Asset ID:	1-77-1000644.1
Update Date:	2011-02-25
Keywords:

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Solution Type  Sun Alert Sure

Solution  1000644.1 :   Sun Blade 100/150 Systems Running SunVTS May Report "data miscompare" Errors  


PreviouslyPublishedAs
200853

Product
Sun Blade 100 Workstation
Sun Blade 150 Workstation

Bug Id
<SUNBUG: 4858028>

Date of Workaround Release
02-SEP-2003

Impact

Sun Blade 100/150 systems running SunVTS 5.1 may report "data miscompare" error messages under certain conditions.

Note: SunVTS is a diagnostic tool designed to exercise the system at significantly higher rates of data transfer and utilization than may appear in a normal operating environment.

Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Sun Blade 100 with SunVTS 5.1
• Sun Blade 150 with SunVTS 5.1

The described issue only occurs if all of the conditions following are met:

• the system is running in diagnostic mode
• the serial port controller is handling heavy traffic such as data access from/to IDE hard disk
• when "sutest" (Super I/O Test) and "disktest" (Disk Drive Tests) are run simultaneously

Symptoms

Should the described issue occur, SunVTS may report "data miscompare" errors similar to the following:

    08/11/03 16:35:58 dt214-175 SunVTS5.1ps2: VTSID 6003 sutest.WARNING su0:
"data miscompare, cnt = 2910, exp = 0x5e, obs = 0x4e, receive device =
/dev/term/a, source device = /dev/term/a, baud rate = 9600"
Probable_Cause(s): <system load too heavy for selected baud rate>
loopback connection defective> <bad serial port hardware> <system
software error> Recommended_Actions: <reduce system load> <lower baud
rate> <check loopback connection> <if the problem persists, contact
authorized Sun service provider>

Workaround

To avoid this issue, do not run "sutest" and "disktest" concurrently. Therefore, when running "sutest", all "disktest" should be de-selected and when running "disktest", all "sutest" should be de-selected.

Resolution

A final resolution is pending completion.

Modification History

Date of Resolved Release
20-Aug-2008

Previously Published As
101325
Internal Comments

Internal Contributor/submitter
[email protected]

Internal Eng Business Unit Group
SSG WGS (Workgroup Systems)

Internal Eng Responsible Engineer
[email protected]

Internal Services Knowledge Engineer
[email protected], [email protected]

Internal Sun Alert Kasp Legacy ID
101325, 56520 (Sun Alert)

Internal Sun Alert & FAB Admin Info
Critical Category: Availability ==> Pervasive
Significant Change Date: 2003-09-02
Avoidance: Workaround
Responsible Manager: [email protected]
Original Admin Info: WF 07-Nov-2007 - changed to External. Resp Eng has not updated with solution. Karen

This document has been imported from KMS Creator and may need adjustment before re-publishing.

This imported document has been reviewed/adjusted by:
Review Name:
Review Date:

Original KMS Creator attributes below:

--- PLEASE DO NOT MAKE ANY CHANGES BELOW THIS LINE! ---

Sun Alert ID: 56520
Synopsis: Sun Blade 100/150 Systems Running SunVTS May Report "data miscompare" Errors
Category: Availability
Product: Sun Blade 100, Sun Blade 150
BugIDs: 4858028
Avoidance: Workaround
State: Committed
Date Released: 02-Sep-2003
Date Closed:
Date Modified:
Escalation IDs: None
Pending Patches:
Resolution Patches:
FIN:
FCO:
Date Submitted: 25-Aug-2003
Submitter: [email protected]
Responsible Engineer: [email protected]
Responsible Manager: [email protected]
CTE group: CPRE VSP US
Responsible Writer: [email protected]
Distribution: Contract SunSolve

Workflow History:

WF State: Issued, 02-Sep-2003, Jeff Folla
WF Note: Sending for release per Dave's email ok to release.

WF State: Draft, 28-Aug-2003, Karen Edwards
WF Note: On Hold - per Dave B

WF State: Draft, 28-Aug-2003, Karen Edwards
WF Note: sent for signoff

WF State: Draft, 27-Aug-2003, Jeff Folla
WF Note: sent for review

WF State: Draft, 25-Aug-2003, Jeff Folla
WF Note: Article created.

Exported from KMS Creator Sat May 21 09:03:13 2005 GMT, [email protected]

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