Info
An HP-UX 11i v3 system with Auto Port Aggregation (APA) configuration, the APA driver,
may cause a "Data Key Miss Fault" panic in the constituent NIC (network interface card)
drivers of an APA group with a stack trace similar to the following:
Stack Trace:
IP Function Name
0xe000000001fc8950 bad_news+0x3b0
0xe000000001fce780 bubbledown+0x0
0xe00c0020dcb88e10 iexgbe_ctl+0xa70
0xe00c0020dcb701b0 iexgbe_ilan_ioctl+0x3f0
0xe000000000e18640 hp_dlpi_process_control+0x730
0xe0000000014a2ff0 hp_dlpi_schedule_control+0x130
0xe000000000fe0950 invoke_callouts_for_self+0x470
0xe000000000fcc6b0 soft_intr_handler+0x1c0
0xe000000000fec4a0 external_interrupt+0x520
0xe000000001fce780 bubbledown+0x0
0xe000000000fa4b80 idle+0x7e0
End of Stack Trace
Note
: In the above example, the NIC driver involved in the trace
is iexgbe, the 10GigEthr-02 driver. The panic can also happen to other NIC drivers like
iether, the Iether-00 driver.
Scope
HP-UX 11i v3 systems using HPE Auto Port Aggregation release B.11.31.1905 or earlier.
Resolution
A fix was provided with the HPE Auto Port Aggregation May 2022 Release (B.11.31.2205)
for HP-UX 11i v3 - available at HPE Software Center at the following URL:
https://myenterpriselicense.hpe.com/cwp-ui/product-details/HPUX-APA/B.11.31.2205/sw_free
Refer to "HPE Auto Port Aggregation Release Notes" in HP-UX Consolidated Independent
Software Unit (ISU) Release Notes for details.
HPE recommends updating the HPE APA to be May 2022 release on an HP-UX 11.31 system
with APA configuration to avoid the panic.
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