[Gluster-users] [Gluster-devel] Crash in glusterfs!!!
ABHISHEK PALIWAL
abhishpaliwal at gmail.com
Tue Sep 25 10:07:41 UTC 2018
Hi Pranith,
I have some questions if you can answer them:
What in LIBC exit() routine has resulted in SIGSEGV in this case ?
- Why the call trace always point to LIBC exit() in all these crash
instances on gluster ?
- Can there be any connection between LIBC exit() crash and SIGTERM
handling at early start of gluster ?
Regards,
Abhishek
On Tue, Sep 25, 2018 at 2:27 PM Pranith Kumar Karampuri <pkarampu at redhat.com>
wrote:
>
>
> On Tue, Sep 25, 2018 at 2:17 PM ABHISHEK PALIWAL <abhishpaliwal at gmail.com>
> wrote:
>
>> I don't have the step to reproduce, but its a race condition where it
>> seems cleanup_and_exit() is accessing the data structure which are not yet
>> initialised (as gluster is in starting phase), due to SIGTERM/SIGINT is
>> sent in between.
>>
>
> But the crash happened inside exit() code for which will be in libc which
> doesn't access any data structures in glusterfs.
>
>
>>
>> Regards,
>> Abhishek
>>
>> On Mon, Sep 24, 2018 at 9:11 PM Pranith Kumar Karampuri <
>> pkarampu at redhat.com> wrote:
>>
>>>
>>>
>>> On Mon, Sep 24, 2018 at 5:16 PM ABHISHEK PALIWAL <
>>> abhishpaliwal at gmail.com> wrote:
>>>
>>>> Hi Pranith,
>>>>
>>>> As we know this problem is getting triggered at startup of the glusterd
>>>> process when it received the SIGTERM.
>>>>
>>>> I think there is a problem in glusterfs code, if at startup someone
>>>> sent the SIGTERM the exit handler should not be crash instead it should
>>>> with some information.
>>>>
>>>> Could please let me know the possibility to fix it from glusterfs side?
>>>>
>>>
>>> I am not as confident as you about the RC you provided. If you could
>>> give the steps to re-create, I will be happy to confirm that the RC is
>>> correct and then I will send out the fix.
>>>
>>>
>>>>
>>>> Regards,
>>>> Abhishek
>>>>
>>>> On Mon, Sep 24, 2018 at 3:12 PM Pranith Kumar Karampuri <
>>>> pkarampu at redhat.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Mon, Sep 24, 2018 at 2:09 PM ABHISHEK PALIWAL <
>>>>> abhishpaliwal at gmail.com> wrote:
>>>>>
>>>>>> Could you please let me know about the bug in libc which you are
>>>>>> talking.
>>>>>>
>>>>>
>>>>> No, I mean, if you give the steps to reproduce, we will be able to pin
>>>>> point if the issue is with libc or glusterfs.
>>>>>
>>>>>
>>>>>>
>>>>>> On Mon, Sep 24, 2018 at 2:01 PM Pranith Kumar Karampuri <
>>>>>> pkarampu at redhat.com> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Sep 24, 2018 at 1:57 PM ABHISHEK PALIWAL <
>>>>>>> abhishpaliwal at gmail.com> wrote:
>>>>>>>
>>>>>>>> If you see the source code in cleanup_and_exit() we are getting the
>>>>>>>> SIGSEGV crash when 'exit(0)' is triggered.
>>>>>>>>
>>>>>>>
>>>>>>> yes, that is what I was mentioning earlier. It is crashing in libc.
>>>>>>> So either there is a bug in libc (glusterfs actually found 1 bug so far in
>>>>>>> libc, so I wouldn't rule out that possibility) or there is something that
>>>>>>> is happening in glusterfs which is leading to the problem.
>>>>>>> Valgrind/address-sanitizer would help find where the problem could be in
>>>>>>> some cases, so before reaching out libc developers, it is better to figure
>>>>>>> out where the problem is. Do you have steps to recreate it?
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Sep 24, 2018 at 1:41 PM Pranith Kumar Karampuri <
>>>>>>>> pkarampu at redhat.com> wrote:
>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Sep 24, 2018 at 1:36 PM ABHISHEK PALIWAL <
>>>>>>>>> abhishpaliwal at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi Sanju,
>>>>>>>>>>
>>>>>>>>>> Do you have any update on this?
