crash when returning to panels by pressing Ctrl-O

[Yury V. Zaytsev]

Better still would be to create a linked issue in the upstream tracker, 
because problems reported on the list tend to get lost...

On Sun, 14 Oct 2018, Nerijus Baliunas via mc-devel wrote:

> Hello,
>
> I posted https://bugzilla.redhat.com/show_bug.cgi?id=1639016 but duplicate it here too.
> I get lots of crashes when returning to mc panels from terminal by pressing Ctrl-O.
> # coredumpctl debug
>           PID: 10643 (mc)
>           UID: 0 (root)
>           GID: 0 (root)
>        Signal: 11 (SEGV)
>     Timestamp: Sun 2018-10-14 12:54:41 EEST (10min ago)
>  Command Line: /usr/bin/mc -P /var/tmp/mc-root/mc.pwd.10566
>    Executable: /usr/bin/mc
> ...
> Core was generated by `/usr/bin/mc -P /var/tmp/mc-root/mc.pwd.10566'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x000055e1c86ac045 in display_mini_info (panel=0x55e1ca8856f0) at panel.c:1006
> 1006	    if (S_ISLNK (panel->dir.list[panel->selected].st.st_mode))
> Missing separate debuginfos, use: dnf debuginfo-install glib2-2.58.1-1.fc29.x86_64 glibc-2.28-9.fc29.x86_64 gpm-libs-1.20.7-16.fc29.x86_64 libssh2-1.8.0-8.fc29.x86_64 openssl-libs-1.1.1-3.fc29.x86_64 pcre-8.42-4.fc29.x86_64 zlib-1.2.11-14.fc29.x86_64
> (gdb) bt
> #0  0x000055e1c86ac045 in display_mini_info (panel=0x55e1ca8856f0) at panel.c:1006
> #1  0x000055e1c86b0fdb in panel_callback (w=0x55e1ca8856f0, sender=<optimized out>, msg=<optimized out>,
>    parm=<optimized out>, data=<optimized out>) at panel.c:3673
> #2  0x000055e1c86a4404 in setup_panels () at layout.c:756
> #3  0x000055e1c86a8e2d in midnight_callback (w=<optimized out>, sender=<optimized out>, msg=<optimized out>,
>    parm=0, data=<optimized out>) at midnight.c:1470
> #4  0x000055e1c868f4c2 in send_message (data=0x0, parm=0, msg=MSG_RESIZE, sender=0x0, w=<optimized out>)
>    at ../../lib/widget/widget-common.h:210
> #5  dialog_switch_resize (d=<optimized out>) at dialog-switch.c:120
> #6  dialog_change_screen_size () at dialog-switch.c:374
> #7  0x000055e1c868f51d in mc_refresh () at dialog-switch.c:349
> #8  0x000055e1c8710faf in dir_list_reload (list=list at entry=0x55e1ca885738, vpath=0x55e1ca892e50,
>    sort=0x55e1c870fc30 <sort_name>, sort_op=sort_op at entry=0x55e1ca8857a8, fltr=0x0) at dir.c:800
> #9  0x000055e1c86ae366 in panel_reload (panel=panel at entry=0x55e1ca8856f0) at panel.c:4424
> #10 0x000055e1c86ae578 in update_one_panel_widget (panel=0x55e1ca8856f0, flags=<optimized out>,
>    current_file=0x55e1ca979d10 "libicui18n.so.62.1") at panel.c:4028
> #11 0x000055e1c86aeb69 in update_one_panel (
>    current_file=0xffffffffffffffff <error: Cannot access memory at address 0xffffffffffffffff>,
>    flags=UP_OPTIMIZE, which=0) at panel.c:4049
> #12 update_panels (flags=flags at entry=UP_OPTIMIZE,
>    current_file=current_file at entry=0xffffffffffffffff <error: Cannot access memory at address 0xffffffffffffffff>) at panel.c:4819
> #13 0x000055e1c86866de in toggle_panels () at execute.c:554
> #14 0x000055e1c870e73d in view_other_cmd () at cmd.c:1216
> #15 0x000055e1c86a8975 in midnight_execute_cmd (sender=0x0, command=45) at midnight.c:1330
> #16 0x000055e1c86a8f72 in midnight_callback (w=<optimized out>, sender=<optimized out>, msg=<optimized out>,
>    parm=16399, data=<optimized out>) at midnight.c:1565
> #17 0x000055e1c86906e1 in send_message (data=0x0, parm=16399, msg=MSG_UNHANDLED_KEY, sender=0x0, w=0x55e1ca864800)
>    at ../../lib/widget/widget-common.h:210
> #18 dlg_key_event (d_key=16399, h=0x55e1ca864800) at dialog.c:489
> #19 dlg_process_event (h=0x55e1ca864800, key=16399, event=<optimized out>) at dialog.c:1168
> #20 0x000055e1c8690c61 in frontend_dlg_run (h=0x55e1ca864800) at dialog.c:541
> #21 dlg_run (h=0x55e1ca864800) at dialog.c:1199
> #22 0x000055e1c86a9e2c in do_nc () at midnight.c:1791
> #23 0x000055e1c868474b in main (argc=<optimized out>, argv=<optimized out>) at main.c:409
>
> Regards,
> Nerijus
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> https://mail.gnome.org/mailman/listinfo/mc-devel
>

-- 
Sincerely yours,
Yury V. Zaytsev