[jira] [Commented] (TS-2704) Core dump in state_raw_http_server_open

["Sudheer Vinukonda (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TS-2704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13962217#comment-13962217 ] 

Sudheer Vinukonda commented on TS-2704:
---------------------------------------

Creating this Jira per Bryan's recommendation to seek help from the community to see if they have any clues/ideas on understanding how the unexpected event might have reached HttpSM::state_raw_http_server_open.  

> Core dump in state_raw_http_server_open
> ---------------------------------------
>
>                 Key: TS-2704
>                 URL: https://issues.apache.org/jira/browse/TS-2704
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Core
>            Reporter: Sudheer Vinukonda
>
> During production roll out of one of our properties, we observed ATS crashing with the below backtrace. Upon some investigation, we found that EVENT_INTERVAL was somehow unexpectedly being delivered to state_raw_http_server_open and is falling into the default handler resulting in a crash. While we are continuing to understand how the unexpected EVENT_INTERVAL ended up in state_raw_http_server, this protection fix was added to ignore the unexpected event.
> #0  0x0000003021a328e5 in raise () from /lib64/libc.so.6
> #1  0x0000003021a340c5 in abort () from /lib64/libc.so.6
> #2  0x00002b1ef4b9fcd9 in ink_die_die_die (retval=4878) at ink_error.cc:43
> #3  0x00002b1ef4b9ff03 in ink_fatal_va(int, const char *, typedef __va_list_tag
> __va_list_tag *) (return_code=1, message_format=<value optimized out>,
> ap=0x2b1ef7fdbbb0) at ink_error.cc:65
> #4  0x00002b1ef4ba0038 in ink_fatal (return_code=4878, message_format=0x1313
> <Address 0x1313 out of bounds>) at ink_error.cc:73
> #5  0x00002b1ef4b9e51f in _ink_assert (expression=0x0, file=0x6 <Address 0x6
> out of bounds>, line=-1) at ink_assert.cc:37
> #6  0x00000000005206ef in HttpSM::state_raw_http_server_open
> (this=0x2b1f19fbeeb0, event=2, data=0x2b1fa00066b0) at HttpSM.cc:1135
> #7  0x00000000005342d8 in HttpSM::main_handler (this=0x2b1f19fbeeb0, event=2,
> data=0x2b1fa00066b0) at HttpSM.cc:2516
> #8  0x00000000006a6c8f in handleEvent (this=0x2b1ef67c5010, e=0x2b1fa00066b0,
> calling_code=2) at I_Continuation.h:146
> #9  EThread::process_event (this=0x2b1ef67c5010, e=0x2b1fa00066b0,
> calling_code=2) at UnixEThread.cc:141
> #10 0x00000000006a7853 in EThread::execute (this=0x2b1ef67c5010) at
> UnixEThread.cc:220
> #11 0x00000000006a5b2a in spawn_thread_internal (a=0x1804b80) at Thread.cc:88
> #12 0x00002b1ef5357851 in start_thread () from /lib64/libpthread.so.0
> #13 0x0000003021ae894d in clone () from /lib64/libc.so.6



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