lisp, in
lib/time_rz.c (which is part of gnulib if I remember right), or in
src/editfns.c (emacs_localtime_rz).  Does anyone have an opinion about
this?

On 18/07/2017 18:07, Keith David Bershatsky wrote:
> Thank you, Eli, for teaching me about:
>
>> "pp" is defined in src/.gdbinit.  You need to tell GDB to read it:
>>
>>    (gdb) source /path/to/emacs/src/.gdbinit
> Here is a new backtrace for the frame that deals with decode_time:
>
> (gdb) frame 10
> #10 0x00000001001e9746 in Fdecode_time (specified_time={i = 4351999171}, zone={i = 0}) at editfns.c:2163
> 2163	  struct tm *tm = emacs_localtime_rz (tz, &time_spec, &local_tm);
> (gdb) pp specified_time
> (-1034058203136 0)
>
> And, here is the whole thing:
>
> Last login: Tue Jul 18 08:48:40 on console
>
> server:emacs HOME$ gdb /Users/HOME/Desktop/emacs/src/emacs
>
> GNU gdb 6.3.50-20050815 (Apple version gdb-1344) (Fri Jul  3 01:19:56 UTC 2009)
> 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 "x86_64-apple-darwin"...Reading symbols for shared libraries ........... done
>
> (gdb) source /Users/HOME/Desktop/emacs/src/.gdbinit
> Warning: /Users/HOME/Desktop/emacs/../lwlib: No such file or directory.
> DISPLAY = /tmp/launch-uSoMoF/org.x:0
> TERM = xterm-color
> Breakpoint 1 at 0x100134c52: file emacs.c, line 364.
> Breakpoint 2 at 0x100162889: file sysdep.c, line 1016.
> /Users/HOME/Desktop/emacs/src/.gdbinit:1273: Error in sourced command file:
> Undefined command: "python".  Try "help".
> (gdb) run -batch --no-site-file --no-site-lisp --eval '(setq load-prefer-newer t)' -f batch-byte-compile /Users/HOME/Desktop/emacs/lisp/org/org-timer.el
> Starting program: /Users/HOME/Desktop/emacs/src/emacs -batch --no-site-file --no-site-lisp --eval '(setq load-prefer-newer t)' -f batch-byte-compile /Users/HOME/Desktop/emacs/lisp/org/org-timer.el
> Reading symbols for shared libraries .++++++++++............................................................................... done
> ^C
> Breakpoint 1, terminate_due_to_signal (sig=2, backtrace_limit=40) at emacs.c:364
> 364	  signal (sig, SIG_DFL);
> (gdb) bt
> #0  terminate_due_to_signal (sig=2, backtrace_limit=40) at emacs.c:364
> #1  0x0000000100163bdc in handle_fatal_signal (sig=Could not find the frame base for "handle_fatal_signal".
