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bug#11081: 24.0.94; "emacsclient --create-frame" occasionally crashes da


From: Brad Town
Subject: bug#11081: 24.0.94; "emacsclient --create-frame" occasionally crashes daemon or causes daemon to hang
Date: Thu, 29 Mar 2012 09:27:54 -0700

When I was using GDB, I only saw the hang, and that's what I attempted
to capture. If you have a quick suggestion as to how I might be able
to get better information for you, let me know.

Another interesting item: The problem goes away when I rebuild with
the GTK toolkit. Unfortunately, I use Emacs as a daemon, and the Lucid
toolkit is recommended for that setup.

Brad

On Sat, Mar 24, 2012 at 5:01 AM, Jan Djärv <address@hidden> wrote:
> Hello.
>
> You don't show the reason for the crash (segmentation violation, or something 
> like that).
> Can you do that?
>
>        Jan D.
>
> 24 mar 2012 kl. 00:19 skrev Brad Town:
>
>> This bug report will be sent to the Bug-GNU-Emacs mailing list
>> and the GNU bug tracker at debbugs.gnu.org.  Please check that
>> the From: line contains a valid email address.  After a delay of up
>> to one day, you should receive an acknowledgement at that address.
>>
>> Please write in English if possible, as the Emacs maintainers
>> usually do not have translators for other languages.
>>
>> Please describe exactly what actions triggered the bug, and
>> the precise symptoms of the bug.  If you can, give a recipe
>> starting from `emacs -Q':
>>
>> --- recipe ---
>> * Run /usr/local/bin/emacs -Q --daemon
>> * Repeat the following until hang or crash:
>> ** Run /usr/local/bin/emacsclient --create-frame
>> ** When the frame appears, C-x C-c to exit
>>
>> gdb `bt full' output:
>>
>> --- cut here ---
>> #0  0x00007fe6caa6b583 in __select_nocancel () at
>> ../sysdeps/unix/syscall-template.S:82
>> No locals.
>> #1  0x00000000004ec561 in xg_select (max_fds=4, rfds=0x7fff3103bb40,
>> wfds=0x7fff3103bac0, efds=0x0, timeout=<optimized out>) at
>> xgselect.c:100
>>        all_rfds = {
>>          fds_bits = {8, 0 <repeats 15 times>}
>>        }
>>        all_wfds = {
>>          fds_bits = {0 <repeats 16 times>}
>>        }
>>        tmo = {
>>          tv_sec = 1332543996,
>>          tv_usec = 800572
>>        }
>>        tmop = 0x7fff3103bc30
>>        context = 0xe97a40
>>        have_wfds = 1
>>        n_gfds = <optimized out>
>>        our_tmo = 0
>>        retval = <optimized out>
>>        our_fds = <optimized out>
>>        i = <optimized out>
>>        nfds = <optimized out>
>>        tmo_in_millisec = -1
>> #2  0x00000000005b0e44 in wait_reading_process_output
>> (time_limit=<optimized out>, microsecs=<optimized out>, read_kbd=-1,
>> do_display=<optimized out>,
>>    wait_for_cell=<optimized out>, wait_proc=0x0, just_wait_proc=0) at
>> process.c:4608
>>        timeout_reduced_for_timers = 0
>>        channel = -514
>>        nfds = <optimized out>
>>        Available = {
>>          fds_bits = {8, 0 <repeats 15 times>}
>>        }
>>        Writeok = {
>>          fds_bits = {0 <repeats 16 times>}
>>        }
>>        check_write = 1
>>        check_delay = 0
>>        no_avail = 1
>>        xerrno = 2
>>        proc = <optimized out>
>>        timeout = {
>>          tv_sec = 99928,
>>          tv_usec = 160649
>>        }
>>        end_time = {
>>          tv_sec = 0,
>>          tv_usec = 0
>>        }
>>        wait_channel = -1
>>        got_some_input = 0
>> #3  0x000000000050735d in kbd_buffer_get_event (end_time=<optimized
>> out>, used_mouse_menu=<optimized out>, kbp=<optimized out>) at
>> keyboard.c:3853
>>        c = <optimized out>
>>        obj = <optimized out>
>> #4  read_char (commandflag=<optimized out>, nmaps=<optimized out>,
>> maps=<optimized out>, prev_event=<optimized out>,
>> used_mouse_menu=<optimized out>, end_time=0x0)
>>    at keyboard.c:2799
>>        kb = <optimized out>
>>        c = 11995778
>>        local_getcjmp = {{
>>            __jmpbuf = {11995778, 7083285557197970914, 1, 1, 12085424,
