bug#34394: 27.0.50; Emacs segfaults with SLY, company and C-g

[João Távora]

Eli Zaretskii <eliz@gnu.org> writes:

> Btw, does this happen only on master, otr is it reproducible on
> emacs-26 as well?

Yep, also Emacs 26.1 and seems to be _way_ easier to trigger there.  I
get it on the first C-g!  A 26.1 backtrace after my sig.

By the way, this is important: I've removed the inhibit-quit hack I used
to have, so the lisp code is now simpler.  You will stil notice that
there is a strange "unwind-protect" there.  I don't think it should be
needed, but sometimes it's like the (while (sit-for)) exits non-locally
even without C-g and the (setq cancelled-on-input) never gets executed.

(catch catch-tag
       (sly-rex ()
           (sexp package)
         ((:ok value)
          (unless cancelled-on-input
            (throw catch-tag (list #'identity value))))
         ((:abort _condition)
          (throw catch-tag (list #'error "Synchronous Lisp Evaluation 
aborted"))))
       (cond (cancel-on-input
              (unwind-protect
                  (while (sit-for 30))
                (setq cancelled-on-input t))
              (funcall check-conn))
             (t
              (while t
                (funcall check-conn)
                (accept-process-output nil 30))))
       (list #'identity cancel-on-input-retval))

I will try with a Emacs 26.1 debug build, perhaps that won't smash the
stack.

João

gdb --args /usr/local/bin/emacs -Q -L ~/Source/Emacs/sly -l sly-autoloads -L 
~/Source/Emacs/company-mode -l ~/Source/Emacs/company-mode/company.el -f 
global-company-mode -f sly
GNU gdb (Debian 8.2-1) 8.2
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/local/bin/emacs...done.
(gdb) r
Starting program: /usr/local/bin/emacs -Q -L 
/home/capitaomorte/Source/Emacs/sly -l sly-autoloads -L 
/home/capitaomorte/Source/Emacs/company-mode -l 
/home/capitaomorte/Source/Emacs/company-mode/company.el -f global-company-mode 
-f sly
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffef46a700 (LWP 21053)]
[New Thread 0x7fffeec14700 (LWP 21054)]
[New Thread 0x7fffee413700 (LWP 21055)]
[Detaching after vfork from child process 21056]
*** longjmp causes uninitialized stack frame ***: /usr/local/bin/emacs 
terminated

Thread 1 "emacs" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50      ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff3db3535 in __GI_abort () at abort.c:79
#2  0x00007ffff3e0a718 in __libc_message (action=<optimized out>, 
fmt=fmt@entry=0x7ffff3f15088 "*** %s ***: %s terminated\n") at 
../sysdeps/posix/libc_fatal.c:181
#3  0x00007ffff3e9bbbd in __GI___fortify_fail_abort 
(need_backtrace=need_backtrace@entry=true, 
    msg=0x7ffff3f1503d <longjmp_msg> "longjmp causes uninitialized stack 
frame") at fortify_fail.c:28
#4  0x00007ffff3e9bbf1 in __GI___fortify_fail (msg=<optimized out>) at 
fortify_fail.c:44
#5  0x00007ffff3e9baad in ____longjmp_chk () at 
../sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S:105
#6  0x00007ffff3e9ba0b in __longjmp_chk (env=0xc09e98 <main_thread+216>, 
val=val@entry=1) at ../setjmp/longjmp.c:39
#7  0x00000000004ec067 in quit_throw_to_read_char 
(from_signal=from_signal@entry=false) at keyboard.c:10548
#8  0x00000000004eda11 in handle_interrupt (in_signal_handler=<optimized out>) 
at keyboard.c:10523
#9  0x00000000004f202d in kbd_buffer_store_event_hold (hold_quit=0x0, 
event=0x7fffffffc4d0) at keyboard.h:472
#10 kbd_buffer_store_event (event=0x7fffffffc4d0) at keyboard.c:3439
