[Bugs] [Bug 1745965] glusterd fails to start dumping core via SIGABRT

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1745965



--- Comment #1 from Anoop C S <anoopcs at redhat.com> ---
$ sudo gdb /usr/sbin/glusterd core.12898 
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-114.el7
Copyright (C) 2013 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".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/glusterfsd...Reading symbols from
/usr/lib/debug/usr/sbin/glusterfsd.debug...done.
done.

warning: core file may not match specified executable file.
[New LWP 12898]
[New LWP 12899]
[New LWP 12900]
[New LWP 12901]
[New LWP 12902]
[New LWP 12903]
[New LWP 12904]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `glusterd --debug'.
Program terminated with signal 6, Aborted.
#0  0x00007fbd7ad852c7 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
55        return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0  0x00007fbd7ad852c7 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
#1  0x00007fbd7ad869b8 in __GI_abort () at abort.c:90
#2  0x00007fbd7adc7e17 in __libc_message (do_abort=do_abort at entry=2,
fmt=fmt at entry=0x7fbd7aed8492 "*** %s ***: %s terminated\n") at
../sysdeps/unix/sysv/linux/libc_fatal.c:196
#3  0x00007fbd7ae66b67 in __GI___fortify_fail (msg=msg at entry=0x7fbd7aed8438
"buffer overflow detected") at fortify_fail.c:30
#4  0x00007fbd7ae64ce2 in __GI___chk_fail () at chk_fail.c:28
#5  0x00007fbd7ae643fb in ___vsnprintf_chk (s=<optimized out>,
maxlen=<optimized out>, flags=<optimized out>, slen=<optimized out>,
format=<optimized out>, args=args at entry=0x7ffefca6cdf8)
    at vsnprintf_chk.c:37
#6  0x00007fbd7ae64318 in ___snprintf_chk (s=s at entry=0x7ffefca6d130 "",
maxlen=maxlen at entry=4096, flags=flags at entry=1, slen=slen at entry=3776,
format=format at entry=0x7fbd709a8eab "%s")
    at snprintf_chk.c:35
#7  0x00007fbd70866029 in snprintf (__fmt=0x7fbd709a8eab "%s", __n=4096,
__s=0x7ffefca6d130 "") at /usr/include/bits/stdio2.h:64
#8  init (this=0x557ef9f3b510) at glusterd.c:1450
#9  0x00007fbd7c740ed1 in __xlator_init (xl=0x557ef9f3b510) at xlator.c:597
#10 xlator_init (xl=xl at entry=0x557ef9f3b510) at xlator.c:623
#11 0x00007fbd7c77dbd9 in glusterfs_graph_init
(graph=graph at entry=0x557ef9f37140) at graph.c:422
#12 0x00007fbd7c77e245 in glusterfs_graph_activate
(graph=graph at entry=0x557ef9f37140, ctx=ctx at entry=0x557ef9ef2010) at graph.c:776
#13 0x0000557ef8287182 in glusterfs_process_volfp
(ctx=ctx at entry=0x557ef9ef2010, fp=fp at entry=0x557ef9f36bb0) at glusterfsd.c:2728
#14 0x0000557ef828733d in glusterfs_volumes_init (ctx=ctx at entry=0x557ef9ef2010)
at glusterfsd.c:2800
#15 0x0000557ef8282a3a in main (argc=2, argv=<optimized out>) at
glusterfsd.c:2962
(gdb) f 8
#8  init (this=0x557ef9f3b510) at glusterd.c:1450
1450            len = snprintf(logdir, PATH_MAX, "%s",
DEFAULT_LOG_FILE_DIRECTORY);
(gdb) l 1396
1391            0,
1392        };
1393        char rundir[PATH_MAX] = {
1394            0,
1395        };
1396        char logdir[VALID_GLUSTERD_PATHMAX] = {
1397            0,
1398        };
1399        char cmd_log_filename[PATH_MAX] = {
1400            0,
(gdb) f 3
#3  0x00007fbd7ae66b67 in __GI___fortify_fail (msg=msg at entry=0x7fbd7aed8438
"buffer overflow detected") at fortify_fail.c:30
30          __libc_message (2, "*** %s ***: %s terminated\n",

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