IZ90783: FCOE MASON ADAPTER CRASH IN TX/RX PATH AT .CT_HOOK5 OR ERROR APPLIES TO AIX 5300-11

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In TX/RX macros for component tracing , driver uses tx_lock/
  slih_lock for synchronization between threads trying to write
  to TX/RX component trace. Since tx_lock/slih_lock are obtained
  with interrupts disabled to driver interrupt priority, we have
  to make sure we raise the interrupt priority to driver
  interrupt priority for every component trace write. Absence of
  this logic caused system crash in ct_hook5.
  

Local fix

Problem summary

• In TX/RX macros for component tracing , driver uses tx_lock/
  slih_lock for synchronization between threads trying to write
  to TX/RX component trace. Since tx_lock/slih_lock are obtained
  with interrupts disabled to driver interrupt priority, we have
  to make sure we raise the interrupt priority to driver
  interrupt priority for every component trace write. Absence of
  this logic caused system crash in ct_hook5.
  

Problem conclusion

• Add code changes mentioned above.
  

Temporary fix

Comments

• 5300-11 - use AIX APAR IZ90783
  5300-12 - use AIX APAR IZ90837
  6100-04 - use AIX APAR IZ83900
  6100-05 - use AIX APAR IZ84020
  6100-06 - use AIX APAR IZ83118
  7100-00 - use AIX APAR IZ83207
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IZ83118

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  AIX 5.3

• Fixed component ID

  5765G0300

Applicable component levels

• R530 PSY U840356

     UP11/02/22 I 1000

PTF to Fileset Mapping

• U840356 devices.pciex.771000801410b003.rte 5.3.11.5