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From oknet <...@git.apache.org>
Subject [GitHub] trafficserver pull request: TS-4055: InactivityCop callback SM wit...
Date Sat, 12 Dec 2015 09:55:44 GMT
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 <xuchao@gmail.com>
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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