[jira] [Updated] (TS-1035) EventProcessor::spawn_thread doesn't check that there is enough event threads and segfaults

["Brian Geffon (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-1035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brian Geffon updated TS-1035:
-----------------------------

    Attachment: UnixEventProcessor.patch
    
> EventProcessor::spawn_thread doesn't check that there is enough event threads and segfaults
> -------------------------------------------------------------------------------------------
>
>                 Key: TS-1035
>                 URL: https://issues.apache.org/jira/browse/TS-1035
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 3.0.1
>            Reporter: Brian Geffon
>         Attachments: UnixEventProcessor.patch
>
>
> The easiest way to see this bug is to use several hundred ports with accept threads turned on. The bug exists because in I_EventProcessor.h there is a hard coded limit of 512 event threads and there is no check in spawn_thread that you haven't exceeded that limit so it will result in a segfault if you're creating too many threads. From what I can tell the best solution is an assertion that you haven't exceeded MAX_EVENT_THREADS.
> Patch is included.

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