#11 gobble_input () at keyboard.c:6955
#12 0x00000000004f25d5 in handle_async_input () at keyboard.c:7146
#13 process_pending_signals () at keyboard.c:7160
#14 0x00000000005d9e49 in xg_select (fds_lim=<optimized out>, 
rfds=rfds@entry=0x7fffffffcce0, wfds=wfds@entry=0x7fffffffcd60, 
efds=efds@entry=0x0, 
    timeout=timeout@entry=0x7fffffffcbf0, sigmask=sigmask@entry=0x0) at 
xgselect.c:163
#15 0x000000000059ee2d in wait_reading_process_output 
(time_limit=time_limit@entry=30, nsecs=nsecs@entry=0, 
read_kbd=read_kbd@entry=-1, 
    do_display=do_display@entry=true, wait_for_cell=..., 
wait_for_cell@entry=..., wait_proc=wait_proc@entry=0x0, just_wait_proc=0) at 
process.c:5381
#16 0x0000000000420a10 in sit_for (timeout=..., reading=reading@entry=true, 
display_option=display_option@entry=1) at dispnew.c:5793
#17 0x00000000004f7364 in read_char (commandflag=commandflag@entry=1, map=..., 
map@entry=..., prev_event=..., 
used_mouse_menu=used_mouse_menu@entry=0x7fffffffd5cb, 
    end_time=end_time@entry=0x0) at keyboard.c:2717
#18 0x00000000004f80ac in read_key_sequence 
(keybuf=keybuf@entry=0x7fffffffd6d0, prompt=..., prompt@entry=..., 
dont_downcase_last=dont_downcase_last@entry=false, 
    can_return_switch_frame=can_return_switch_frame@entry=true, 
fix_current_buffer=fix_current_buffer@entry=true, 
prevent_redisplay=prevent_redisplay@entry=false, 
    bufsize=30) at keyboard.c:9147
#19 0x00000000004f9af6 in command_loop_1 () at keyboard.c:1368
#20 0x000000000055e10e in internal_condition_case (bfun=bfun@entry=0x4f98d0 
<command_loop_1>, handlers=..., handlers@entry=..., hfun=hfun@entry=0x4f0230 
<cmd_error>)
    at eval.c:1332
#21 0x00000000004eb5b4 in command_loop_2 (ignore=..., ignore@entry=...) at 
keyboard.c:1110
#22 0x000000000055e07d in internal_catch (tag=..., tag@entry=..., 
func=func@entry=0x4eb590 <command_loop_2>, arg=..., arg@entry=...) at 
eval.c:1097
#23 0x00000000004eb54b in command_loop () at keyboard.c:1089
#24 0x00000000004efe43 in recursive_edit_1 () at keyboard.c:695
#25 0x00000000004f0166 in Frecursive_edit () at keyboard.c:766
#26 0x0000000000416a9c in main (argc=<optimized out>, argv=0x7fffffffda58) at 
emacs.c:1713
(gdb) bt full
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {0, 0, 0, 0, 0, 140737289216860, 0, 140737289216860, 
46552288, 18446744073709551615, 0, 46552288, 140737488339368, 140737330954679, 
0, 
            46556584}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007ffff3db3535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x7fffffffc1b0, sa_sigaction 
= 0x7fffffffc1b0}, sa_mask = {__val = {140737331369509, 54273616, 46543248, 
              140737488339368, 140737289216860, 0, 140737289216860, 46552288, 
18446744073709551615, 0, 46552288, 140737488339784, 140737330954679, 0, 
140737488339488, 
              140737488339888}}, sa_flags = -15840, sa_restorer = 0x1000}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007ffff3e0a718 in __libc_message (action=<optimized out>, 
fmt=fmt@entry=0x7ffff3f15088 "*** %s ***: %s terminated\n") at 
../sysdeps/posix/libc_fatal.c:181
        ap = {{gp_offset = 32, fp_offset = 32767, overflow_arg_area = 
0x7fffffffc3c0, reg_save_area = 0x7fffffffc350}}
        fd = 16
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#3  0x00007ffff3e9bbbd in __GI___fortify_fail_abort 
(need_backtrace=need_backtrace@entry=true, 
    msg=0x7ffff3f1503d <longjmp_msg> "longjmp causes uninitialized stack 
frame") at fortify_fail.c:28
No locals.