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> This seems to happen while the process is dying, in libc. I am not
>>>>>>>>> completely sure if there is anything glusterfs is contributing to it from
>>>>>>>>> the bt at the moment. Do you have any steps to re-create this problem? It
>>>>>>>>> is probably better to run the steps with valgrind/address-sanitizer and see
>>>>>>>>> if it points to the problem in glusterfs.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Regards,
>>>>>>>>>> Abhishek
>>>>>>>>>>
>>>>>>>>>> On Fri, Sep 21, 2018 at 4:07 PM ABHISHEK PALIWAL <
>>>>>>>>>> abhishpaliwal at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi Sanju,
>>>>>>>>>>>
>>>>>>>>>>> Output of 't a a bt full'
>>>>>>>>>>>
>>>>>>>>>>> (gdb) t a a bt full
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Thread 7 (LWP 1743):
>>>>>>>>>>>
>>>>>>>>>>> #0 0x00003fffa3ea7e88 in __lll_lock_wait (futex=0x0, private=0)
>>>>>>>>>>> at lowlevellock.c:43
>>>>>>>>>>>
>>>>>>>>>>> r4 = 128
>>>>>>>>>>>
>>>>>>>>>>> r7 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg2 = 128
>>>>>>>>>>>
>>>>>>>>>>> r5 = 2
>>>>>>>>>>>
>>>>>>>>>>> r8 = 1
>>>>>>>>>>>
>>>>>>>>>>> r0 = 221
>>>>>>>>>>>
>>>>>>>>>>> r3 = 0
>>>>>>>>>>>
>>>>>>>>>>> r6 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg1 = 0
>>>>>>>>>>>
>>>>>>>>>>> __err = 221
>>>>>>>>>>>
>>>>>>>>>>> __ret = 0
>>>>>>>>>>>
>>>>>>>>>>> #1 0x00003fffa3e9ef64 in __GI___pthread_mutex_lock
>>>>>>>>>>> (mutex=0x100272a8) at ../nptl/pthread_mutex_lock.c:81
>>>>>>>>>>>
>>>>>>>>>>> __futex = 0x100272a8
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
>>>>>>>>>>>
>>>>>>>>>>> type = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> id = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #2 0x00003fffa3f6ce8c in _gf_msg (domain=0x3fff98006c90
>>>>>>>>>>> "c_glusterfs-client-0", file=0x3fff9fb34de0 "client.c",
>>>>>>>>>>> function=0x3fff9fb34cd8 <__FUNCTION__.18849> "notify",
>>>>>>>>>>>
>>>>>>>>>>> line=<optimized out>, level=<optimized out>,
>>>>>>>>>>> errnum=<optimized out>, trace=<optimized out>, msgid=114020,
>>>>>>>>>>>
>>>>>>>>>>> fmt=0x3fff9fb35350 "parent translators are ready, attempting
>>>>>>>>>>> connect on transport") at logging.c:2058
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> msgstr = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ap = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> this = 0x3fff980061f0
>>>>>>>>>>>
>>>>>>>>>>> ctx = 0x10027010
>>>>>>>>>>>
>>>>>>>>>>> callstr = '\000' <repeats 4095 times>
>>>>>>>>>>>
>>>>>>>>>>> passcallstr = 0
>>>>>>>>>>>
>>>>>>>>>>> log_inited = 0
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "_gf_msg"
>>>>>>>>>>>
>>>>>>>>>>> #3 0x00003fff9fb084ac in notify (this=0x3fff980061f0,
>>>>>>>>>>> event=<optimized out>, data=0x3fff98008c50) at client.c:2116
>>>>>>>>>>>
>>>>>>>>>>> conf = 0x3fff98056dd0
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "notify"
>>>>>>>>>>>
>>>>>>>>>>> #4 0x00003fffa3f68ca0 in xlator_notify (xl=0x3fff980061f0,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at xlator.c:491