> ) at sysdep.c:1714
> #2  0x0000000100163b10 in deliver_process_signal (sig=2, handler=0x100163bc4 <handle_fatal_signal>) at sysdep.c:1654
> #3  0x0000000100163bf6 in deliver_fatal_signal (sig=2) at sysdep.c:1720
> #4  <signal handler called>
> #5  0x00007fff87007b0a in timesub ()
> #6  0x00007fff8700781c in _st_localsub ()
> #7  0x00007fff87010d71 in localtime_r ()
> #8  0x00000001002f5696 in localtime_rz (tz=0x101000f90, t=0x7fff5fbf9498, tm=0x7fff5fbf93c0) at time_rz.c:296
> #9  0x00000001001e3afd in emacs_localtime_rz (tz=0x101000f90, t=0x7fff5fbf9498, tm=0x7fff5fbf93c0) at editfns.c:103
> #10 0x00000001001e9746 in Fdecode_time (specified_time={i = 4351999171}, zone={i = 0}) at editfns.c:2163
> #11 0x000000010020183b in funcall_subr (subr=0x1007bcdd8, numargs=1, args=0x7fff5fbf9608) at eval.c:2817
> #12 0x000000010020133c in Ffuncall (nargs=2, args=0x7fff5fbf9600) at eval.c:2740
> #13 0x000000010025ad5d in exec_byte_code (bytestr={i = 4333399444}, vector={i = 4352860773}, maxdepth={i = 18}, args_template={i = 1030}, nargs=1, args=0x7fff5fbf9a08) at bytecode.c:629
> #14 0x0000000100201fe7 in funcall_lambda (fun={i = 4352860813}, nargs=1, arg_vector=0x7fff5fbf9a00) at eval.c:2941
> #15 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbf99f8) at eval.c:2742
> #16 0x000000010025ad5d in exec_byte_code (bytestr={i = 4333399380}, vector={i = 4352860677}, maxdepth={i = 42}, args_template={i = 3086}, nargs=3, args=0x7fff5fbf9e30) at bytecode.c:629
> #17 0x0000000100201fe7 in funcall_lambda (fun={i = 4352860725}, nargs=3, arg_vector=0x7fff5fbf9e18) at eval.c:2941
> #18 0x0000000100201374 in Ffuncall (nargs=4, args=0x7fff5fbf9e10) at eval.c:2742
> #19 0x000000010025ad5d in exec_byte_code (bytestr={i = 4333399348}, vector={i = 4352860861}, maxdepth={i = 46}, args_template={i = 0}, nargs=0, args=0x0) at bytecode.c:629
> #20 0x0000000100259e7b in Fbyte_code (bytestr={i = 4333399348}, vector={i = 4352860861}, maxdepth={i = 46}) at bytecode.c:321
> #21 0x00000001001ffac1 in eval_sub (form={i = 4352004051}) at eval.c:2222
> #22 0x00000001001fb503 in Fdefconst (args={i = 4352004099}) at eval.c:809
> #23 0x00000001001ff63a in eval_sub (form={i = 4352004115}) at eval.c:2169
> #24 0x0000000100239455 in readevalloop (readcharfun={i = 24096}, infile0=0x7fff5fbfa750, sourcename={i = 4330661364}, printflag=false, unibyte={i = 0}, readfun={i = 0}, start={i = 0}, end={i = 0}) at lread.c:2038
> #25 0x0000000100237532 in Fload (file={i = 4331687524}, noerror={i = 0}, nomessage={i = 45360}, nosuffix={i = 0}, must_suffix={i = 45360}) at lread.c:1425
> #26 0x0000000100210444 in Frequire (feature={i = 42008288}, filename={i = 0}, noerror={i = 0}) at fns.c:2801
> #27 0x000000010020186f in funcall_subr (subr=0x1007bed48, numargs=1, args=0x7fff5fbfacd0) at eval.c:2820
> #28 0x000000010020133c in Ffuncall (nargs=2, args=0x7fff5fbfacc8) at eval.c:2740
> #29 0x0000000100200087 in Fapply (nargs=2, args=0x7fff5fbfacc8) at eval.c:2328
> #30 0x00000001002016cc in funcall_subr (subr=0x1007bda88, numargs=2, args=0x7fff5fbfacc8) at eval.c:2795
> #31 0x000000010020133c in Ffuncall (nargs=3, args=0x7fff5fbfacc0) at eval.c:2740
> #32 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330679892}, vector={i = 4455527021}, maxdepth={i = 38}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfb138) at bytecode.c:629