#4  0x00007ffff3e9bbf1 in __GI___fortify_fail (msg=<optimized out>) at 
fortify_fail.c:44
No locals.
#5  0x00007ffff3e9baad in ____longjmp_chk () at 
../sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S:105
No locals.
#6  0x00007ffff3e9ba0b in __longjmp_chk (env=0xc09e98 <main_thread+216>, 
val=val@entry=1) at ../setjmp/longjmp.c:39
No locals.
#7  0x00000000004ec067 in quit_throw_to_read_char 
(from_signal=from_signal@entry=false) at keyboard.c:10548
No locals.
#8  0x00000000004eda11 in handle_interrupt (in_signal_handler=<optimized out>) 
at keyboard.c:10523
        c = <optimized out>
#9  0x00000000004f202d in kbd_buffer_store_event_hold (hold_quit=0x0, 
event=0x7fffffffc4d0) at keyboard.h:472
No locals.
#10 kbd_buffer_store_event (event=0x7fffffffc4d0) at keyboard.c:3439
No locals.
#11 gobble_input () at keyboard.c:6955
        nr = <optimized out>
        hold_quit = {kind = ASCII_KEYSTROKE_EVENT, part = scroll_bar_nowhere, 
code = 103, modifiers = 67108864, x = {i = 0}, y = {i = 0}, timestamp = 
234566431, 
          frame_or_window = {i = 20692101}, arg = {i = 0}}
        next = 0x0
        nread = 1
--Type <RET> for more, q to quit, c to continue without paging--c
        err = <optimized out>
        t = <optimized out>
#12 0x00000000004f25d5 in handle_async_input () at keyboard.c:7146
        nread = <optimized out>
#13 process_pending_signals () at keyboard.c:7160
No locals.
#14 0x00000000005d9e49 in xg_select (fds_lim=<optimized out>, 
rfds=rfds@entry=0x7fffffffcce0, wfds=wfds@entry=0x7fffffffcd60, 
efds=efds@entry=0x0, timeout=timeout@entry=0x7fffffffcbf0, 
sigmask=sigmask@entry=0x0) at xgselect.c:163
        pselect_errno = 11
        all_rfds = {fds_bits = {32, 0 <repeats 15 times>}}
        all_wfds = {fds_bits = {0 <repeats 16 times>}}
        tmo = {tv_sec = 10, tv_nsec = 140737488340024}
        tmop = <optimized out>
        context = 0x2c8bb00
        have_wfds = <optimized out>
        gfds_buf = {{fd = 6, events = 1, revents = 0}, {fd = 30048, events = 0, 
revents = 0}, {fd = 49296, events = 0, revents = 0}, {fd = 59531525, events = 
0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 6, events = 0, 
revents = 0}, {fd = -13856, events = 32767, revents = 0}, {fd = 6, events = 0, 
revents = 0}, {fd = -13856, events = 32767, revents = 0}, {fd = 6, events = 0, 
revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 5850777, events = 0, 
revents = 0}, {fd = -14288, events = 32767, revents = 0}, {fd = -199138468, 
events = 32767, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 
-199138468, events = 32767, revents = 0}, {fd = 46552288, events = 0, revents = 
0}, {fd = -1, events = 65535, revents = 65535}, {fd = 46552288, events = 0, 
revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 46552312, events = 0, 
revents = 0}, {fd = -157400649, events = 32767, revents = 0}, {fd = 64028770, 
events = 8906, revents = 52227}, {fd = 46556584, events = 0, revents = 0}, {fd 
= -1, events = 65535, revents = 65535}, {fd = 1141098441, events = 1, revents = 
0}, {fd = -1, events = 65535, revents = 65535}, {fd = 4096, events = 1, revents 
= 0}, {fd = 46552404, events = 0, revents = 0}, {fd = 4096, events = 0, revents 
= 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd 
= -14416, events = 32767, revents = 0}, {fd = 1, events = 0, revents = 0}, {fd 