>>>>>>>>>>>
>>>>>>>>>>> old_THIS = 0x3fff98008c50
>>>>>>>>>>>
>>>>>>>>>>> ret = 0
>>>>>>>>>>>
>>>>>>>>>>> #5 0x00003fffa3f87700 in default_notify (this=0x3fff98008c50,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at defaults.c:2302
>>>>>>>>>>>
>>>>>>>>>>> list = 0x3fff9800a340
>>>>>>>>>>>
>>>>>>>>>>> #6 0x00003fff9fac922c in afr_notify (this=0x3fff98008c50,
>>>>>>>>>>> event=1, data=0x3fff9800a4c0, data2=<optimized out>) at afr-common.c:3967
>>>>>>>>>>>
>>>>>>>>>>> priv = 0x3fff98010050
>>>>>>>>>>>
>>>>>>>>>>> i = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> up_children = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> down_children = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> propagate = 1
>>>>>>>>>>>
>>>>>>>>>>> had_heard_from_all = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ---Type <return> to continue, or q <return> to quit---
>>>>>>>>>>>
>>>>>>>>>>> have_heard_from_all = 0
>>>>>>>>>>>
>>>>>>>>>>> idx = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ret = 0
>>>>>>>>>>>
>>>>>>>>>>> call_psh = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> input = 0x0
>>>>>>>>>>>
>>>>>>>>>>> output = 0x0
>>>>>>>>>>>
>>>>>>>>>>> had_quorum = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> has_quorum = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "afr_notify"
>>>>>>>>>>>
>>>>>>>>>>> #7 0x00003fff9fad4994 in notify (this=<optimized out>,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at afr.c:38
>>>>>>>>>>>
>>>>>>>>>>> ret = -1
>>>>>>>>>>>
>>>>>>>>>>> ap = 0x3fffa034cc58 ""
>>>>>>>>>>>
>>>>>>>>>>> data2 = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #8 0x00003fffa3f68ca0 in xlator_notify (xl=0x3fff98008c50,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at xlator.c:491
>>>>>>>>>>>
>>>>>>>>>>> old_THIS = 0x3fff9800a4c0
>>>>>>>>>>>
>>>>>>>>>>> ret = 0
>>>>>>>>>>>
>>>>>>>>>>> #9 0x00003fffa3f87700 in default_notify (this=0x3fff9800a4c0,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at defaults.c:2302
>>>>>>>>>>>
>>>>>>>>>>> list = 0x3fff9800b710
>>>>>>>>>>>
>>>>>>>>>>> #10 0x00003fff9fa6b1e4 in notify (this=<optimized out>,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at io-stats.c:3064
>>>>>>>>>>>
>>>>>>>>>>> ret = 0
>>>>>>>>>>>
>>>>>>>>>>> args = {type = IOS_DUMP_TYPE_NONE, u = {logfp = 0x0,
>>>>>>>>>>> dict = 0x0}}
>>>>>>>>>>>
>>>>>>>>>>> op = 0
>>>>>>>>>>>
>>>>>>>>>>> list_cnt = 0
>>>>>>>>>>>
>>>>>>>>>>> throughput = 0
>>>>>>>>>>>
>>>>>>>>>>> time = 0
>>>>>>>>>>>
>>>>>>>>>>> is_peek = _gf_false
>>>>>>>>>>>
>>>>>>>>>>> ap = 0x3fffa034ce68 ""
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "notify"
>>>>>>>>>>>
>>>>>>>>>>> #11 0x00003fffa3f68ca0 in xlator_notify (xl=0x3fff9800a4c0,
>>>>>>>>>>> event=<optimized out>, data=<optimized out>) at xlator.c:491
>>>>>>>>>>>
>>>>>>>>>>> old_THIS = 0x3fffa402d290 <global_xlator>
>>>>>>>>>>>
>>>>>>>>>>> ret = 0
>>>>>>>>>>>
>>>>>>>>>>> #12 0x00003fffa3fbd560 in glusterfs_graph_parent_up
>>>>>>>>>>> (graph=<optimized out>) at graph.c:440
>>>>>>>>>>>
>>>>>>>>>>> trav = 0x3fff9800a4c0
