https://issues.apache.org/bugzilla/show_bug.cgi?id=55797

            Bug ID: 55797
           Summary: Tomcat 7.0.47 crashes using server jvm.dll and APR at
                    ntdll!ZwGetContextThread+0xa
           Product: Tomcat Native
           Version: 1.1.29
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Library
          Assignee: dev@tomcat.apache.org
          Reporter: kmash...@yahoo.com

Since recent Windows patches perhaps in combination with Tomcat 7.0.41 and Java
1.7.0_45 patches, our Tomcat instance is crashing once per week or more, 3
times so far in the past 2 weeks, each time generating a similar Windows mdmp
file the size of JVM memory and stack trace to ntdll!ZwGetContextThread+0xa.

I'm not sure if this is really a JVM or tcnative issue so I'm posting to both
Oracle/Java and Apache/Tomcat in case anyone has similar problems.

Debug session time: Tue Nov 19 08:48:46.000 2013 (UTC - 5:00)
System Uptime: 2 days 3:05:00.493
Process Uptime: 0 days 0:00:26.000
............................................................
This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(510.96c): Access violation - code c0000005 (first/second chance not available)
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for
ntdll.dll - 
ntdll!ZwGetContextThread+0xa:
00000000`77271f8a c3              ret

Noted in the Stack Trace:
ntdll!ZwGetContextThread+0xa
ntdll!RtlFindActivationContextSectionString+0x1d6

Environment:
Tomcat version 7.0.47
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)
Windows 2008 R2 Standard Build 7601
Intel Xeon CPU E5405 2 GHz 2 CPU x 4 cores each

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