= -14336, events = 32767, revents = 0}, {fd = 80, events = 0, revents = 0}, {fd 
= 0, events = 0, revents = 0}, {fd = 1221919700, events = 54788, revents = 
8776}, {fd = -1786630103, events = 55040, revents = 1496}, {fd = -2093397803, 
events = 144, revents = 56025}, {fd = 1221920518, events = 33314, revents = 
145}, {fd = -1306328101, events = 34817, revents = 34049}, {fd = 218235047, 
events = 34110, revents = 167}, {fd = -892303102, events = 45641, revents = 
46593}, {fd = 8857986, events = 0, revents = 0}, {fd = 51868912, events = 0, 
revents = 0}, {fd = 48, events = 0, revents = 0}, {fd = 612678144, events = 
6336, revents = 38703}, {fd = 48, events = 0, revents = 0}, {fd = 612678144, 
events = 6336, revents = 38703}, {fd = 0, events = 0, revents = 0}, {fd = 
46552288, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 
46552312, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 
-13956, events = 32767, revents = 0}, {fd = -13696, events = 32767, revents = 
0}, {fd = -157398747, events = 32767, revents = 0}, {fd = 46550768, events = 0, 
revents = 0}, {fd = 46543248, events = 0, revents = 0}, {fd = 46550768, events 
= 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = -14080, events = 
32767, revents = 0}, {fd = -156985874, events = 32767, revents = 0}, {fd = 
46543248, events = 0, revents = 0}, {fd = 46543248, events = 0, revents = 0}, 
{fd = -14088, events = 32767, revents = 0}, {fd = -156985504, events = 32767, 
revents = 0}, {fd = -1, events = 65535, revents = 8191}, {fd = 0, events = 0, 
revents = 0}, {fd = -13872, events = 32767, revents = 0}, {fd = 612678144, 
events = 6336, revents = 38703}, {fd = 0, events = 0, revents = 0}, {fd = 1, 
events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 5527825, 
events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = -13792, 
events = 32767, revents = 0}, {fd = -1, events = 65535, revents = 8191}, {fd = 
3, events = 0, revents = 0}, {fd = -13792, events = 32767, revents = 0}, {fd = 
5660967, events = 0, revents = 0}, {fd = -13952, events = 32767, revents = 0}, 
{fd = 50263384, events = 0, revents = 0}, {fd = 50263544, events = 0, revents = 
0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 
0, events = 0, revents = 0}, {fd = -13872, events = 32767, revents = 0}, {fd = 
0, events = 0, revents = 0}, {fd = 37, events = 0, revents = 0}, {fd = 
60345027, events = 0, revents = 0}, {fd = -13824, events = 32767, revents = 0}, 
{fd = -134398938, events = 32767, revents = 0}, {fd = -13632, events = 32767, 
revents = 0}, {fd = -13768, events = 1, revents = 0}, {fd = 1, events = 0, 
revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = -13792, events = 32767, 
revents = 0}, {fd = 60344963, events = 0, revents = 0}, {fd = 51088672, events 
= 0, revents = 0}, {fd = 60344963, events = 0, revents = 0}, {fd = -13632, 
events = 32767, revents = 0}, {fd = 5167845, events = 0, revents = 0}, {fd = 0, 
events = 0, revents = 0}, {fd = 0, events = 41248, revents = 7}, {fd = 0, 
events = 0, revents = 0}, {fd = 5167820, events = 0, revents = 0}, {fd = 0, 
events = 0, revents = 0}, {fd = 0, events = 41248, revents = 7}, {fd = 0, 
events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 12123816, 
events = 0, revents = 0}, {fd = 5181078, events = 0, revents = 0}, {fd = 0, 
