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Submitted URL: https://www-01.ibm.com/support/docview.wss?uid=isg1IV91020
Effective URL: https://www.ibm.com/support/pages/apar/IV91020
Submission: On May 02 via api from US — Scanned from DE
Effective URL: https://www.ibm.com/support/pages/apar/IV91020
Submission: On May 02 via api from US — Scanned from DE
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Support My IBM Log in
IBM SUPPORT
No results were found for your search query.
--------------------------------------------------------------------------------
TIPS
To return expected results, you can:
* Reduce the number of search terms. Each term you use focuses the search
further.
* Check your spelling. A single misspelled or incorrectly typed term can change
your result.
* Try substituting synonyms for your original terms. For example, instead of
searching for "java classes", try "java training"
* Did you search for an IBM acquired or sold product ? If so, follow the
appropriate link below to find the content you need.
Our apologies
Search results are not available at this time. Please try again later or use one
of the other support options on this page.
IV91020: CRASH IN VIOENT_INIT_LS_TIMER WHEN POLL_UPLINK=YES 16/12/29 PTF
PECHANGE
A FIX IS AVAILABLE
Obtain the fix for this APAR.
APAR STATUS
* CLOSED AS PROGRAM ERROR.
ERROR DESCRIPTION
* **************************************************************
* USERS AFFECTED:
* Systems running the AIX 7200-01 Technology Level
* with devices.vdevice.IBM.l-lan.rte at the 7.2.1.0 level.
**************************************************************
* PROBLEM DESCRIPTION:
* On VIO client LPARs using virtual ethernet, if the
* poll_uplink attribute is set to 'yes' for any virtual
* ethernet adapter device, the system may crash during reboot
* after updating to the affected Service Packs listed below.
*
* The device attribute can be verified with:
* # lsattr -El entX -a poll_uplink
*
* Please apply the fixes below if updating to the affected
* Service Packs, before rebooting, to avoid the crash
* on boot.
*
* The crash will show information similar to:
* Illegal Trap Instruction Interrupt in Kernel
* vioent_init_ls_timer+000000 tdllti r31,200
*
* If this crash is experienced, the system can be recovered
* by temporarily removing the virtual ethernet device(s) from
* the LPAR profile and rebooting. Then the attribute can be
* unset and the system reactivated with the original profile.
*
* The device attribute can be changed with:
* # chdev -l entX -a poll_uplink=no
**************************************************************
* RECOMMENDATION:
* Install APAR IV91020.
* Prior to fix availability, an interim fix is available from
* either
* ftp://aix.software.ibm.com/aix/ifixes/iv91020/
* https://aix.software.ibm.com/aix/ifixes/iv91020/
* Installation of the ifix requires a reboot.
**************************************************************
LOCAL FIX
* If this crash is experienced, the system can be recovered
by temporarily removing the virtual ethernet device(s) from
the LPAR profile and rebooting. Then the attribute can be
unset and the system reactivated with the original profile.
.
The device attribute can be changed with:
# chdev -l entX -a poll_uplink=no
PROBLEM SUMMARY
* A compiler option is used with the vioentdd driver to
instrument a number of runtime checks. These checks
are hit regularly by vioent_init_ls_timer(), which is
executed when poll_uplink=yes.
PROBLEM CONCLUSION
* For now remove the compiler option to avoid the asserts.
TEMPORARY FIX
* *********
* HIPER *
*********
COMMENTS
*
APAR INFORMATION
* APAR NUMBER
IV91020
* REPORTED COMPONENT NAME
AIX V7.2
* REPORTED COMPONENT ID
5765CD200
* REPORTED RELEASE
720
* STATUS
CLOSED PER
* PE
YesPE
* HIPER
YesHIPER
* SUBMITTED DATE
2016-11-25
* CLOSED DATE
2016-11-25
* LAST MODIFIED DATE
2017-01-30
* APAR IS SYSROUTED FROM ONE OR MORE OF THE FOLLOWING:
IV91004
* APAR IS SYSROUTED TO ONE OR MORE OF THE FOLLOWING:
U876038
FIX INFORMATION
* FIXED COMPONENT NAME
AIX V7.2
* FIXED COMPONENT ID
5765CD200
APPLICABLE COMPONENT LEVELS
* R720 PSY U876038
UP17/01/30 I 1000 «
Cross-reference informationProductComponentPlatformVersionAIX 7.2 Enterprise
EditionPlatform Independent720AIX 7.2 HIPERS, APARs and FixesPlatform
Independent720
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DOCUMENT INFORMATION
More support for:
AIX 7.2 Enterprise Edition
Software version:
720
Document number:
2156043
Modified date:
30 January 2017
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