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https://issues.apache.org/jira/browse/TS-3792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14642266#comment-14642266
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ASF GitHub Bot commented on TS-3792:
------------------------------------
GitHub user zizhong opened a pull request:
https://github.com/apache/trafficserver/pull/262
TS-3792: Crash with non-existant or missing resolve_conf
Fix the bug issue TS-3792: Pointing proxy.config.dns.resolv_conf at an
empty (or nonexistant) file causes segmentation faults on first DNS query. If
the user specified resolve conf doesn't work, use the default resolve conf
instead. If the default resolve conf doesn't work neither, abort the traffic
server.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zizhong/trafficserver fixBugTS3792
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/trafficserver/pull/262.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #262
----
commit 3aca5e4cb50af831e4e4174ca573fddd9877fb33
Author: Zizhong Zhang <[email protected]>
Date: 2015-07-27T04:46:52Z
TS-3792: Pointing proxy.config.dns.resolv_conf at an empty (or nonexistant)
file causes crashes.
----
> Pointing proxy.config.dns.resolv_conf at an empty (or nonexistant) file
> causes segmentation faults on first DNS query
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: TS-3792
> URL: https://issues.apache.org/jira/browse/TS-3792
> Project: Traffic Server
> Issue Type: Bug
> Reporter: Thomas Jackson
> Assignee: Brian Geffon
>
> {code}
> [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)
> {code}
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