[Bug backtrace/23773] New: gdb crashed when I tried get backtrace

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[Bug backtrace/23773] New: gdb crashed when I tried get backtrace

albert.aribaud at 3adev dot fr
https://sourceware.org/bugzilla/show_bug.cgi?id=23773

            Bug ID: 23773
           Summary: gdb crashed when I tried get backtrace
           Product: gdb
           Version: 8.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: backtrace
          Assignee: unassigned at sourceware dot org
          Reporter: mikhail.v.gavrilov at gmail dot com
  Target Milestone: ---

Description of problem:
gdb crashed when I tried get backtrace

$ gdb -p 1978
GNU gdb (GDB) Fedora 8.2.50.20181006-4.fc30
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
Attaching to process 1978
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warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments

warning: Loadable section ".note.gnu.property" outside of ELF segments
0x00007fc8c75c6471 in __GI___poll (fds=0x5565b31d4620, nfds=15, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
29        return SYSCALL_CANCEL (poll, fds, nfds, timeout);
(gdb) thread apply all bt full
Segmentation fault (core dumped)


Version-Release number of selected component (if applicable):
$ gdb -v
GNU gdb (GDB) Fedora 8.2.50.20181006-4.fc30
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

$ rpm -q gdb
gdb-8.2.50.20181006-4.fc30.x86_64

Coredump here:
https://mega.nz/#!7lFiXA7a!P-prcpx3dYJzMcst42tsrWuldbnn3Uh0p78tJsqfh6E

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[Bug gdb/23773] gdb crashed when I tried get backtrace

albert.aribaud at 3adev dot fr
https://sourceware.org/bugzilla/show_bug.cgi?id=23773

Sergio Durigan Junior <sergiodj at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sergiodj at redhat dot com
          Component|backtrace                   |gdb
            Version|8.2.1                       |HEAD

--- Comment #2 from Sergio Durigan Junior <sergiodj at redhat dot com> ---
Patch posted upstream by Keith Seitz:

https://sourceware.org/ml/gdb-patches/2018-10/msg00299.html

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[Bug backtrace/23773] gdb crashed when I tried get backtrace

albert.aribaud at 3adev dot fr
In reply to this post by albert.aribaud at 3adev dot fr
https://sourceware.org/bugzilla/show_bug.cgi?id=23773

--- Comment #1 from mikhail.v.gavrilov at gmail dot com ---
Trying debugging core file of gdb produce new crash of gdb which try debug core
file of gdb. This is a recursion!!!
If I remove debuginfo files of gdb then gdb able opens core of gdb file
successfully, but without debuginfo it is useless.

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[Bug gdb/23773] gdb crashed when I tried get backtrace

albert.aribaud at 3adev dot fr
In reply to this post by albert.aribaud at 3adev dot fr
https://sourceware.org/bugzilla/show_bug.cgi?id=23773

--- Comment #3 from Sergio Durigan Junior <sergiodj at redhat dot com> ---
(In reply to Sergio Durigan Junior from comment #2)
> Patch posted upstream by Keith Seitz:
>
> https://sourceware.org/ml/gdb-patches/2018-10/msg00299.html

This patch doesn't fix this issue.  This bug is a different problem.

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