---
** [tickets:#1694] mds-tcp: application getting segmentation if message size >
65535 **
**Status:** accepted
**Milestone:** 5.0.FC
**Created:** Mon Mar 07, 2016 02:22 PM UTC by A V Mahesh (AVM)
**Last Updated:** Mon Mar 07, 2016 02:22 PM UTC
**Owner:** A V Mahesh (AVM)
After the changes of MDS enhancement ticket #1522,
MDS TCP application getting segmentation if application trying to send messge
size > 65535
Bug :
MDS:TCP code changes included the node name as a part MDS TCP message header,
but the TCP fragment size macro was not tuned according to new MDS user data
size
( need to less HOST_NAME_MAX size from default MDS_DIRECT_BUF_MAXSIZE)
Patch will be published soon.
Steps to reproduce :
When we tested this I have done the following:
1.
Make sure there is a clean default branch with NO patches added
2.
hg update 7292
3.
make distclean
4.
./bootstrap.sh
5.
./configure --enable-tests
6.
make
7.
./build_uml
8.
./opensaf start
In cluster on any node:
# logtest
This logtest always fail testcase 39 and 40 in suite 6 with
the following will fail:
# logtest 6 39
==========================================
Log file size (0) is less than 65535
39 FAILED Modify: saLogStreamFixedLogRecordSize == 0, write a record = 65535
bytes, OK (expected UNKNOWN, got SA_AIS_NOT_VALID);
# logtest 6 40
==========================================
Log file size (0) is less than 65535
40 FAILED Modify: saLogStreamFixedLogRecordSize == 65535, Write a record =
65535 bytes with special characters, OK (expected UNKNOWN, got
SA_AIS_NOT_VALID);
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