>> 140734015717488, -7083456576088662558, 7083286322900934114},
>>            __mask_was_saved = 0,
>>            __saved_mask = {
>>              __val = {0, 1, 0, 11065426, 9585369, 11065416, 9893797,
>> 0, 3120373890685015296, 111, 9893744, 9893749, 9893744, 0, 2,
>> 11995778}
>>            }
>>          }}
>>        save_jump = {{
>>            __jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0},
>>            __mask_was_saved = 0,
>>            __saved_mask = {
>>              __val = {0 <repeats 16 times>}
>>            }
>>          }}
>>        key_already_recorded = 0
>>        tem = <optimized out>
>>        save = <optimized out>
>>        previous_echo_area_message = 11995778
>>        also_record = 11995778
>>        reread = 0
>>        polling_stopped_here = 1
>>        orig_kboard = 0xb7d720
>> #5  0x0000000000509438 in read_key_sequence (keybuf=<optimized out>,
>> bufsize=<optimized out>, prompt=<optimized out>,
>> dont_downcase_last=<optimized out>,
>>    can_return_switch_frame=<optimized out>,
>> fix_current_buffer=<optimized out>) at keyboard.c:9326
>>        interrupted_kboard = 0xb7d720
>>        key = 1
>>        used_mouse_menu = 0
>>        echo_local_start = 0
>>        last_real_key_start = 32767
>>        keys_local_start = 0
>>        from_string = <optimized out>
>>        count = 2
>>        t = <optimized out>
>>        echo_start = <optimized out>
>>        keys_start = 0
>>        nmaps = <optimized out>
>>        nmaps_allocated = 2
>>        defs = 0x7fff3103c050
>>        submaps = <optimized out>
>>        orig_local_map = 17529222
>>        orig_keymap = 11995778
>>        localized_local_map = 0
>>        first_binding = <optimized out>
>>        first_unbound = <optimized out>
>>        mock_input = <optimized out>
>>        fkey = {
>>          parent = 12419798,
>>          map = 12419798,
>>          start = 0,
>>          end = 0
>>        }
>>        keytran = {
>>          parent = 11975078,
>>          map = 11975078,
>>          start = 0,
>>          end = 0
>>        }
>>        indec = {
>>          parent = 12419814,
>>          map = 12419814,
>>          start = 0,
>>          end = 0
>>        }
>>        shift_translated = 0
>>        delayed_switch_frame = 11995778
>>        original_uppercase = 11995778
>>        original_uppercase_position = -1
>>        starting_buffer = 0xb77790
>>        fake_prefixed_keys = 11995778
>> #6  0x000000000050b76b in command_loop_1 () at keyboard.c:1448
>>        cmd = 0
>>        keybuf = {140629218229288, 9192392, 4611686018427404288,
>> 4611686018427389952, 0, 1, 140734015718320, 5712078, 140629320511784,
>> 0, 140629320254704,
>>          140629320307912, 4233728, 140629218281056, 140629320511784,
>> 0, 140629320254704, 140629320307912, 4232831, 140629218281056,
>> 4214280, 4294967296, 0, 11995778, 64,
>>          12241542, 140734015719856, 4611686018427518976, 11995778, 5640642}
>>        i = 822331824
>>        prev_modiff = 0
>>        prev_buffer = 0x0
>> #7  0x00000000005740c1 in internal_condition_case (bfun=<optimized
>> out>, handlers=<optimized out>, hfun=<optimized out>) at eval.c:1515
>>        val = -514
>>        c = {
>>          tag = 11995778,
>>          val = 11995778,
>>          next = 0x7fff3103c570,
>>          gcpro = 0x0,
>>          jmp = {{
>>              __jmpbuf = {12712224, 7083285089474616802, 11995778,
>> 140734015719856, 0, 1, -7083456572643041822, 7083286383632227810},
>>              __mask_was_saved = 0,
>>              __saved_mask = {
>>                __val = {140629320307912, 140734015718528, 4294967295,
>> 140734015718568, 1, 8606112, 0, 0, 1, 0, 140629318338513, 1, 0, 0,
>> 140629218252208, 0}
>>              }
>>            }},
>>          backlist = 0x0,
>>          handlerlist = 0x0,
>>          lisp_eval_depth = 0,
>>          pdlcount = 2,
>>          poll_suppress_count = 1,
>>          interrupt_input_blocked = 0,
