Arch Linux

Description:
I'm recently getting segfaults with a number of programs (running vlc, sublime, on closing emacs etc). According to running them with gdb the common ingredient is a call to __lll_unlock_elision in /usr/lib64/libpthread.so.0:



Additional info:
* package version(s)
* config and/or log files etc.


Steps to reproduce on my current setup:
gdb emacs
GNU gdb (GDB) 7.9
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Reading symbols from emacs...(no debugging symbols found)...done.
(gdb) r
Starting program: /usr/bin/emacs
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
[New Thread 0x7fffe4e60700 (LWP 17042)]
[New Thread 0x7fffe587d700 (LWP 17041)]
[New Thread 0x7fffe6c2e700 (LWP 17040)]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff17c0080 in __lll_unlock_elision () from /usr/lib64/libpthread.so.0
(gdb) bt full
#0 0x00007ffff17c0080 in __lll_unlock_elision () from /usr/lib64/libpthread.so.0
No symbol table info available.
#1 0x00007fffee2ce12c in ?? () from /usr/lib64/libEGL.so.1
No symbol table info available.
#2 0x00007fffee2608c2 in ?? () from /usr/lib64/libEGL.so.1
No symbol table info available.
#3 0x00007fffffffd940 in ?? ()
No symbol table info available.
#4 0x00007fffee2df831 in ?? () from /usr/lib64/libEGL.so.1
No symbol table info available.
#5 0x00007fffffffd940 in ?? ()
No symbol table info available.
#6 0x00007ffff7dea6f5 in _dl_fini () from /lib64/ld-linux-x86-64.so.2
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) quit
A debugging session is active.

Inferior 1 [process 17036] will be killed.

Quit anyway? (y or n) y