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<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">From one coredump recently I got two interesting thread call back trace, from which seems glustershd has two thread polling in message from the same client simultaneously,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Thread 17 (Thread 0x7f8485247700 (LWP 6063)):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#0 0x00007f8489787c80 in pthread_mutex_lock () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#1 0x00007f848a9c177e in dict_ref (this=0x18004f0f0) at dict.c:660<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#2 0x00007f84845920e4 in afr_selfheal_discover_cbk (frame=</span><b><span lang="EN-US" style="color:#4472C4">0x7f847400bf00</span></b><span lang="EN-US" style="color:windowtext">,
</span><b><span lang="EN-US" style="color:#70AD47">cookie=0x2, this=0x7f84800390b0, op_ret=0, op_errno=0, inode=0x0,
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#70AD47"> buf=0x7f84740116e0, xdata=0x18004f0f0, parbuf=0x7f8474019e80</span></b><span lang="EN-US" style="color:windowtext">) at afr-self-heal-common.c:1723<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#3 0x00007f848480b96d in client3_3_entrylk_cbk (req=0x7f8474019e40, iov=0x7f8474019e80, count=1, myframe=</span><b><span lang="EN-US" style="color:red">0x7f84740116e0</span></b><span lang="EN-US" style="color:windowtext">)
at client-rpc-fops.c:1611<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#4 0x00007f848a78ed47 in rpc_clnt_handle_reply (clnt=<b><span style="color:#C55A11;mso-style-textfill-fill-color:#C55A11;mso-style-textfill-fill-alpha:100.0%">0x7f848004f0c0</span></b>, pollin=0x7f84800bd6d0)
at rpc-clnt.c:778<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#5 0x00007f848a78f2e5 in rpc_clnt_notify (trans=0x7f848004f2f0, mydata=0x7f848004f0f0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f84800bd6d0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> at rpc-clnt.c:971<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#6 0x00007f848a78b319 in rpc_transport_notify (this=0x7f848004f2f0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f84800bd6d0) at rpc-transport.c:538<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#7 0x00007f84856d234d in socket_event_poll_in (this=0x7f848004f2f0, notify_handled=_gf_true) at socket.c:2315<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#8 0x00007f84856d2992 in socket_event_handler (fd=15, idx=8, gen=1, data=0x7f848004f2f0, poll_in=1, poll_out=0, poll_err=0) at socket.c:2471<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#9 0x00007f848aa395ac in event_dispatch_epoll_handler (event_pool=0x1d40b00, event=0x7f8485246e84) at event-epoll.c:583<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#10 0x00007f848aa39883 in event_dispatch_epoll_worker (data=0x1d883d0) at event-epoll.c:659<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#11 0x00007f84897855da in start_thread () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#12 0x00007f848905bcbf in clone () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">And <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Thread 1 (Thread 0x7f847f6ff700 (LWP 6083)):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#0 0x00007f8484812d24 in client3_3_lookup_cbk (req=0x7f8474002300, iov=0x7f8474002340, count=1, myframe=</span><span lang="EN-US" style="color:red">0x7f84740116e0</span><span lang="EN-US" style="color:windowtext">)
at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#1 0x00007f848a78ed47 in rpc_clnt_handle_reply (clnt=<b><span style="color:#C55A11;mso-style-textfill-fill-color:#C55A11;mso-style-textfill-fill-alpha:100.0%">0x7f848004f0c0</span></b>, pollin=0x7f847800d9f0)
at rpc-clnt.c:778<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#2 0x00007f848a78f2e5 in rpc_clnt_notify (trans=0x7f848004f2f0, mydata=0x7f848004f0f0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f847800d9f0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> at rpc-clnt.c:971<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#3 0x00007f848a78b319 in rpc_transport_notify (this=0x7f848004f2f0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f847800d9f0) at rpc-transport.c:538<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#4 0x00007f84856d234d in socket_event_poll_in (this=0x7f848004f2f0, notify_handled=_gf_true) at socket.c:2315<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#5 0x00007f84856d2992 in socket_event_handler (fd=15, idx=8, gen=1, data=0x7f848004f2f0, poll_in=1, poll_out=0, poll_err=0) at socket.c:2471<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#6 0x00007f848aa395ac in event_dispatch_epoll_handler (event_pool=0x1d40b00, event=0x7f847f6fee84) at event-epoll.c:583<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#7 0x00007f848aa39883 in event_dispatch_epoll_worker (data=0x7f848004ef30) at event-epoll.c:659<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#8 0x00007f84897855da in start_thread () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">#9 0x00007f848905bcbf in clone () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Coredump generate because theread 1 myframe->local is 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">(gdb) print *(struct _call_frame*)myframe<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">$12 = {root = 0x7f8474008180, parent = 0x7f847400bf00, frames = {next = 0x7f8474009230, prev = 0x7f8474008878},
