LwIP bugfix release

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Details

GBAS/SLS in Minneapolis, Mn
Hardware: x86
Expected cert: JUN-2009
Products Used: DESK, Kernel, GCC
GBAS/SLS Plus Technical Contact: Chris Pow
GBAS/SLS Plus Software Lead:
GBAS/SLS Plus Technical Manager Contact: Kim Class
GBAS/SLS Plus Program Manager: Rich Stensland
Deos Manager: G. Craig Johnson
Deos Technical Contact: Tom Taranowski
Deos Financial Contact: Lisa Bratlien - 602-436-7456

Provide a verified release of the Deos lwIP Network component which contains the bugfix described in PCR 5739.

Description

The lwIP network stack provides network connectivity for the Deos platform.

Rich Stensland is the current customer contact for this project.

Current Status

The bugfix has already been implemented and thoroughly tested by the customer. A cert candidate release, installable via cygin, needs to be made with the fix. The customer should then do a follow-up test with that binary. What then remains is to do the documentation and re-verification activities.

Risks

To minimize risk, the customer should run the network regression tests on their system.

Potential cost saving approaches

This bug showed up on the GBAS system because the GBAS registry configuration does not match that of the registry used in the run-for-score test run. A fix could be implemented by adjusting the GBAS registry so that all user service threads run at system tick rate. This fix is cheaper, but is fragile because of the possibility of future unforeseen registry changes, and is not recommended for that reason.

Tasks

Initial Budget: $14,640

TotalTD: TBD

Current ETC: TBD

Current EAC: TBD

Milestones Due Date Estimated Delivery Delivered Percentage Complete
[2] Engineering Build Release Release 04/03/2009 04/03/2009 04/03/2009 100%
[2] Certification Candidate Release 5/4/2009 5/4/2009 5/3/2009 100%
[3] Verified Release 6/8/2009 5/22/2009 5/22/2009 100%



Tasks for [Milestone 1] Certification Candidate Release

Task Dependency Assignee Risk Original Estimate Current Estimate Elapsed Remaining Percentage Complete Estimated Completion Date Actual Completion Date [see completion note]
1.1 Revise one line of code PCR 5739 Thomas Taranowski 8 8 8 0 100% 04/03/2009 04/03/2009
1.2 Certification Candidate Release 1.2 Thomas Taranowski 8 8 8 0 100% 04/03/2009 04/03/2009
1.3 Add test case 1.1 Thomas Taranowski 8 8 8 0 100% 04/17/2009 4/17/2009
1.4 Add test procedure 1.3 Miroslav Havlasek 12 12 57 0 100% 05/04/2009 5/4/2009
1.2 Certification Candidate Release - 1.17.2 1.2 Thomas Taranowski 16 16 16 0 100% 05/03/2009 05/03/2009
Totals 52 52 97 0 100%


  • If SLS/GBAS reports no more fixes, the Engineering Build is promoted to a Certification Candidate build without additional work. The test case and test procedure labor is to add a test to check the recvfrom() bug fix.


Tasks for Milestone [2] Verified Release

Status Summary

Task Dependency Assignee Risk Original Estimate Current Estimate Elapsed Remaining Percentage Complete Estimated Completion Date Actual Completion Date
2.0 Life cycle audit #3 2.7 Cheryl Leary None 16 16 16 0 100% 04/23/2009 05/11/2009
2.1 Requirements coverage analysis 2.0 Tom Taranowski None 4 4 4 0 100% 04/22/2009 4/21/2009
2.2 Conformity inspection - SQA build Witness 2.1 Cheryl Leary 8 8 8 100% 05/11/2009 05/15/2009
2.3 Integration review 2.2 Cheryl Leary 8 8 8 0 100% 5/11/2009 5/11/2009
2.4 Setup test equipment. Includes some maintenance as required. Tom Taranowski 8 8 8 0 100% 04/24/2009 04/26/2009
2.5 Run for score, including SQA witnessing, and test results review 2.4 Cheryl Leary 8 8 8 0 100% 5/11/2009 5/11/2009
2.6 Verification audit 2.5 Cheryl Leary 8 8 8 0 100% 04/28/2009 05/3/2009
2.7 SAS, SLCECI, SCI 2.6 Tom Taranowski None 40 40 40 0 100% 05/04/2009 05/15/2009
2.8 Software conformity audit 2.7 Cheryl Leary None 8 8 0 8 0 05/05/2009 05/19/2009
2.9 Population of certification archive (PCA) 2.8 Tom Taranowski None 8 8 8 0 100% 05/06/2009 05/14/2009
Totals 96 96 96 0 100%

Administrative

Task Original Estimate Current Estimate Elapsed Remaining Percentage Complete
Status, and other administrative overhead 10 10 10 0 100%