Asset ID:	1-72-1003730.1
Update Date:	2009-12-02
Keywords:

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Solution Type  Problem Resolution Sure

Solution  1003730.1 :   Time Drift occur on Ultra[TM] 5/Ultra[TM] 10  


PreviouslyPublishedAs
205254

Symptoms
The time drift failure may occur during SunVTS[TM] and err=22 messages appear in console on Ultra[TM] 5/Ultra[TM] 10. Even if you did not run SunVTS, time drift or system hang may occur during normal operation.

	Example
	stlab155[1]# while (1)
	? date
	? sleep 10
	? end
	Sun Dec 31 09:00:00 JST 1967
	Mon Dec	 1 17:22:29 JST 2003
	Mon Dec	 1 17:22:30 JST 2003
	Mon Dec	 1 17:22:28 JST 2003
	Mon Dec	 1 17:22:29 JST 2003
	Mon Dec	 1 17:22:30 JST 2003
	Mon Dec	 1 17:22:28 JST 2003
	Mon Dec	 1 17:22:28 JST 2003
	Mon Dec	 1 17:22:29 JST 2003
	Mon Dec	 1 17:22:30 JST 2003
	Mon Dec	 1 17:22:28 JST 2003
	Sun Dec 31 09:00:00 JST 1967

Resolution
This case was due to high rate of defective U18 (74LVT16373) chip on mother board as a result of some CPAS analysis. U18 failure caused not only time drift but system hang, audio test failure, ERR=22 messages or post error.

If other problem occur without time issue, need to replace system board.

Product
Ultra 10 Workstation
Ultra 5 Workstation

Internal Comments
Audited/updated 11/17/09 - Ian.Macdonald@Sun.COM, Entry Level SPARC Content Team Member

DEFECT DESCRIPTION:

This case was due to high rate of defective U18
(74LVT16373) chip on mother board as a result of some
CPAS analysises. U18 failure caused not only time drift
but system hang, audio test failure, ERR=22 messages or
post error.

The root cause is related to the Sumitomo EME-7351UT
mold compound. Affected components are below.

U-Loc: U18
Description: IC;74ABT16373A, D F/F, TSS OP,48P
Vedor: Fairchild
Date Code: 9848=< Date Code < 0152

U-Loc: U34/U40
Description: IC;74LVT16244A,BUF/DRV,TSSOP,48P
Vedor: Fairchild
Date Code: 9848=< Date Code < 0152

DPCO# 444 was released as corrective action.


Relief/Workaround:

Temporary Workaround -

Add the line 'set tod_broken = 1' to '/etc/system' and use ntp.

Additional Info:

CASEID: 10461460
BugID: 4974292
EscID: 550210
DPCO: DPCO#444

time drift, ultra5, ultra10
Previously Published As
79352

Change History
Date: 2004-12-13
User Name: 71396
Action: Approved
Comment: Reviewed document, updated product name and trademarking, publishing.
Version: 3
Date: 2004-12-09
User Name: 71396
Action: Accept
Comment:
Version: 0


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