>>          byte_stack = 0x0
>>        }
>>        h = {
>>          handler = 12047842,
>>          var = 11995778,
>>          chosen_clause = 11995778,
>>          tag = 0x7fff3103c400,
>>          next = 0x0
>>        }
>> #8  0x0000000000502f2e in command_loop_2 (ignore=<optimized out>) at
>> keyboard.c:1159
>>        val = -514
>> #9  0x00000000005741e8 in internal_catch (tag=<optimized out>,
>> func=<optimized out>, arg=<optimized out>) at eval.c:1272
>>        c = {
>>          tag = 12043634,
>>          val = 11995778,
>>          next = 0x0,
>>          gcpro = 0x0,
>>          jmp = {{
>>              __jmpbuf = {12712224, 7083285089474616802, 11995778,
>> 140734015719856, 0, 1, -7083456572592710174, 7083286383603523042},
>>              __mask_was_saved = 0,
>>              __saved_mask = {
>>                __val = {0, 0, 0, 0, 624, 272, 22, 0, 0, 0,
>> 140629221879360, 140734015720184, 344, 12221746, 5710197,
>> 140734015719080}
>>              }
>>            }},
>>          backlist = 0x0,
>>          handlerlist = 0x0,
>>          lisp_eval_depth = 0,
>>          pdlcount = 2,
>>          poll_suppress_count = 1,
>>          interrupt_input_blocked = 0,
>>          byte_stack = 0x0
>>        }
>> #10 0x00000000005035fa in command_loop () at keyboard.c:1138
>> No locals.
>> #11 recursive_edit_1 () at keyboard.c:758
>>        val = <optimized out>
>> #12 0x000000000050370c in Frecursive_edit () at keyboard.c:822
>>        buffer = 11995778
>> #13 0x00000000004f7a40 in main (argc=0, argv=0x7fff3103caf8) at emacs.c:1715
>>        dummy = 140629320309128
>>        stack_bottom_variable = 0 '\000'
>>        do_initial_setlocale = <optimized out>
>>        skip_args = 1
>>        rlim = {
>>          rlim_cur = 8720000,
>>          rlim_max = 18446744073709551615
>>        }
>>        no_loadup = 0
>>        junk = 0x0
>>        dname_arg = 0x0
>>        ch_to_dir = 0x7fff3103ca18 "M\254\232\312\346\177"
>> --- cut here ---
>>
>> `xbacktrace' gives no output.
>>
>> --- recipe ---
>>
>> If Emacs crashed, and you have the Emacs process in the gdb debugger,
>> please include the output from the following gdb commands:
>>    `bt full' and `xbacktrace'.
>> For information about debugging Emacs, please read the file
>> /usr/local/share/emacs/24.0.94/etc/DEBUG.
>>
>>
>> In GNU Emacs 24.0.94.2 (x86_64-unknown-linux-gnu, X toolkit, Xaw3d scroll 
>> bars)
>> of 2012-03-23 on torgo.mtv.corp.google.com
>> Windowing system distributor `The X.Org Foundation', version 11.0.10706000
>> Configured using:
>> `configure '--with-x-toolkit=lucid''
>>
>> Important settings:
>>  value of $LC_ALL: nil
>>  value of $LC_COLLATE: en_US.UTF-8
>>  value of $LC_CTYPE: nil
>>  value of $LC_MESSAGES: nil
>>  value of $LC_MONETARY: en_US.UTF-8
>>  value of $LC_NUMERIC: en_US.UTF-8
>>  value of $LC_TIME: en_US.UTF-8
>>  value of $LANG: en_US.UTF-8
>>  value of $XMODIFIERS: nil
>>  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
>>  auto-composition-mode: t
>>  auto-encryption-mode: t
>>  auto-compression-mode: t
>>  line-number-mode: t
>>  transient-mark-mode: t
>>
>> Recent input:
>> C-x C-c M-x r e p o r t - <tab> <return>
>>
>> Recent messages:
>> ("/usr/local/bin/emacs")
>> Starting Emacs daemon.
>> When done with this frame, type C-x 5 0
>> (No files need saving)
>> When done with this frame, type C-x 5 0
>>
>> Load-path shadows:
>> None found.
>>
>> Features:
>> (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
>> easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
>> mailabbrev gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045
>> ietf-drums mm-util mail-prsvr mail-utils server time-date tooltip
>> ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd
>> fontset image fringe 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
>> dbusbind dynamic-setting system-font-setting font-render-setting
>> x-toolkit x multi-tty emacs)
>>
>>
>





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