Comment 0 for bug 1687096

This seen multiple times on Sanity tests.
Both Control and DNS crashes with similar back-traces and so tracking both here.

root@5a10s31:/var/crashes# ls -ltrd *
-rw------- 1 contrail contrail 33841152 Apr 27 17:17 5a10s31_core.contrail-dns.24694.5a10s31.1493338647
-rw------- 1 contrail contrail 36265984 Apr 27 17:21 5a10s31_core.contrail-contro.24693.5a10s31.1493338900
drwxr-xr-x 2 root root 4096 Apr 27 19:30 saved
-rw------- 1 contrail contrail 40079360 Apr 28 07:38 core.contrail-dns.6117.5a10s31.1493390310
-rw------- 1 contrail contrail 38383616 Apr 28 07:39 core.contrail-dns.31841.5a10s31.1493390376
-rwxrwxrwx 1 root root 304749953 Apr 28 12:16 contrail-control
root@5a10s31:/var/crashes#

>>>>>>>> DNS

root@5a10s31:/var/crashes# gdb /usr/bin/contrail-dns core.contrail-dns.31841.5a10s31.1493390376
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Copyright (C) 2014 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-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"...
Reading symbols from /usr/bin/contrail-dns...done.
[New LWP 31891]
[New LWP 31841]
[New LWP 31889]
[New LWP 31893]
[New LWP 31892]
[New LWP 31890]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/contrail-dns'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007ff8fd8fec37 in __mpn_submul_1 () at ../sysdeps/x86_64/addmul_1.S:90
90 ../sysdeps/x86_64/addmul_1.S: No such file or directory.
(gdb) bt
#0 0x00007ff8fd8fec37 in __mpn_submul_1 () at ../sysdeps/x86_64/addmul_1.S:90
#1 0x00007ff8fd902028 in drand48 () at drand48.c:27
#2 0x0000000000000000 in ?? ()
(gdb)

>>>>> Control

root@5a10s31:/var/crashes# gdb /usr/bin/contrail-dns 5a10s31_core.contrail-dns.24694.5a10s31.1493338647
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Copyright (C) 2014 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-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"...
Reading symbols from /usr/bin/contrail-dns...done.
Illegal process-id: 5a10s31_core.contrail-dns.24694.5a10s31.1493338647.
[New LWP 24819]
[New LWP 24820]
[New LWP 24824]
[New LWP 24694]
[New LWP 24818]
[New LWP 24821]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/contrail-dns'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007f67d2e3ac37 in __mpn_submul_1 () at ../sysdeps/x86_64/addmul_1.S:90
90 ../sysdeps/x86_64/addmul_1.S: No such file or directory.
(gdb) bt
#0 0x00007f67d2e3ac37 in __mpn_submul_1 () at ../sysdeps/x86_64/addmul_1.S:90
#1 0x00007f67d2e3e028 in drand48 () at drand48.c:27
#2 0x0000000000000000 in ?? ()
(gdb) quit
root@5a10s31:/var/crashes#