</span><b><span lang="EN-US" style="color:#C00000">local = 0x0</span></b><span lang="EN-US" style="color:windowtext">,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> this = 0x7f8480036e20, ret = 0x7f8484591e93 <afr_selfheal_discover_cbk>, ref_count = 0, lock = {spinlock = 0, mutex = {__data = {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> __lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x0,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, cookie = 0x2, complete = _gf_true, op = GF_FOP_NULL,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> begin = {tv_sec = 0, tv_usec = 0}, end = {tv_sec = 0, tv_usec = 0},
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> wind_from = 0x7f84845cba60 <__FUNCTION__.18726> "afr_selfheal_unlocked_discover_on",
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> wind_to = 0x7f84845cb090 "__priv->children[__i]->fops->lookup",
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"> unwind_from = 0x7f848483a350 <__FUNCTION__.18496> "client3_3_entrylk_cbk", unwind_to = 0x7f84845cb0b4 "afr_selfheal_discover_cbk"}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">[Analysis]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">It seems thread 17 is receiving a msg reply and it get call frame
</span><b><span lang="EN-US" style="color:red">0x7f84740116e0 and</span></b><span lang="EN-US" style="color:windowtext"> called client3_3_entrylk_cbk,
<b>but</b> from source code, when client3_3_entrylk_cbk do unwind <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><img width="635" height="81" style="width:6.6166in;height:.8416in" id="_x0000_i1026" src="cid:image004.jpg@01D46792.607C1DE0"></span><span lang="EN-US" style="color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Even if it could find correct ret address, the param passed to it should not be as the params high-lighted in green colour!!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Another weird thing is that when rpc_clnt_handle_reply find frame
</span><b><span lang="EN-US" style="color:red">0x7f84740116e0, </span></b><span lang="EN-US" style="color:black">it should be removed from list, why thread 1 could retrieve this from again??<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">I checked that when client3_3_lookup_cbk do the unwind the param passed to parent frame is as the param high-lighted in green colour.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Zhou, Cynthia (NSB - CN/Hangzhou) <br>
<b>Sent:</b> Tuesday, October 16, 2018 5:24 PM<br>
<b>To:</b> Ravishankar N <ravishankar@redhat.com><br>
<b>Cc:</b> gluster-users <gluster-users@gluster.org><br>
<b>Subject:</b> RE: glustershd coredump generated while reboot all 3 sn nodes<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">By the way not any private patch applied,
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1639632">https://bugzilla.redhat.com/show_bug.cgi?id=1639632</a> is created to follow this issue, I enclose one coredump in the bug,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">There is not much useful info from glustershd log, because this process coredump suddenly the log only show prints several seconds before.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">cynthia<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Zhou, Cynthia (NSB - CN/Hangzhou) <br>
<b>Sent:</b> Tuesday, October 16, 2018 2:15 PM<br>
<b>To:</b> Ravishankar N <<a href="mailto:ravishankar@redhat.com">ravishankar@redhat.com</a>><br>
<b>Cc:</b> gluster-users <<a href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a>><br>
<b>Subject:</b> RE: glustershd coredump generated while reboot all 3 sn nodes<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Yes it is glusterfs3.12.3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">I will create BZ and attach related coredump and glusterfs log<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">cynthia<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Ravishankar N <<a href="mailto:ravishankar@redhat.com">ravishankar@redhat.com</a>>
<br>
<b>Sent:</b> Tuesday, October 16, 2018 12:23 PM<br>
<b>To:</b> Zhou, Cynthia (NSB - CN/Hangzhou) <<a href="mailto:cynthia.zhou@nokia-sbell.com">cynthia.zhou@nokia-sbell.com</a>><br>
<b>Cc:</b> gluster-users <<a href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a>><br>
<b>Subject:</b> Re: glustershd coredump generated while reboot all 3 sn nodes<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p><span lang="EN-US">- Is this stock glusterfs-3.12.3? Or do you have any patches applied on top of it?<o:p></o:p></span></p>
<p><span lang="EN-US">- If it is stock, could you create a BZ and attach the core file and the /var/log/glusterfs/ logs from 3 nodes at the time of crash?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US">Thanks,<br>