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #13 0x00003fffa3fbdb90 in glusterfs_graph_activate
>>>>>>>>>>> (graph=0x3fff98000af0, ctx=0x10027010) at graph.c:688
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "glusterfs_graph_activate"
>>>>>>>>>>>
>>>>>>>>>>> #14 0x000000001000a49c in glusterfs_process_volfp
>>>>>>>>>>> (ctx=0x10027010, fp=0x3fff98001cd0) at glusterfsd.c:2221
>>>>>>>>>>>
>>>>>>>>>>> graph = 0x3fff98000af0
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> trav = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = <error reading variable __FUNCTION__
>>>>>>>>>>> (Cannot access memory at address 0x10010ec0)>
>>>>>>>>>>>
>>>>>>>>>>> #15 0x000000001000fd08 in mgmt_getspec_cbk (req=<optimized out>,
>>>>>>>>>>> iov=<optimized out>, count=<optimized out>, myframe=0x3fffa2bea06c) at
>>>>>>>>>>> glusterfsd-mgmt.c:1561
>>>>>>>>>>>
>>>>>>>>>>> rsp = {op_ret = 1059, op_errno = 0,
>>>>>>>>>>>
>>>>>>>>>>> spec = 0x3fff980018a0 "volume
>>>>>>>>>>> c_glusterfs-client-0\n type protocol/client\n option password
>>>>>>>>>>> 5fd8d83d-99f3-4630-97c6-965d7a8ead62\n option username
>>>>>>>>>>> e65687aa-e135-445e-8778-48bb8fb19640\n option transport-type tcp\n
>>>>>>>>>>> "..., xdata = {xdata_len = 0, xdata_val = 0x0}}
>>>>>>>>>>>
>>>>>>>>>>> ---Type <return> to continue, or q <return> to quit---
>>>>>>>>>>>
>>>>>>>>>>> frame = 0x3fffa2bea06c
>>>>>>>>>>>
>>>>>>>>>>> ctx = 0x10027010
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> size = 1059
>>>>>>>>>>>
>>>>>>>>>>> tmpfp = 0x3fff98001cd0
>>>>>>>>>>>
>>>>>>>>>>> volfilebuf = 0x0
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = <error reading variable __FUNCTION__
>>>>>>>>>>> (Cannot access memory at address 0x10013570)>
>>>>>>>>>>>
>>>>>>>>>>> #16 0x00003fffa3f21ec4 in rpc_clnt_handle_reply
>>>>>>>>>>> (clnt=0x10089020, pollin=0x3fff98001760) at rpc-clnt.c:775
>>>>>>>>>>>
>>>>>>>>>>> conn = 0x10089050
>>>>>>>>>>>
>>>>>>>>>>> saved_frame = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> req = 0x1008931c
>>>>>>>>>>>
>>>>>>>>>>> xid = 1
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "rpc_clnt_handle_reply"
>>>>>>>>>>>
>>>>>>>>>>> #17 0x00003fffa3f223d0 in rpc_clnt_notify (trans=<optimized
>>>>>>>>>>> out>, mydata=0x10089050, event=<optimized out>, data=<optimized out>) at
>>>>>>>>>>> rpc-clnt.c:933
>>>>>>>>>>>
>>>>>>>>>>> conn = 0x10089050
>>>>>>>>>>>
>>>>>>>>>>> clnt = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ret = -1
>>>>>>>>>>>
>>>>>>>>>>> req_info = 0x0
>>>>>>>>>>>
>>>>>>>>>>> pollin = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> clnt_mydata = 0x0
>>>>>>>>>>>
>>>>>>>>>>> old_THIS = 0x3fffa402d290 <global_xlator>
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "rpc_clnt_notify"
>>>>>>>>>>>
>>>>>>>>>>> #18 0x00003fffa3f1d4fc in rpc_transport_notify (this=<optimized
>>>>>>>>>>> out>, event=<optimized out>, data=<optimized out>) at rpc-transport.c:546
>>>>>>>>>>>
>>>>>>>>>>> ret = -1
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "rpc_transport_notify"
>>>>>>>>>>>
>>>>>>>>>>> #19 0x00003fffa0401d44 in socket_event_poll_in (this=this at entry=0x1008ab80)
