[Bugs] [Bug 1684777] New: gNFS crashed when processing "gluster v profile [vol] info nfs"

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1684777

            Bug ID: 1684777
           Summary: gNFS crashed when processing "gluster v profile [vol]
                    info nfs"
           Product: GlusterFS
           Version: 6
            Status: NEW
         Component: nfs
          Keywords: Triaged
          Assignee: bugs at gluster.org
          Reporter: srangana at redhat.com
                CC: bugs at gluster.org, jefferymymy at 163.com
        Depends On: 1677559
  Target Milestone: ---
    Classification: Community



+++ This bug was initially created as a clone of Bug #1677559 +++

Description of problem:
when processing "gluster v profile [vol] info nfs" after gnfs start, gnfs will
crash.

dump trace info:
/lib64/libglusterfs.so.0(_gf_msg_backtrace_nomem+0xc2)[0x7fcf5cb6a872]
/lib64/libglusterfs.so.0(gf_print_trace+0x324)[0x7fcf5cb743a4]
/lib64/libc.so.6(+0x35670)[0x7fcf5b1d5670]
/usr/sbin/glusterfs(glusterfs_handle_nfs_profile+0x114)[0x7fcf5d066474]
/lib64/libglusterfs.so.0(synctask_wrap+0x12)[0x7fcf5cba1502]
/lib64/libc.so.6(+0x47110)[0x7fcf5b1e7110]

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.create dht volume naming dht_vol,and start the vol
2.start volume profile
3.kill gnfs process
4.process cli "service glusterd restart;gluster volume profile dht_vol info
nfs"


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1677559
[Bug 1677559] gNFS crashed when processing "gluster v profile [vol] info nfs"
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