A fix is available
APAR status
Closed as program error.
Error description
- The shutdown of one node in a two node unicast cluster with SANComm configured may cause a kernel panic of the remaining node. - The error report log entry appears as follows: --------------------- LABEL: KERNEL_PANIC . . . PANIC STRING Deadman timer triggered. . . . ---------------------
Local fix
Problem summary
System configured with ethernet, SANCOM and DPCOM may Panic with "Deadman timer triggered." panic string when ethernet is disabled and SANCOM is experiencing outgoing EOVERFLOW transmission errors.
Problem conclusion
Normally it is expected the cluster would fall back to DPCOM in such cases, but that was not happening because the SANCOM interface was not being marked DOWN even though it was experiencing transmission issues. Fixed monitoring of SANComm traffic such that if there is none, it is marked DOWN, leading to enablement of DPCOM.
Temporary fix
Comments
6100-07 - use AIX APAR IV58896 6100-08 - use AIX APAR IV58864 6100-09 - use AIX APAR IV58770 6100-09 - use AIX APAR IV58770 6100-09 - use AIX APAR IV58770 7100-01 - use AIX APAR IV59027 7100-02 - use AIX APAR IV58954 7100-03 - use AIX APAR IV57462 7100-04 - use AIX APAR IV58879
APAR Information
APAR number
IV58896
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-04-07
Closed date
2014-04-07
Last modified date
2016-05-10
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U865589
UP14/08/11 I 1000
PTF to Fileset Mapping
U865589 bos.cluster.rte 6.1.7.21
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Document Information
Modified date:
10 May 2016