Ravi<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US">On 10/16/2018 08:45 AM, Zhou, Cynthia (NSB - CN/Hangzhou) wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EN-US">Hi, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This issue happened twice recently, when glustershd do heal, it generate coredump occassinally,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I do some debug and find that sometimes afr_selfheal_unlocked_discover_on do lookup and saved the frame in function rpc_clnt_submit, when reply comes, it find the saved frame , but the address is different from the saved
frame address, I think this is wrong, but I can not find a clue how this happened?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[root@mn-0:/home/robot]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[Thread debugging using libthread_db enabled]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Using host libthread_db library "/lib64/libthread_db.so.1".<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Core was generated by `/usr/sbin/glusterfs -s sn-0.local --volfile-id gluster/glustershd -p /var/run/g'.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Program terminated with signal SIGSEGV, Segmentation fault.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007fb1a6fd9d24 in client3_3_lookup_cbk (req=0x7fb188010fb0, iov=0x7fb188010ff0, count=1, myframe=</span><b><span lang="EN-US" style="color:#C00000">0x7fb188215740</span></b><span lang="EN-US">) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2802 client-rpc-fops.c: No such file or directory.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[Current thread is 1 (Thread 0x7fb1a7a0e700 (LWP 8151))]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Missing separate debuginfos, use: dnf debuginfo-install rcp-pack-glusterfs-1.2.0-RCP2.wf29.x86_64<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) bt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007fb1a6fd9d24 in client3_3_lookup_cbk (req=0x7fb188010fb0, iov=0x7fb188010ff0, count=1, myframe=0x7fb188215740) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#1 0x00007fb1acf55d47 in rpc_clnt_handle_reply (clnt=0x7fb1a008fff0, pollin=0x7fb1a0843910) at rpc-clnt.c:778<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#2 0x00007fb1acf562e5 in rpc_clnt_notify (trans=0x7fb1a00901c0, mydata=0x7fb1a0090020, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7fb1a0843910) at rpc-clnt.c:971<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#3 0x00007fb1acf52319 in rpc_transport_notify (this=0x7fb1a00901c0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7fb1a0843910) at rpc-transport.c:538<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#4 0x00007fb1a7e9934d in socket_event_poll_in (this=0x7fb1a00901c0, notify_handled=_gf_true) at socket.c:2315<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#5 0x00007fb1a7e99992 in socket_event_handler (fd=20, idx=14, gen=103, data=0x7fb1a00901c0, poll_in=1, poll_out=0, poll_err=0) at socket.c:2471<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#6 0x00007fb1ad2005ac in event_dispatch_epoll_handler (event_pool=0x175fb00, event=0x7fb1a7a0de84) at event-epoll.c:583<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#7 0x00007fb1ad200883 in event_dispatch_epoll_worker (data=0x17a73d0) at event-epoll.c:659<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#8 0x00007fb1abf4c5da in start_thread () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#9 0x00007fb1ab822cbf in clone () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) info thread<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Id Target Id Frame <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">* 1 Thread 0x7fb1a7a0e700 (LWP 8151) 0x00007fb1a6fd9d24 in client3_3_lookup_cbk (req=0x7fb188010fb0, iov=0x7fb188010ff0, count=1, myframe=0x7fb188215740) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 2 Thread 0x7fb1aa0af700 (LWP 8147) 0x00007fb1ab761cbc in sigtimedwait () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 3 Thread 0x7fb1a98ae700 (LWP 8148) 0x00007fb1ab7f04b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 4 Thread 0x7fb1957fa700 (LWP 8266) 0x00007fb1abf528ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 5 Thread 0x7fb1a88ac700 (LWP 8150) 0x00007fb1abf528ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 6 Thread 0x7fb17f7fe700 (LWP 8269) 0x00007fb1abf5250c in
<a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">pthread_cond_wait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 7 Thread 0x7fb1aa8b0700 (LWP 8146) 0x00007fb1abf56300 in nanosleep () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 8 Thread 0x7fb1ad685780 (LWP 8145) 0x00007fb1abf4da3d in __pthread_timedjoin_ex () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 9 Thread 0x7fb1a542d700 (LWP 8251) 0x00007fb1ab7f04b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 10 Thread 0x7fb1a4c2c700 (LWP 8260) 0x00007fb1abf528ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 11 Thread 0x7fb196ffd700 (LWP 8263) 0x00007fb1abf528ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 12 Thread 0x7fb1a60d7700 (LWP 8247) 0x00007fb1ab822fe7 in epoll_wait () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 13 Thread 0x7fb1a90ad700 (LWP 8149) 0x00007fb1abf528ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) print (call_frame_t*)myframe<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">$1 = (call_frame_t *) 0x7fb188215740<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) print *(call_frame_t*)myframe<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">$2 = {root = 0x7fb1a0085090, parent = 0xcd4642c4a3efd678, frames = {next = 0x151e2a92a5ae1bb, prev = 0x0},
