[TS-3792] Pointing proxy.config.dns.resolv_conf at an empty (or nonexistant) file causes segmentation faults on first DNS query

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.1.0
• Component/s: DNS
• Assignee: Brian Geffon
• Reporter: Thomas Jackson
• Created: 23/Jul/15 00:36
• Updated: 11/May/16 17:10
• Resolved: 28/Aug/15 19:57

Description

[connect] ERROR (main_socket_fd 9): Connection refused
[Jul 22 17:04:34.553] {0x2b293f16b960} ERROR: wrote crash log to /var/log/trafficserver/crash-2015-07-22-170434.log
traffic_server: Floating point exception (Integer divide by zero [0x6d8e5a])traffic_server - STACK TRACE: 
traffic_server(_Z19crash_logger_invokeiP7siginfoPv+0xc3)[0x50994e]
/lib64/libpthread.so.0[0x340d40f710]
traffic_server[0x6d8e5a]
traffic_server(_ZN8DNSEntry9mainEventEiP5Event+0x3d3)[0x6d9a95]
traffic_server(_ZN12Continuation11handleEventEiPv+0x6c)[0x50c838]
traffic_server(_ZN12DNSProcessor5getbyEPKciiP12ContinuationRKNS_7OptionsE+0x1c1)[0x6d9e45]
traffic_server(_ZN12DNSProcessor13gethostbynameEP12ContinuationPKcRKNS_7OptionsE+0x44)[0x6ccb30]
traffic_server(_ZN18HostDBContinuation6do_dnsEv+0x290)[0x6cadbc]
traffic_server(_ZN18HostDBContinuation10probeEventEiP5Event+0x2bc)[0x6ca8a6]
traffic_server(_ZN12Continuation11handleEventEiPv+0x6c)[0x50c838]
traffic_server(_ZN7EThread13process_eventEP5Eventi+0xc6)[0x786d56]
traffic_server(_ZN7EThread7executeEv+0xa0)[0x786f24]
traffic_server(main+0x1246)[0x53da75]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x340cc1ed5d]
traffic_server[0x4f47a9]

Floating point exception (core dumped)