>>>>>>>>>>> at socket.c:2236
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> pollin = 0x3fff98001760
>>>>>>>>>>>
>>>>>>>>>>> priv = 0x1008b820
>>>>>>>>>>>
>>>>>>>>>>> #20 0x00003fffa040489c in socket_event_handler (fd=<optimized
>>>>>>>>>>> out>, idx=<optimized out>, data=0x1008ab80, poll_in=<optimized out>,
>>>>>>>>>>> poll_out=<optimized out>, poll_err=<optimized out>)
>>>>>>>>>>>
>>>>>>>>>>> at socket.c:2349
>>>>>>>>>>>
>>>>>>>>>>> this = 0x1008ab80
>>>>>>>>>>>
>>>>>>>>>>> priv = 0x1008b820
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "socket_event_handler"
>>>>>>>>>>>
>>>>>>>>>>> #21 0x00003fffa3fe2874 in event_dispatch_epoll_handler
>>>>>>>>>>> (event=0x3fffa034d6a0, event_pool=0x10045bc0) at event-epoll.c:575
>>>>>>>>>>>
>>>>>>>>>>> handler = @0x3fffa041f620: 0x3fffa04046f0
>>>>>>>>>>> <socket_event_handler>
>>>>>>>>>>>
>>>>>>>>>>> gen = 1
>>>>>>>>>>>
>>>>>>>>>>> slot = 0x1007cd80
>>>>>>>>>>>
>>>>>>>>>>> data = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ret = -1
>>>>>>>>>>>
>>>>>>>>>>> fd = 9
>>>>>>>>>>>
>>>>>>>>>>> ev_data = 0x3fffa034d6a8
>>>>>>>>>>>
>>>>>>>>>>> idx = 1
>>>>>>>>>>>
>>>>>>>>>>> #22 event_dispatch_epoll_worker (data=0x1008bd50) at
>>>>>>>>>>> event-epoll.c:678
>>>>>>>>>>>
>>>>>>>>>>> ---Type <return> to continue, or q <return> to quit---
>>>>>>>>>>>
>>>>>>>>>>> event = {events = 1, data = {ptr = 0x100000001, fd = 1,
>>>>>>>>>>> u32 = 1, u64 = 4294967297}}
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ev_data = 0x1008bd50
>>>>>>>>>>>
>>>>>>>>>>> event_pool = 0x10045bc0
>>>>>>>>>>>
>>>>>>>>>>> myindex = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> timetodie = 0
>>>>>>>>>>>
>>>>>>>>>>> __FUNCTION__ = "event_dispatch_epoll_worker"
>>>>>>>>>>>
>>>>>>>>>>> #23 0x00003fffa3e9bb30 in start_thread (arg=0x3fffa034e160) at
>>>>>>>>>>> pthread_create.c:462
>>>>>>>>>>>
>>>>>>>>>>> pd = 0x3fffa034e160
>>>>>>>>>>>
>>>>>>>>>>> now = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> unwind_buf = {cancel_jmp_buf = {{jmp_buf =
>>>>>>>>>>> {2380233324717718430, 70367199403008, 2380233324703897146, 0, 0,
>>>>>>>>>>> 70367128645632, 70367137030688, 8388608, 70367199363104, 269008208,
>>>>>>>>>>>
>>>>>>>>>>> 70368094386592, 70367199388632, 70367200825640,
>>>>>>>>>>> 3, 0, 70367199388648, 70368094386240, 70368094386296, 4001536,
>>>>>>>>>>> 70367199364120, 70367137027904, -3187653596,
>>>>>>>>>>>
>>>>>>>>>>> 0 <repeats 42 times>}, mask_was_saved = 0}},
>>>>>>>>>>> priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
>>>>>>>>>>> canceltype = 0}}}
>>>>>>>>>>>
>>>>>>>>>>> not_first_call = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> pagesize_m1 = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> sp = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> freesize = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "start_thread"
>>>>>>>>>>>
>>>>>>>>>>> #24 0x00003fffa3de60fc in .__clone () at
>>>>>>>>>>> ../sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S:96
>>>>>>>>>>>