</span><b><span lang="EN-US" style="color:#C00000">local = 0x0, this = 0x0, ret = 0x0</span></b><span lang="EN-US">, ref_count = 0, lock = {spinlock = 0, mutex = {__data = {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> __lock = 0, __count = 0, __owner = 0, __nusers = 4, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x7fb188215798, __next = 0x7fb188215798}},
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> __size = '\000' <repeats 12 times>, "\004", '\000' <repeats 11 times>, "\230W!\210\261\177\000\000\230W!\210\261\177\000", __align = 0}}, cookie = 0x7fb1882157a8, complete = (unknown: 2283886504),
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> op = 32689, begin = {tv_sec = 140400469825464, tv_usec = 140400469825464}, end = {tv_sec = 140400878737576, tv_usec = 140400132101048}, wind_from = 0x7fb18801cdc0 "", wind_to = 0x0, unwind_from = 0x0,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> unwind_to = 0x0}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) thread 6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[Switching to thread 6 (Thread 0x7fb17f7fe700 (LWP 8269))]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007fb1abf5250c in <a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">
pthread_cond_wait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) bt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007fb1abf5250c in <a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">
pthread_cond_wait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#1 0x00007fb1ad1dc993 in __syncbarrier_wait (barrier=0x7fb188014790, waitfor=3) at syncop.c:1138<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#2 0x00007fb1ad1dc9e4 in syncbarrier_wait (barrier=0x7fb188014790, waitfor=3) at syncop.c:1155<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#3 0x00007fb1a6d59cde in afr_selfheal_unlocked_discover_on (</span><b><span lang="EN-US" style="color:#C00000">frame=0x7fb1882162d0</span></b><span lang="EN-US">, inode=0x7fb188215740, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177",
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> replies=0x7fb17f7fcf40, discover_on=0x7fb1a0084cb0 "\001\001\001", <incomplete sequence \360\255\272>) at afr-self-heal-common.c:1809<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#4 0x00007fb1a6d59d80 in afr_selfheal_unlocked_discover (</span><b><span lang="EN-US" style="color:#C00000">frame=0x7fb1882162d0</span></b><span lang="EN-US">, inode=0x7fb188215740, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177",
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> replies=0x7fb17f7fcf40) at afr-self-heal-common.c:1828<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#5 0x00007fb1a6d5e51f in afr_selfheal_unlocked_inspect (frame=0x7fb1882162d0, this=0x7fb1a001db40, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177",
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> link_inode=0x7fb17f7fd9c8, data_selfheal=0x7fb17f7fd9c4, metadata_selfheal=0x7fb17f7fd9c0, entry_selfheal=0x7fb17f7fd9bc) at afr-self-heal-common.c:2241<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#6 0x00007fb1a6d5f19b in afr_selfheal_do (frame=0x7fb1882162d0, this=0x7fb1a001db40, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177")
at afr-self-heal-common.c:2483<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#7 0x00007fb1a6d5f346 in afr_selfheal (this=0x7fb1a001db40, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177")
at afr-self-heal-common.c:2543<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#8 0x00007fb1a6d6ac5c in afr_shd_selfheal (healer=0x7fb1a0085640, child=0, gfid=0x7fb17f7fdb00 "x\326\357\243\304BF</span><span lang="EN-US" style="font-family:"Cambria",serif">ͻ</span><span lang="EN-US">\341Z*\251\342Q\001\060\333\177\177\261\177")
at afr-self-heald.c:343<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#9 0x00007fb1a6d6b00b in afr_shd_index_heal (subvol=0x7fb1a00171e0, entry=0x7fb1a0714180, parent=0x7fb17f7fddc0, data=0x7fb1a0085640) at afr-self-heald.c:440<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#10 0x00007fb1ad201ed3 in syncop_mt_dir_scan (frame=0x7fb1a07a0e90, subvol=0x7fb1a00171e0, loc=0x7fb17f7fddc0, pid=-6, data=0x7fb1a0085640, fn=0x7fb1a6d6aebc <afr_shd_index_heal>, xdata=0x7fb1a07b4ed0,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> max_jobs=1, max_qlen=1024) at syncop-utils.c:407<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#11 0x00007fb1a6d6b2b5 in afr_shd_index_sweep (healer=0x7fb1a0085640, vgfid=0x7fb1a6d93610 "glusterfs.xattrop_index_gfid") at afr-self-heald.c:494<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#12 0x00007fb1a6d6b394 in afr_shd_index_sweep_all (healer=0x7fb1a0085640) at afr-self-heald.c:517<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#13 0x00007fb1a6d6b697 in afr_shd_index_healer (data=0x7fb1a0085640) at afr-self-heald.c:597<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#14 0x00007fb1abf4c5da in start_thread () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#15 0x00007fb1ab822cbf in clone () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Zhou, Cynthia (NSB - CN/Hangzhou)
