GitHub user oknet opened a pull request:
https://github.com/apache/trafficserver/pull/373
TS-4055: InactivityCop callback SM with INACTIVE_TIMEOUT before
NET_EVENT_OPEN
for explain:
on a heavy load system, HttpSM create a connection to OS.
First, a TCP-SYN packet send to OS.
then, InactivityCop::check_activity callbacked before TCP-SYN/ACK send back
from OS.
then, UnixNetVConnection::mainEvent(INACTIVE_TIMEOUT) is callbacked
then, HttpSM::main_handler(INACTIVE_TIMEOUT) is callbacked
...
then, HttpSM::handle_server_setup_error(INACTIVE_TIMEOUT) is callbacked
currently, the write_vio still not set, thus segment fault.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/oknet/trafficserver patch-1
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/trafficserver/pull/373.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 #373
----
commit 37401b7eab0d030e4d4d07af63637a38c30f39db
Author: Oknet <[email protected]>
Date: 2015-12-12T09:54:05Z
TS-4055: InactivityCop callback SM with INACTIVE_TIMEOUT before
NET_EVENT_OPEN
on a heavy load system, HttpSM create a connection to OS.
First, a TCP-SYN packet send to OS.
then, InactivityCop::check_activity callbacked before TCP-SYN/ACK send back
from OS.
then, UnixNetVConnection::mainEvent(INACTIVE_TIMEOUT) is callbacked
then, HttpSM::main_handler(INACTIVE_TIMEOUT) is callbacked
...
then, HttpSM::handle_server_setup_error(INACTIVE_TIMEOUT) is callbacked
currently, the write_vio still not set, thus segment fault.
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