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https://issues.apache.org/jira/browse/TS-2750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13983369#comment-13983369
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Sudheer Vinukonda commented on TS-2750:
---------------------------------------
Here's the gdb output from the latest crash:
(gdb) bt
#0 thread_alloc_init<HttpClientSession> (this=0x28b4b60, event=<value
optimized out>, data=0x2b964c5d5908) at
../../iocore/eventsystem/I_ProxyAllocator.h:71
#1 HttpAcceptCont::mainEvent (this=0x28b4b60, event=<value optimized out>,
data=0x2b964c5d5908) at HttpAcceptCont.cc:62
#2 0x00000000004db60b in handleEvent (this=0x2b964c5d5710) at
../iocore/eventsystem/I_Continuation.h:146
#3 PluginVCCore::state_send_accept (this=0x2b964c5d5710) at PluginVC.cc:1118
#4 0x00000000004db8f3 in PluginVCCore::connect (this=0x2b964c5d5710) at
PluginVC.cc:1064
#5 0x00000000004b4c73 in TSHttpConnectWithProtoStack (addr=0x2b950c2f3824,
proto_stack=8196) at InkAPI.cc:6114
#6 0x00000000004c633b in httpConnect (this=0x2b950c2f3680) at FetchSM.cc:73
#7 FetchSM::ext_lanuch (this=0x2b950c2f3680) at FetchSM.cc:519
#8 0x00000000005d285c in spdy_fetcher_launch (req=0x2b90fe269e20,
method=TS_FETCH_METHOD_GET) at SpdyCallbacks.cc:209
#9 0x00000000005d35fe in spdy_process_syn_stream_frame (session=<value
optimized out>, type=<value optimized out>, frame=<value optimized out>,
user_data=0x2b9108026910) at SpdyCallbacks.cc:294
#10 spdy_on_ctrl_recv_callback (session=<value optimized out>, type=<value
optimized out>, frame=<value optimized out>, user_data=0x2b9108026910) at
SpdyCallbacks.cc:332
#11 0x0000000000718e30 in spdylay_session_on_syn_stream_received
(session=0x2b95ee74e490, frame=0x2b902621e9e0) at spdylay_session.c:1782
#12 0x0000000000719b37 in spdylay_session_process_ctrl_frame
(session=0x2b95ee74e490, in=0x2b902621ea50 "\200\003", inlen=<value optimized
out>) at spdylay_session.c:2246
#13 spdylay_session_mem_recv (session=0x2b95ee74e490, in=0x2b902621ea50
"\200\003", inlen=<value optimized out>) at spdylay_session.c:2805
#14 0x0000000000719d69 in spdylay_session_recv (session=0x2b95ee74e490) at
spdylay_session.c:2828
#15 0x00000000005d0cb8 in spdy_process_read (contp=<value optimized out>,
event=TS_EVENT_VCONN_READ_READY, edata=<value optimized out>) at SpdySM.cc:263
#16 spdy_default_handler (contp=<value optimized out>,
event=TS_EVENT_VCONN_READ_READY, edata=<value optimized out>) at SpdySM.cc:233
#17 0x00000000006edc07 in handleEvent (this=0x2b9138bf2090, event=<value
optimized out>) at ../../iocore/eventsystem/I_Continuation.h:146
#18 read_signal_and_update (this=0x2b9138bf2090, event=<value optimized out>)
at UnixNetVConnection.cc:216
#19 UnixNetVConnection::readSignalAndUpdate (this=0x2b9138bf2090, event=<value
optimized out>) at UnixNetVConnection.cc:998
#20 0x00000000006dde07 in SSLNetVConnection::net_read_io (this=0x2b9138bf2090,
nh=0x2b902490ec10, lthread=0x2b902490b010) at SSLNetVConnection.cc:294