>>>>>>>>>>> No locals.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Thread 6 (LWP 1735):
>>>>>>>>>>>
>>>>>>>>>>> #0 0x00003fffa3ea3ccc in __pthread_cond_timedwait
>>>>>>>>>>> (cond=0x10059a98, mutex=0x10059a70, abstime=0x3fffa141f670) at
>>>>>>>>>>> pthread_cond_timedwait.c:198
>>>>>>>>>>>
>>>>>>>>>>> r4 = 393
>>>>>>>>>>>
>>>>>>>>>>> r7 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg5 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg2 = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> r5 = 2
>>>>>>>>>>>
>>>>>>>>>>> r8 = 4294967295
>>>>>>>>>>>
>>>>>>>>>>> arg6 = 4294967295
>>>>>>>>>>>
>>>>>>>>>>> arg3 = 2
>>>>>>>>>>>
>>>>>>>>>>> r0 = 221
>>>>>>>>>>>
>>>>>>>>>>> r3 = 516
>>>>>>>>>>>
>>>>>>>>>>> r6 = 70367154665072
>>>>>>>>>>>
>>>>>>>>>>> arg4 = 70367154665072
>>>>>>>>>>>
>>>>>>>>>>> arg1 = 268802716
>>>>>>>>>>>
>>>>>>>>>>> __err = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> futex_val = 2
>>>>>>>>>>>
>>>>>>>>>>> buffer = {__routine = @0x3fffa3ec0b50: 0x3fffa3ea3400
>>>>>>>>>>> <__condvar_cleanup>, __arg = 0x3fffa141f540, __canceltype = 0, __prev = 0x0}
>>>>>>>>>>>
>>>>>>>>>>> cbuffer = {oldtype = 0, cond = 0x10059a98, mutex =
>>>>>>>>>>> 0x10059a70, bc_seq = 0}
>>>>>>>>>>>
>>>>>>>>>>> result = 0
>>>>>>>>>>>
>>>>>>>>>>> pshared = 0
>>>>>>>>>>>
>>>>>>>>>>> pi_flag = 0
>>>>>>>>>>>
>>>>>>>>>>> err = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> val = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ---Type <return> to continue, or q <return> to quit---
>>>>>>>>>>>
>>>>>>>>>>> seq = 0
>>>>>>>>>>>
>>>>>>>>>>> #1 0x00003fffa3fc0e74 in syncenv_task (proc=0x10053eb0) at
>>>>>>>>>>> syncop.c:607
>>>>>>>>>>>
>>>>>>>>>>> env = 0x10053eb0
>>>>>>>>>>>
>>>>>>>>>>> task = 0x0
>>>>>>>>>>>
>>>>>>>>>>> sleep_till = {tv_sec = 1536845230, tv_nsec = 0}
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #2 0x00003fffa3fc1cdc in syncenv_processor (thdata=0x10053eb0)
>>>>>>>>>>> at syncop.c:699
>>>>>>>>>>>
>>>>>>>>>>> env = 0x10053eb0
>>>>>>>>>>>
>>>>>>>>>>> proc = 0x10053eb0
>>>>>>>>>>>
>>>>>>>>>>> task = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #3 0x00003fffa3e9bb30 in start_thread (arg=0x3fffa1420160) at
>>>>>>>>>>> pthread_create.c:462
>>>>>>>>>>>
>>>>>>>>>>> pd = 0x3fffa1420160
>>>>>>>>>>>
>>>>>>>>>>> now = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> unwind_buf = {cancel_jmp_buf = {{jmp_buf =
>>>>>>>>>>> {2380233324731669406, 70367199403008, 2380233324703897146, 0, 0,
>>>>>>>>>>> 70367146283008, 70367154668064, 8388608, 70367199363104, 268779184,
>>>>>>>>>>>
>>>>>>>>>>> 268779184, 70367199388632, 70367200820192, 3, 0,
>>>>>>>>>>> 70367199388648, 70368094386080, 70368094386136, 4001536, 70367199364120,
>>>>>>>>>>> 70367154665280, -3187653564,
>>>>>>>>>>>
>>>>>>>>>>> 0 <repeats 42 times>}, mask_was_saved = 0}},
>>>>>>>>>>> priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
>>>>>>>>>>> canceltype = 0}}}
>>>>>>>>>>>
>>>>>>>>>>> not_first_call = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> pagesize_m1 = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> sp = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> freesize = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "start_thread"