<br>
<b>Sent:</b> Thursday, October 11, 2018 3:36 PM<br>
<b>To:</b> Ravishankar N <a href="mailto:ravishankar@redhat.com"><ravishankar@redhat.com></a><br>
<b>Cc:</b> gluster-users <a href="mailto:gluster-users@gluster.org"><gluster-users@gluster.org></a><br>
<b>Subject:</b> glustershd coredump generated while reboot all 3 sn nodes</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I find that when restart sn node sometimes, the glustershd will exit and generate coredump. It has happened twice in my env, I would like to know your opinion on this issue, thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The glusterfs version I use is glusterfs3.12.3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[root@sn-1:/root]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># gluster v info log<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Volume Name: log<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Type: Replicate<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Volume ID: 87bcbaf8-5fa4-4060-9149-23f832befe92<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Status: Started<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Snapshot Count: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Number of Bricks: 1 x 3 = 3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Transport-type: tcp<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Bricks:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Brick1: sn-0.local:/mnt/bricks/log/brick<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Brick2: sn-1.local:/mnt/bricks/log/brick<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Brick3: sn-2.local:/mnt/bricks/log/brick<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Options Reconfigured:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">server.allow-insecure: on<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.quorum-type: auto<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">network.ping-timeout: 42<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.consistent-metadata: on<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.favorite-child-policy: mtime<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.quorum-reads: no<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.server-quorum-type: none<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">transport.address-family: inet<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">nfs.disable: on<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">performance.client-io-threads: off<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cluster.server-quorum-ratio: 51%<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[root@sn-1:/root]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">///////////////////////////////////////////////glustershd coredump////////////////////////////////////////////////////////////////<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># lz4 -d core.glusterfs.0.c5f0c5547fbd4e5aa8f350b748e5675e.1812.1537967075000000.lz4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Decoding file core.glusterfs.0.c5f0c5547fbd4e5aa8f350b748e5675e.1812.1537967075000000
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">core.glusterfs.0.c5f : decoded 263188480 bytes
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[root@sn-0:/mnt/export]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># gdb /usr/sbin/glusterfs core.glusterfs.0.c5f0c5547fbd4e5aa8f350b748e5675e.1812.1537967075000000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">GNU gdb (GDB) Fedora 8.1-14.wf29<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Copyright (C) 2018 Free Software Foundation, Inc.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">License GPLv3+: GNU GPL version 3 or later <<a href="http://gnu.org/licenses/gpl.html">http://gnu.org/licenses/gpl.html</a>><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This is free software: you are free to change and redistribute it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">There is NO WARRANTY, to the extent permitted by law. Type "show copying"<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">and "show warranty" for details.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This GDB was configured as "x86_64-redhat-linux-gnu".<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Type "show configuration" for configuration details.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For bug reporting instructions, please see:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><<a href="http://www.gnu.org/software/gdb/bugs/">http://www.gnu.org/software/gdb/bugs/</a>>.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Find the GDB manual and other documentation resources online at:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><<a href="http://www.gnu.org/software/gdb/documentation/">http://www.gnu.org/software/gdb/documentation/</a>>.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For help, type "help".<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Type "apropos word" to search for commands related to "word"...