Jemalloc library is hitting Segmentation fault on CentOS-7

[Ramesh Sivaraman]

Hi Team,

Jemalloc library is hitting  Segmentation fault on CentOS-7

With debug library Segmentation fault issue triggering with simple `ls`
command.

$ export LD_PRELOAD=/usr/lib/debug/usr/lib64/libjemalloc.so.1.debug
$ ls
Segmentation fault (core dumped)
$

Also seeing a segmentation fault issue (same issue?) with non-debug jemalloc

$ export LD_PRELOAD=/usr/lib64/libjemalloc.so.1
$ ./bin/mysqld --version
Segmentation fault (core dumped)
$ gdb ./bin/mysqld core.11345.mysqld.11
[..]
(gdb) bt
+bt
#0  0x00007f1c21fa5964 in get_nprocs () from /lib64/libc.so.6
#1  0x00007f1c21f70b0c in sysconf () from /lib64/libc.so.6
#2  0x00007f1c26efebd0 in malloc_ncpus () at src/jemalloc.c:256
#3  malloc_init_hard () at src/jemalloc.c:776
#4  0x00007f1c26f01705 in malloc_init () at src/jemalloc.c:292
#5  calloc (num=1, size=32) at src/jemalloc.c:1123
#6  0x00007f1c22eb1690 in _dlerror_run () from /lib64/libdl.so.2
#7  0x00007f1c22eb1198 in dlsym () from /lib64/libdl.so.2
#8  0x00007f1c23f88fec in ?? () from /lib64/libasan.so.0
#9  0x00007f1c23f7b2c9 in ?? () from /lib64/libasan.so.0
#10 0x00007f1c23f7d91b in __asan_init_v1 () from /lib64/libasan.so.0
#11 0x00007f1c271426c3 in _dl_init_internal () from
/lib64/ld-linux-x86-64.so.2
#12 0x00007f1c2713445a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#13 0x0000000000000002 in ?? ()
#14 0x00007fff9d552740 in ?? ()
#15 0x00007fff9d55274d in ?? ()
#16 0x0000000000000000 in ?? ()
(gdb)

-- 
Best Regards,

*Ramesh*
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