events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 60344915, 
events = 0, revents = 0}, {fd = -13632, events = 32767, revents = 0}, {fd = 
60344912, events = 0, revents = 0}, {fd = 52451429, events = 0, revents = 0}, 
{fd = 146025568, events = 0, revents = 0}, {fd = 1549711958, events = 0, 
revents = 0}, {fd = 419252587, events = 0, revents = 0}, {fd = -13648, events = 
32767, revents = 0}, {fd = 1549711962, events = 0, revents = 0}, {fd = 
656260140, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 
500000000, events = 0, revents = 0}}
        gfds = <optimized out>
        gfds_size = <optimized out>
        n_gfds = <optimized out>
        retval = <optimized out>
        our_fds = <optimized out>
        max_fds = <optimized out>
        context_acquired = true
        i = <optimized out>
        nfds = 1
        tmo_in_millisec = -1
        must_free = <optimized out>
        need_to_dispatch = true
#15 0x000000000059ee2d in wait_reading_process_output 
(time_limit=time_limit@entry=30, nsecs=nsecs@entry=0, 
read_kbd=read_kbd@entry=-1, do_display=do_display@entry=true, 
wait_for_cell=..., wait_for_cell@entry=..., wait_proc=wait_proc@entry=0x0, 
just_wait_proc=0) at process.c:5381
        process_skipped = <optimized out>
        channel = <optimized out>
        nfds = <optimized out>
        Available = {fds_bits = {32, 0 <repeats 15 times>}}
        Writeok = {fds_bits = {0 <repeats 16 times>}}
        check_write = true
        check_delay = 1
        no_avail = false
        xerrno = 11
        proc = <optimized out>
        timeout = {tv_sec = 0, tv_nsec = 0}
        end_time = {tv_sec = 1549711988, tv_nsec = 273248462}
        timer_delay = <optimized out>
        got_output_end_time = {tv_sec = 1549711988, tv_nsec = 273248462}
        wait = TIMEOUT
        got_some_output = -1
        retry_for_async = <optimized out>
        count = <optimized out>
        now = <optimized out>
#16 0x0000000000420a10 in sit_for (timeout=..., reading=reading@entry=true, 
display_option=display_option@entry=1) at dispnew.c:5793
        sec = 30
        nsec = 0
        do_display = true
#17 0x00000000004f7364 in read_char (commandflag=commandflag@entry=1, map=..., 
map@entry=..., prev_event=..., 
used_mouse_menu=used_mouse_menu@entry=0x7fffffffd5cb, 
end_time=end_time@entry=0x0) at keyboard.c:2717
        tem0 = <optimized out>
        timeout = <optimized out>
        delay_level = <optimized out>
        buffer_size = <optimized out>
        c = <optimized out>
        jmpcount = 3
        local_getcjmp = {{__jmpbuf = {12467136, 142997390669071825, 12037472, 
59531520, 140737488344776, 0, -142992387451304495, 142991828090045905}, 
__mask_was_saved = 0, __saved_mask = {__val = {1, 639, 140737488343744, 
46790521, 5640065, 140737488343920, 53427059, 140737488344032, 53143552, 
140737488344016, 53126771, 40178224, 53129219, 53143552, 5639024, 50263384}}}}
        save_jump = {{__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0}, __mask_was_saved = 
0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
        tem = {i = 140737488344776}
        save = <optimized out>
        previous_echo_area_message = {i = 0}
        also_record = {i = 0}
        reread = false
        recorded = false
        polling_stopped_here = false
        orig_kboard = 0x2c7bc40
