RFR: 8049695: nsk/jdb/options/connect/connect003 fails with "Launched jdb could not attach to debuggee during 300000 milliseconds"

[Alex Menkov]

Hi all,

Please review a small fix for
https://bugs.openjdk.java.net/browse/JDK-8049695
webrev: http://cr.openjdk.java.net/~amenkov/shmem_long_name/webrev_open/
Root cause of the issue is jbd hungs as a result of the buffer overflow.

In the beginning of the shmemBase.c:

#define MAX_IPC_PREFIX 50   /* user-specified or generated name for */
                            /* shared memory seg and prefix for other 
IPC */
#define MAX_IPC_SUFFIX 25   /* suffix to shmem name for other IPC names */
#define MAX_IPC_NAME   (MAX_IPC_PREFIX + MAX_IPC_SUFFIX)

buffer (char prefix[]) in function createStream is used to generate base 
name for mutex/events, so MAX_IPC_PREFIX is not big enough.

--alex