>>>>>>>>>>>
>>>>>>>>>>> #4 0x00003fffa3de60fc in .__clone () at
>>>>>>>>>>> ../sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S:96
>>>>>>>>>>>
>>>>>>>>>>> No locals.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Thread 5 (LWP 1746):
>>>>>>>>>>>
>>>>>>>>>>> #0 0x00003fffa3ea7e38 in __lll_lock_wait (futex=0x100272a8,
>>>>>>>>>>> private=<optimized out>) at lowlevellock.c:46
>>>>>>>>>>>
>>>>>>>>>>> r4 = 128
>>>>>>>>>>>
>>>>>>>>>>> r7 = 0
>>>>>>>>>>>
>>>>>>>>>>> r5 = 2
>>>>>>>>>>>
>>>>>>>>>>> r8 = 1
>>>>>>>>>>>
>>>>>>>>>>> arg3 = 2
>>>>>>>>>>>
>>>>>>>>>>> r0 = 221
>>>>>>>>>>>
>>>>>>>>>>> r3 = 512
>>>>>>>>>>>
>>>>>>>>>>> r6 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg4 = 0
>>>>>>>>>>>
>>>>>>>>>>> arg1 = 268595880
>>>>>>>>>>>
>>>>>>>>>>> __err = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> __ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #1 0x00003fffa3e9ef64 in __GI___pthread_mutex_lock
>>>>>>>>>>> (mutex=0x100272a8) at ../nptl/pthread_mutex_lock.c:81
>>>>>>>>>>>
>>>>>>>>>>> __futex = 0x100272a8
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
>>>>>>>>>>>
>>>>>>>>>>> type = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> id = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> #2 0x00003fffa3f6ce8c in _gf_msg (domain=0x3fffa4009e38
>>>>>>>>>>> "epoll", file=0x3fffa4009e28 "event-epoll.c", function=0x3fffa4009db8
>>>>>>>>>>> <__FUNCTION__.8510> "event_dispatch_epoll_worker",
>>>>>>>>>>>
>>>>>>>>>>> line=<optimized out>, level=<optimized out>,
>>>>>>>>>>> errnum=<optimized out>, trace=<optimized out>, msgid=101190,
>>>>>>>>>>> fmt=0x3fffa4009f48 "Started thread with index %d") at logging.c:2058
>>>>>>>>>>>
>>>>>>>>>>> ret = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ---Type <return> to continue, or q <return> to quit---
>>>>>>>>>>>
>>>>>>>>>>> msgstr = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> ap = <optimized out>
>>>>>>>>>>>
>>>>>>>>>>> this = 0x3fffa402d290 <global_xlator>
>>>>>>>>>>>
>>>>>>>>>>> ctx = 0x10027010
>>>>>>>>>>>
>>>>>>>>>>> callstr = '\000' <repeats 4095 times>
>>>>>>>>>>>
>>>>>>>>>>> passcallstr = 0
>>>>>>>>>>>
>>>>>>>>>>> log_inited = 0
>>>>>>>>>>>
>>>>>>>>>>> __PRETTY_FUNCTION__ = "_gf_msg"
>>>>>>>>>>>
>>>>>>>>>>> #3 0x00003fffa3fe265c in event_dispatch_epoll_worker
>>>>>>>>>>> (data=0x3fff9802ffd0) at event-epoll.c:631
>>>>>>>>>>>
>>>>>>>>>>> event = {events = 0, data = {ptr = 0x0, fd = 0, u32 = 0,
>>>>>>>>>>> u64 = 0}}
>>>>>>>>>>>
>>>>>>>>>>> ret = -1
>>>>>>>>>>> <p
>>>>>>>>>>> class="m_-5579429898042230588m_3924698905562214407m_-746409795816116485m_5332120683958399093m_6916172682174822483m_-2822652243729768044m_3647924144486264624m_-2182742917493080152m_552285968122610423m_3610462426325886337gmail-x_MsoNormal"
>>>>>>>>>>> style="margin:0cm 0cm
>>>>>>>>>>> 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif;color:rgb(0,0,0)
>>>>>>>>>>>
>>>>>>>>>>
--
Regards
Abhishek Paliwal
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