> #33 0x0000000100201fe7 in funcall_lambda (fun={i = 4455527189}, nargs=1, arg_vector=0x7fff5fbfb130) at eval.c:2941
> #34 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfb128) at eval.c:2742
> #35 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330678964}, vector={i = 4455517957}, maxdepth={i = 18}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfb530) at bytecode.c:629
> #36 0x0000000100201fe7 in funcall_lambda (fun={i = 4455518005}, nargs=1, arg_vector=0x7fff5fbfb528) at eval.c:2941
> #37 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfb520) at eval.c:2742
> #38 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330678836}, vector={i = 4455517813}, maxdepth={i = 22}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfb918) at bytecode.c:629
> #39 0x0000000100201fe7 in funcall_lambda (fun={i = 4455517861}, nargs=1, arg_vector=0x7fff5fbfb910) at eval.c:2941
> #40 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfb908) at eval.c:2742
> #41 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330662116}, vector={i = 4455466989}, maxdepth={i = 42}, args_template={i = 2058}, nargs=2, args=0x7fff5fbfbd38) at bytecode.c:629
> #42 0x0000000100201fe7 in funcall_lambda (fun={i = 4455467093}, nargs=2, arg_vector=0x7fff5fbfbd28) at eval.c:2941
> #43 0x0000000100201374 in Ffuncall (nargs=3, args=0x7fff5fbfbd20) at eval.c:2742
> #44 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330678804}, vector={i = 4455495149}, maxdepth={i = 18}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfc108) at bytecode.c:629
> #45 0x0000000100201fe7 in funcall_lambda (fun={i = 4455517909}, nargs=1, arg_vector=0x7fff5fbfc100) at eval.c:2941
> #46 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfc0f8) at eval.c:2742
> #47 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330676260}, vector={i = 4455508293}, maxdepth={i = 42}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfc580) at bytecode.c:629
> #48 0x0000000100201fe7 in funcall_lambda (fun={i = 4455508517}, nargs=1, arg_vector=0x7fff5fbfc578) at eval.c:2941
> #49 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfc570) at eval.c:2742
> #50 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330676164}, vector={i = 4455512637}, maxdepth={i = 70}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfcad8) at bytecode.c:629
> #51 0x0000000100201fe7 in funcall_lambda (fun={i = 4455508565}, nargs=1, arg_vector=0x7fff5fbfcad0) at eval.c:2941
> #52 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfcac8) at eval.c:2742
> #53 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330675236}, vector={i = 4455503421}, maxdepth={i = 66}, args_template={i = 2054}, nargs=1, args=0x7fff5fbfd0a0) at bytecode.c:629
> #54 0x0000000100201fe7 in funcall_lambda (fun={i = 4455504133}, nargs=1, arg_vector=0x7fff5fbfd098) at eval.c:2941
> #55 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfd090) at eval.c:2742
> #56 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330698708}, vector={i = 4455656013}, maxdepth={i = 34}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfd4f8) at bytecode.c:629
> #57 0x0000000100201fe7 in funcall_lambda (fun={i = 4455647189}, nargs=1, arg_vector=0x7fff5fbfd4f0) at eval.c:2941
> #58 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfd4e8) at eval.c:2742