<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Reading symbols from /usr/sbin/glusterfs...(no debugging symbols found)...done.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">warning: core file may not match specified executable file.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1818]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1812]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1813]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1817]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1966]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1968]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1970]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1974]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1976]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1814]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1815]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1816]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[New LWP 1828]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[Thread debugging using libthread_db enabled]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Using host libthread_db library "/lib64/libthread_db.so.1".<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Core was generated by `/usr/sbin/glusterfs -s sn-0.local --volfile-id gluster/glustershd -p /var/run/g'.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Program terminated with signal SIGSEGV, Segmentation fault.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007f1b5e5d7d24 in client3_3_lookup_cbk (req=0x7f1b44002300, iov=0x7f1b44002340, count=1, myframe=0x7f1b4401c850) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2802 client-rpc-fops.c: No such file or directory.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">[Current thread is 1 (Thread 0x7f1b5f00c700 (LWP 1818))]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Missing separate debuginfos, use: dnf debuginfo-install rcp-pack-glusterfs-1.2.0_1_g54e6196-RCP2.wf29.x86_64<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) bt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x00007f1b5e5d7d24 in client3_3_lookup_cbk (req=0x7f1b44002300, iov=0x7f1b44002340, count=1, myframe=0x7f1b4401c850) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#1 0x00007f1b64553d47 in rpc_clnt_handle_reply (clnt=0x7f1b5808bbb0, pollin=0x7f1b580c6620) at rpc-clnt.c:778<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#2 0x00007f1b645542e5 in rpc_clnt_notify (trans=0x7f1b5808bde0, mydata=0x7f1b5808bbe0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f1b580c6620) at rpc-clnt.c:971<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#3 0x00007f1b64550319 in rpc_transport_notify (this=0x7f1b5808bde0, event=RPC_TRANSPORT_MSG_RECEIVED, data=0x7f1b580c6620) at rpc-transport.c:538<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#4 0x00007f1b5f49734d in socket_event_poll_in (this=0x7f1b5808bde0, notify_handled=_gf_true) at socket.c:2315<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#5 0x00007f1b5f497992 in socket_event_handler (fd=25, idx=15, gen=7, data=0x7f1b5808bde0, poll_in=1, poll_out=0, poll_err=0) at socket.c:2471<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#6 0x00007f1b647fe5ac in event_dispatch_epoll_handler (event_pool=0x230cb00, event=0x7f1b5f00be84) at event-epoll.c:583<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#7 0x00007f1b647fe883 in event_dispatch_epoll_worker (data=0x23543d0) at event-epoll.c:659<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#8 0x00007f1b6354a5da in start_thread () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#9 0x00007f1b62e20cbf in clone () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:red">(gdb) print *(call_frame_t*)myframe</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:red">$1 = {root = 0x100000000, parent = 0x100000005, frames = {next = 0x7f1b4401c8a8, prev = 0x7f1b44010190},
</span></b><b><span lang="EN-US" style="color:#1F4E79">local = 0x0</span></b><b><span lang="EN-US" style="color:red">, this = 0x0, ret = 0x0, ref_count = 0, lock = {spinlock = 0, mutex = {__data = {</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:red"> __lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x7f1b44010190, __next = 0x0}},
</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:red"> __size = '\000' <repeats 24 times>, "\220\001\001D\033\177\000\000\000\000\000\000\000\000\000", __align = 0}}, cookie = 0x7f1b4401ccf0, complete = _gf_false, op = GF_FOP_NULL, begin = {</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:red"> tv_sec = 139755081730912, tv_usec = 139755081785872}, end = {tv_sec = 448811404, tv_usec = 21474836481}, wind_from = 0x0, wind_to = 0x0, unwind_from = 0x0, unwind_to = 0x0}</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) info thread<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Id Target Id Frame <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">* 1 Thread 0x7f1b5f00c700 (LWP 1818) 0x00007f1b5e5d7d24 in client3_3_lookup_cbk (req=0x7f1b44002300, iov=0x7f1b44002340, count=1, myframe=0x7f1b4401c850) at client-rpc-fops.c:2802<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 2 Thread 0x7f1b64c83780 (LWP 1812) 0x00007f1b6354ba3d in __pthread_timedjoin_ex () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 3 Thread 0x7f1b61eae700 (LWP 1813) 0x00007f1b63554300 in nanosleep () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 4 Thread 0x7f1b5feaa700 (LWP 1817) 0x00007f1b635508ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 5 Thread 0x7f1b5ca2b700 (LWP 1966) 0x00007f1b62dee4b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 6 Thread 0x7f1b4f7fe700 (LWP 1968) 0x00007f1b6355050c in
