bug#22394: New segfault

bug#22394: New segfault

[Clément Pit--Claudel]

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Hi folks,

Here's a new segfault:

Program received signal SIGABRT, Aborted.
0x00007ffff130920b in raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
37	../nptl/sysdeps/unix/sysv/linux/pt-raise.c: No such file or directory.
(gdb) backtrace
#0  0x00007ffff130920b in raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
#1  0x00000000004eafc1 in terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=40) at emacs.c:398
#2  0x00000000005034e3 in emacs_abort () at sysdep.c:2217
#3  0x00000000004a6e2f in bidi_cache_iterator_state (bidi_it=bidi_it@entry=0x7fffffff5550, resolved=resolved@entry=true, update_only=update_only@entry=false) at bidi.c:802
#4  0x00000000004a8f11 in bidi_move_to_visually_next (bidi_it=bidi_it@entry=0x7fffffff8ef8) at bidi.c:3385
#5  0x0000000000443280 in set_iterator_to_next (it=it@entry=0x7fffffff8560, reseat_p=reseat_p@entry=true) at xdisp.c:7362
#6  0x000000000044bb51 in display_line (it=it@entry=0x7fffffff8560) at xdisp.c:20878
#7  0x000000000044e1f2 in try_window (window=window@entry=18838741, pos=..., flags=flags@entry=1) at xdisp.c:17102
#8  0x0000000000462a36 in redisplay_window (window=<optimized out>, just_this_one_p=just_this_one_p@entry=false) at xdisp.c:16567
#9  0x0000000000465b2b in redisplay_window_0 (window=window@entry=18838741) at xdisp.c:14359
#10 0x000000000055a949 in internal_condition_case_1 (bfun=bfun@entry=0x465b00 <redisplay_window_0>, arg=18838741, handlers=<optimized out>, 
    hfun=hfun@entry=0x42c850 <redisplay_window_error>) at eval.c:1333
#11 0x000000000043154e in redisplay_windows (window=18838741) at xdisp.c:14339
#12 0x0000000000453379 in redisplay_internal () at xdisp.c:13899
#13 0x0000000000454ee5 in redisplay () at xdisp.c:13132
#14 0x00000000004f4bfb in read_char (commandflag=commandflag@entry=1, map=map@entry=56857459, prev_event=0, used_mouse_menu=used_mouse_menu@entry=0x7fffffffd8fb, 
    end_time=end_time@entry=0x0) at keyboard.c:2466
#15 0x00000000004f743f in read_key_sequence (keybuf=keybuf@entry=0x7fffffffd9d0, prompt=prompt@entry=0, 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:9032
#16 0x00000000004f8ef6 in command_loop_1 () at keyboard.c:1347
#17 0x000000000055a8cd in internal_condition_case (bfun=bfun@entry=0x4f8d00 <command_loop_1>, handlers=handlers@entry=19008, hfun=hfun@entry=0x4efcd0 <cmd_error>) at eval.c:1309
#18 0x00000000004eb4cc in command_loop_2 (ignore=ignore@entry=0) at keyboard.c:1089
---Type <return> to continue, or q <return> to quit---
#19 0x000000000055a87b in internal_catch (tag=tag@entry=45792, func=func@entry=0x4eb4b0 <command_loop_2>, arg=arg@entry=0) at eval.c:1074
#20 0x00000000004eb487 in command_loop () at keyboard.c:1068
#21 0x00000000004ef908 in recursive_edit_1 () at keyboard.c:674
#22 0x00000000004efc25 in Frecursive_edit () at keyboard.c:745
#23 0x0000000000418978 in main (argc=1, argv=0x7fffffffdd48) at emacs.c:1656
(gdb) 

Can I provide more info?

Clément.


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bug#22394: Acknowledgement (New segfault)

[Clément Pit--Claudel]

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This apparently happens when calling (narrow-to-region (point) (point)), but only sometimes?

On 01/17/2016 03:24 PM, GNU bug Tracking System wrote:
> Thank you for filing a new bug report with debbugs.gnu.org.
> 
> This is an automatically generated reply to let you know your message
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> 
> Your message is being forwarded to the package maintainers and other
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> 
> Your message has been sent to the package maintainer(s):
>  bug-gnu-emacs@gnu.org
> 
> If you wish to submit further information on this problem, please
> send it to 22394@debbugs.gnu.org.
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bug#22394: New segfault

[Eli Zaretskii]

> From: Clément Pit--Claudel <clement.pit@gmail.com>
> Date: Sun, 17 Jan 2016 15:23:00 -0500
> 
> Here's a new segfault:
> 
> Program received signal SIGABRT, Aborted.
> 0x00007ffff130920b in raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
> 37	../nptl/sysdeps/unix/sysv/linux/pt-raise.c: No such file or directory.
> (gdb) backtrace
> #0  0x00007ffff130920b in raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
> #1  0x00000000004eafc1 in terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=40) at emacs.c:398
> #2  0x00000000005034e3 in emacs_abort () at sysdep.c:2217
> #3  0x00000000004a6e2f in bidi_cache_iterator_state (bidi_it=bidi_it@entry=0x7fffffff5550, resolved=resolved@entry=true, update_only=update_only@entry=false) at bidi.c:802
> #4  0x00000000004a8f11 in bidi_move_to_visually_next (bidi_it=bidi_it@entry=0x7fffffff8ef8) at bidi.c:3385
> #5  0x0000000000443280 in set_iterator_to_next (it=it@entry=0x7fffffff8560, reseat_p=reseat_p@entry=true) at xdisp.c:7362
> #6  0x000000000044bb51 in display_line (it=it@entry=0x7fffffff8560) at xdisp.c:20878
> #7  0x000000000044e1f2 in try_window (window=window@entry=18838741, pos=..., flags=flags@entry=1) at xdisp.c:17102
> #8  0x0000000000462a36 in redisplay_window (window=<optimized out>, just_this_one_p=just_this_one_p@entry=false) at xdisp.c:16567
> #9  0x0000000000465b2b in redisplay_window_0 (window=window@entry=18838741) at xdisp.c:14359
> #10 0x000000000055a949 in internal_condition_case_1 (bfun=bfun@entry=0x465b00 <redisplay_window_0>, arg=18838741, handlers=<optimized out>, 
>     hfun=hfun@entry=0x42c850 <redisplay_window_error>) at eval.c:1333
> #11 0x000000000043154e in redisplay_windows (window=18838741) at xdisp.c:14339
> #12 0x0000000000453379 in redisplay_internal () at xdisp.c:13899
> #13 0x0000000000454ee5 in redisplay () at xdisp.c:13132
> #14 0x00000000004f4bfb in read_char (commandflag=commandflag@entry=1, map=map@entry=56857459, prev_event=0, used_mouse_menu=used_mouse_menu@entry=0x7fffffffd8fb, 
>     end_time=end_time@entry=0x0) at keyboard.c:2466

Is this reproducible?  If so, please describe how to reproduce.

Thanks.

bug#22394: New segfault

[Glenn Morris]

Eli Zaretskii wrote:

> Is this reproducible?  If so, please describe how to reproduce.

Since the best part of a year has passed with no further information,
I'm closing this. Please reopen if you can provide the requested info.