#21 0x00000000006e5272 in NetHandler::mainNetEvent (this=0x2b902490ec10,
event=<value optimized out>, e=<value optimized out>) at UnixNet.cc:384
#22 0x000000000071320f in handleEvent (this=0x2b902490b010, e=0x1829d70,
calling_code=5) at I_Continuation.h:146
#23 EThread::process_event (this=0x2b902490b010, e=0x1829d70, calling_code=5)
at UnixEThread.cc:145
#24 0x0000000000713bb3 in EThread::execute (this=0x2b902490b010) at
UnixEThread.cc:269
#25 0x00000000007125ba in spawn_thread_internal (a=0x1afc750) at Thread.cc:88
#26 0x00002b900b3c0851 in start_thread () from /lib64/libpthread.so.0
#27 0x0000003296ee890d in clone () from /lib64/libc.so.6
(gdb) p v
Cannot access memory at address 0x2b964c5d5998
(gdb) p l
Cannot access memory at address 0x2b964c5d5998
(gdb) p a
$1 = <value optimized out>
> Crash with SPDY on production environment in HttpAcceptCont::mainEvent
> ----------------------------------------------------------------------
>
> Key: TS-2750
> URL: https://issues.apache.org/jira/browse/TS-2750
> Project: Traffic Server
> Issue Type: Bug
> Components: SPDY
> Reporter: Sudheer Vinukonda
> Assignee: Yunkai Zhang
> Labels: SPDY_ATS
> Fix For: sometime
>
>
> After applying patches to ts-2742 (removing the ipv4 assert) and ts-2743 (w/
> a temporary fix still using the TS API, before a permanent fix is available),
> noticed the below new core.
> NOTE: Traffic Server received Sig 11: Segmentation fault
> /home/y/bin/traffic_server - STACK TRACE:
> /lib64/libpthread.so.0(+0x329720f500)[0x2b64e0a7a500]
> /home/y/bin/traffic_server(_ZN14HttpAcceptCont9mainEventEiPv+0x147)[0x563337]
> /home/y/bin/traffic_server(_ZN12PluginVCCore17state_send_acceptEiPv+0x9b)[0x4db38b]
> /home/y/bin/traffic_server(_ZN12PluginVCCore7connectEv+0x23)[0x4db673]
> /home/y/bin/traffic_server(TSHttpConnectWithProtoStack+0x83)[0x4b4b53]
> /home/y/bin/traffic_server(_ZN7FetchSM10ext_lanuchEv+0x3b)[0x4c621b]
> /home/y/bin/traffic_server[0x5d263c]
> /home/y/bin/traffic_server(_Z26spdy_on_ctrl_recv_callbackP15spdylay_session18spdylay_frame_typeP13spdylay_framePv+0x6fe)[0x5d33de]
> /home/y/bin/traffic_server(spdylay_session_on_syn_stream_received+0xe0)[0x718c10]
> /home/y/bin/traffic_server(spdylay_session_mem_recv+0xb47)[0x719917]
> /home/y/bin/traffic_server(spdylay_session_recv+0x49)[0x719b49]
> /home/y/bin/traffic_server[0x5d0aa8]
> /home/y/bin/traffic_server(_ZN18UnixNetVConnection19readSignalAndUpdateEi+0x27)[0x6ed9e7]
> /home/y/bin/traffic_server(_ZN17SSLNetVConnection11net_read_ioEP10NetHandlerP7EThread+0xf37)[0x6ddbe7]
> /home/y/bin/traffic_server(_ZN10NetHandler12mainNetEventEiP5Event+0x1f2)[0x6e5052]
> /home/y/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x8f)[0x712fef]
> /home/y/bin/traffic_server(_ZN7EThread7executeEv+0x493)[0x713993]
> /home/y/bin/traffic_server[0x71239a]
> /lib64/libpthread.so.0(+0x3297207851)[0x2b64e0a72851]
> /lib64/libc.so.6(clone+0x6d)[0x3296ee890d]
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