> #59 0x000000010025ad5d in exec_byte_code (bytestr={i = 4330698612}, vector={i = 4455660765}, maxdepth={i = 42}, args_template={i = 1026}, nargs=0, args=0x7fff5fbfd9e8) at bytecode.c:629
> #60 0x0000000100201fe7 in funcall_lambda (fun={i = 4455647141}, nargs=0, arg_vector=0x7fff5fbfd9e8) at eval.c:2941
> #61 0x0000000100201374 in Ffuncall (nargs=1, args=0x7fff5fbfd9e0) at eval.c:2742
> #62 0x000000010025ad5d in exec_byte_code (bytestr={i = 4299934692}, vector={i = 4299934725}, maxdepth={i = 94}, args_template={i = 1030}, nargs=1, args=0x7fff5fbfe288) at bytecode.c:629
> #63 0x0000000100201fe7 in funcall_lambda (fun={i = 4299934645}, nargs=1, arg_vector=0x7fff5fbfe280) at eval.c:2941
> #64 0x0000000100201374 in Ffuncall (nargs=2, args=0x7fff5fbfe278) at eval.c:2742
> #65 0x000000010025ad5d in exec_byte_code (bytestr={i = 4299912628}, vector={i = 4299912661}, maxdepth={i = 86}, args_template={i = 2}, nargs=0, args=0x7fff5fbfedb8) at bytecode.c:629
> #66 0x0000000100201fe7 in funcall_lambda (fun={i = 4299912581}, nargs=0, arg_vector=0x7fff5fbfedb8) at eval.c:2941
> #67 0x0000000100201374 in Ffuncall (nargs=1, args=0x7fff5fbfedb0) at eval.c:2742
> #68 0x000000010025ad5d in exec_byte_code (bytestr={i = 4299908964}, vector={i = 4299908997}, maxdepth={i = 50}, args_template={i = 2}, nargs=0, args=0x7fff5fbff2f0) at bytecode.c:629
> #69 0x0000000100201fe7 in funcall_lambda (fun={i = 4299908917}, nargs=0, arg_vector=0x7fff5fbff2f0) at eval.c:2941
> #70 0x0000000100201c16 in apply_lambda (fun={i = 4299908917}, args={i = 0}, count=4) at eval.c:2877
> #71 0x00000001001ffc89 in eval_sub (form={i = 4379235827}) at eval.c:2261
> #72 0x00000001001fef96 in Feval (form={i = 4379235827}, lexical={i = 0}) at eval.c:2038
> #73 0x0000000100139c2c in top_level_2 () at keyboard.c:1123
> #74 0x00000001001fd0d8 in internal_condition_case (bfun=0x100139c08 <top_level_2>, handlers={i = 18528}, hfun=0x100139519 <cmd_error>) at eval.c:1319
> #75 0x0000000100139c78 in top_level_1 (ignore={i = 0}) at keyboard.c:1131
> #76 0x00000001001fc551 in internal_catch (tag={i = 46944}, func=0x100139c2e <top_level_1>, arg={i = 0}) at eval.c:1084
> #77 0x0000000100139b4d in command_loop () at keyboard.c:1092
> #78 0x0000000100138fb0 in recursive_edit_1 () at keyboard.c:699
> #79 0x00000001001391c7 in Frecursive_edit () at keyboard.c:770
> #80 0x0000000100136cdc in main (argc=9, argv=0x7fff5fbff8e8) at emacs.c:1706
>
> Lisp Backtrace:
> "decode-time" (0x5fbf9608)
> 0x3736288 PVEC_COMPILED
> 0x3736230 PVEC_COMPILED
> "byte-code" (0x5fbfa140)
> "defconst" (0x5fbfa3e0)
> "require" (0x5fbfacd0)
> "apply" (0x5fbfacc8)
> "byte-compile-file-form-require" (0x5fbfb130)
> "byte-compile-file-form" (0x5fbfb528)
> 0x991cea0 PVEC_COMPILED
> "byte-compile-recurse-toplevel" (0x5fbfbd28)
> "byte-compile-toplevel-file-form" (0x5fbfc100)
> 0x991aa20 PVEC_COMPILED
> "byte-compile-from-buffer" (0x5fbfcad0)
> "byte-compile-file" (0x5fbfd098)
> "batch-byte-compile-file" (0x5fbfd4f0)
> "batch-byte-compile" (0x5fbfd9e8)
> "command-line-1" (0x5fbfe280)
> "command-line" (0x5fbfedb8)
> "normal-top-level" (0x5fbff2f0)
> (gdb) select 5
> (gdb) frame 5
> #5  0x00007fff87007b0a in timesub ()
> (gdb) frame 10
> #10 0x00000001001e9746 in Fdecode_time (specified_time={i = 4351999171}, zone={i = 0}) at editfns.c:2163
> 2163	  struct tm *tm = emacs_localtime_rz (tz, &time_spec, &local_tm);
> (gdb) pp specified_time
> (-1034058203136 0)
> (gdb)