<a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">pthread_cond_wait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 7 Thread 0x7f1b4e7fc700 (LWP 1970) 0x00007f1b6355050c in
<a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">pthread_cond_wait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 8 Thread 0x7f1b4d7fa700 (LWP 1974) 0x00007f1b62dee4b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 9 Thread 0x7f1b33fff700 (LWP 1976) 0x00007f1b62dee4b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 10 Thread 0x7f1b616ad700 (LWP 1814) 0x00007f1b62d5fcbc in sigtimedwait () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 11 Thread 0x7f1b60eac700 (LWP 1815) 0x00007f1b62dee4b0 in nanosleep () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 12 Thread 0x7f1b606ab700 (LWP 1816) 0x00007f1b635508ca in
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 13 Thread 0x7f1b5d6d5700 (LWP 1828) 0x00007f1b62e20fe7 in epoll_wait () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(gdb) quit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The source code is like this, so from gdb it coredump because frame->local is
</span><b><span lang="EN-US" style="color:red">NULL</span></b><span lang="EN-US">!!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="997" height="370" style="width:10.3833in;height:3.85in" id="Picture_x0020_1" src="cid:image006.jpg@01D46792.607C1DE0"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">From sn-0 journal log,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Sep 26 16:04:40.034577 sn-0 systemd-coredump[2612]: Process 1812 (glusterfs) of user 0 dumped core.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1818:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b5e5d7d24 client3_3_lookup_cbk (client.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b64553d47 rpc_clnt_handle_reply (libgfrpc.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b645542e5 rpc_clnt_notify (libgfrpc.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b64550319 rpc_transport_notify (libgfrpc.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b5f49734d socket_event_poll_in (socket.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #5 0x00007f1b5f497992 socket_event_handler (socket.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #6 0x00007f1b647fe5ac event_dispatch_epoll_handler (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #7 0x00007f1b647fe883 event_dispatch_epoll_worker (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #8 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #9 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1812:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b6354ba3d __GI___pthread_timedjoin_ex (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647feae1 event_dispatch_epoll (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647c2703 event_dispatch (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x000000000040ab95 main (glusterfsd)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62d4baf7 __libc_start_main (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #5 0x000000000040543a _start (glusterfsd)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1813:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b63554300 __nanosleep (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647a04e5 gf_timer_proc (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1817:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b635508ca
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647d98e3 syncenv_task (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647d9b7e syncenv_processor (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1966:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62dee4b0 __nanosleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b62dee38a sleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b5e36970c afr_shd_index_healer (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1968:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b6355050c
