[TS-2193] Trafficserver 4.1 Crash with proxy.config.dns.dedicated_thread = 1

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 4.1.2
• Component/s: DNS
• Labels: Crash
• Assignee: Unassigned
• Reporter: Tommy Lee
• Created: 09/Sep/13 16:28
• Updated: 11/Oct/16 16:07
• Resolved: 11/Oct/16 16:07

Description

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]

Issue Links

• is duplicated by: TS-3882 Crash caused by enabling dedicated DNS thread
• is related to: TS-1590 use_remap_processor crashes if share_server_sessions = 2