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https://issues.apache.org/jira/browse/TS-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13762691#comment-13762691
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Leif Hedstrom commented on TS-2193:
-----------------------------------
[~tommylee] Are you running any plugins, that might be causing this issue with
the shared sessions per thread? I know there are issues with the shared issues
when it's not an ET_NET thread, but this bug post has so many variables it's
hard to understand exactly what is triggering it.
So, any information on plugins, if you have any other configuration changes or
anything like that.
[~jplevyak]: Maybe I should see if we can add an assert() if we try to acquire
a shared session from a thread that is not a ET_NET thread?
> Trafficserver 4.1 Crash with proxy.config.dns.dedicated_thread = 1
> ------------------------------------------------------------------
>
> Key: TS-2193
> URL: https://issues.apache.org/jira/browse/TS-2193
> Project: Traffic Server
> Issue Type: Bug
> Components: DNS
> Affects Versions: 4.1.0
> Reporter: Tommy Lee
> Fix For: 4.1.0
>
>
> Hi all,
> I've tried to enable DNS Thread without luck.
> When i set proxy.config.dns.dedicated_thread to 1, it crashes with the
> information below.
> The ATS is working in Forward Proxy mode.
> Thanks in advance.
> --------------------------------------
> traffic.out
> NOTE: Traffic Server received Sig 11: Segmentation fault
> /usr/local/cache-4.1/bin/traffic_server - STACK TRACE:
> /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x2af714875cb0]
> /usr/local/cache-4.1/bin/traffic_server(_Z16_acquire_sessionP13SessionBucketPK8sockaddrR7INK_MD5P6HttpSM+0x52)[0x51dac2]
> /usr/local/cache-4.1/bin/traffic_server(_ZN18HttpSessionManager15acquire_sessionEP12ContinuationPK8sockaddrPKcP17HttpClientSessionP6HttpSM+0x3d1)[0x51e0f1]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM19do_http_server_openEb+0x30c)[0x53644c]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM14set_next_stateEv+0x6a0)[0x537560]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM14set_next_stateEv+0x57e)[0x53743e]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM14set_next_stateEv+0x57e)[0x53743e]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM27state_hostdb_reverse_lookupEiPv+0xb9)[0x526b99]
> /usr/local/cache-4.1/bin/traffic_server(_ZN6HttpSM12main_handlerEiPv+0xd8)[0x531be8]
> /usr/local/cache-4.1/bin/traffic_server[0x5d7c8a]
> /usr/local/cache-4.1/bin/traffic_server(_ZN18HostDBContinuation8dnsEventEiP7HostEnt+0x821)[0x5decd1]
> /usr/local/cache-4.1/bin/traffic_server(_ZN8DNSEntry9postEventEiP5Event+0x44)[0x5f7a94]
> /usr/local/cache-4.1/bin/traffic_server[0x5fd382]
> /usr/local/cache-4.1/bin/traffic_server(_ZN10DNSHandler8recv_dnsEiP5Event+0x852)[0x5fee72]
> /usr/local/cache-4.1/bin/traffic_server(_ZN10DNSHandler9mainEventEiP5Event+0x14)[0x5ffd94]
> /usr/local/cache-4.1/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x91)[0x6b2a41]
> /usr/local/cache-4.1/bin/traffic_server(_ZN7EThread7executeEv+0x514)[0x6b3534]
> /usr/local/cache-4.1/bin/traffic_server[0x6b17ea]
> /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x2af71486de9a]
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x2af71558dccd]
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