#18 0x00000000004f80ac in read_key_sequence 
(keybuf=keybuf@entry=0x7fffffffd6d0, prompt=..., prompt@entry=..., 
dont_downcase_last=dont_downcase_last@entry=false, 
can_return_switch_frame=can_return_switch_frame@entry=true, 
fix_current_buffer=fix_current_buffer@entry=true, 
prevent_redisplay=prevent_redisplay@entry=false, bufsize=30) at keyboard.c:9147
        interrupted_kboard = 0x2c7bc40
        interrupted_frame = 0x13bbc80 <bss_sbrk_buffer+8068256>
        key = <optimized out>
        used_mouse_menu = false
        echo_local_start = 0
        last_real_key_start = 0
        keys_local_start = 0
        new_binding = <optimized out>
        count = <optimized out>
        t = 0
        echo_start = 0
        keys_start = 0
        current_binding = {i = 60152867}
        first_event = {i = 0}
        first_unbound = 31
        mock_input = 0
        fkey = {parent = {i = 17252003}, map = {i = 17252003}, start = 0, end = 
0}
        keytran = {parent = {i = 13068947}, map = {i = 13068947}, start = 0, 
end = 0}
        indec = {parent = {i = 17252019}, map = {i = 17252019}, start = 0, end 
= 0}
        shift_translated = false
        delayed_switch_frame = {i = 0}
        original_uppercase = {i = 0}
        original_uppercase_position = -1
        dummyflag = false
        starting_buffer = <optimized out>
        fake_prefixed_keys = {i = 0}
#19 0x00000000004f9af6 in command_loop_1 () at keyboard.c:1368
        cmd = {i = 120}
        keybuf = {{i = 53376}, {i = 140737488344736}, {i = 280}, {i = 
10427248}, {i = 9873088}, {i = 12477088}, {i = -255}, {i = 4}, {i = 
140737488345040}, {i = 5639591}, {i = -816}, {i = 4}, {i = 223338299410}, {i = 
0}, {i = 0}, {i = 511101108315}, {i = 0}, {i = 0}, {i = 0}, {i = 120}, {i = 
140737488344992}, {i = 0}, {i = 13375491}, {i = -1}, {i = 0}, {i = 5630425}, {i 
= 5}, {i = 31200}, {i = 0}, {i = 13079557}}
        i = <optimized out>
        prev_modiff = 36
        prev_buffer = 0x38c6100
#20 0x000000000055e10e in internal_condition_case (bfun=bfun@entry=0x4f98d0 
<command_loop_1>, handlers=..., handlers@entry=..., hfun=hfun@entry=0x4f0230 
<cmd_error>) at eval.c:1332
        val = {i = 0}
        c = 0x2c5d8f0
#21 0x00000000004eb5b4 in command_loop_2 (ignore=..., ignore@entry=...) at 
keyboard.c:1110
        val = <optimized out>
#22 0x000000000055e07d in internal_catch (tag=..., tag@entry=..., 
func=func@entry=0x4eb590 <command_loop_2>, arg=..., arg@entry=...) at 
eval.c:1097
        val = {i = 0}
        c = 0x2c5d7d0
#23 0x00000000004eb54b in command_loop () at keyboard.c:1089
No locals.
#24 0x00000000004efe43 in recursive_edit_1 () at keyboard.c:695
        count = <optimized out>
        val = <optimized out>
#25 0x00000000004f0166 in Frecursive_edit () at keyboard.c:766
        count = <optimized out>
        buffer = <optimized out>
#26 0x0000000000416a9c in main (argc=<optimized out>, argv=0x7fffffffda58) at 
emacs.c:1713
        stack_bottom_variable = 0xd49656e69
        do_initial_setlocale = <optimized out>
        dumping = <optimized out>
        skip_args = 0
        no_loadup = false
        junk = 0x0
        dname_arg = 0x0
        ch_to_dir = 0x0
        original_pwd = <optimized out>
        disable_aslr = <optimized out>
        rlim = {rlim_cur = 10022912, rlim_max = 18446744073709551615}
        sockfd = -1
(gdb)