<a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">pthread_cond_wait@@GLIBC_2.3.2</a> (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647da993 __syncbarrier_wait (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647da9e4 syncbarrier_wait (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b5e357cde afr_selfheal_unlocked_discover_on (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b5e357d80 afr_selfheal_unlocked_discover (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #5 0x00007f1b5e363bf8 __afr_selfheal_entry_prepare (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #6 0x00007f1b5e3641c0 afr_selfheal_entry_dirent (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #7 0x00007f1b5e36488a afr_selfheal_entry_do_subvol (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #8 0x00007f1b5e365077 afr_selfheal_entry_do (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #9 0x00007f1b5e3656b6 __afr_selfheal_entry (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #10 0x00007f1b5e365bba afr_selfheal_entry (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #11 0x00007f1b5e35d250 afr_selfheal_do (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #12 0x00007f1b5e35d346 afr_selfheal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #13 0x00007f1b5e368c5c afr_shd_selfheal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #14 0x00007f1b5e36900b afr_shd_index_heal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #15 0x00007f1b647ffed3 syncop_mt_dir_scan (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #16 0x00007f1b5e3692b5 afr_shd_index_sweep (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #17 0x00007f1b5e369394 afr_shd_index_sweep_all (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #18 0x00007f1b5e369697 afr_shd_index_healer (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #19 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #20 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1970:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b6355050c
<a href="mailto:pthread_cond_wait@@GLIBC_2.3.2">pthread_cond_wait@@GLIBC_2.3.2</a> (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647da993 __syncbarrier_wait (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647da9e4 syncbarrier_wait (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b5e357742 afr_selfheal_unlocked_lookup_on (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b5e364204 afr_selfheal_entry_dirent (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #5 0x00007f1b5e36488a afr_selfheal_entry_do_subvol (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #6 0x00007f1b5e365077 afr_selfheal_entry_do (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #7 0x00007f1b5e3656b6 __afr_selfheal_entry (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #8 0x00007f1b5e365bba afr_selfheal_entry (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #9 0x00007f1b5e35d250 afr_selfheal_do (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #10 0x00007f1b5e35d346 afr_selfheal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #11 0x00007f1b5e368c5c afr_shd_selfheal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #12 0x00007f1b5e36900b afr_shd_index_heal (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #13 0x00007f1b647ffed3 syncop_mt_dir_scan (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #14 0x00007f1b5e3692b5 afr_shd_index_sweep (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #15 0x00007f1b5e369394 afr_shd_index_sweep_all (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #16 0x00007f1b5e369697 afr_shd_index_healer (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #17 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #18 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1974:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62dee4b0 __nanosleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b62dee38a sleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b5e36970c afr_shd_index_healer (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1976:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62dee4b0 __nanosleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b62dee38a sleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b5e36970c afr_shd_index_healer (replicate.so)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1814:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62d5fcbc __sigtimedwait (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b63554afc sigwait (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x0000000000409ed7 glusterfs_sigwaiter (glusterfsd)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1815:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62dee4b0 __nanosleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b62dee38a sleep (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647c3f5c pool_sweeper (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1816:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b635508ca
<a href="mailto:pthread_cond_timedwait@@GLIBC_2.3.2">pthread_cond_timedwait@@GLIBC_2.3.2</a> (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647d98e3 syncenv_task (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b647d9b7e syncenv_processor (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #4 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Stack trace of thread 1828:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #0 0x00007f1b62e20fe7 epoll_wait (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #1 0x00007f1b647fe855 event_dispatch_epoll_worker (libglusterfs.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #2 0x00007f1b6354a5da start_thread (libpthread.so.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #3 0x00007f1b62e20cbf __clone (libc.so.6)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:12.0pt;font-family:宋体"><o:p> </o:p></span></p>
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