IV99213: CRASH WHILE TESTING SNMP TEST BUCKET APPLIES TO AIX 7100-05

APAR status

• Closed as program error.

Error description

• Crash with this stack when running UDP detailed trace and
  MODS:
  
  DB(0)> f pvthread+088800 STACK:  Ý06125624¨udp_input1+0000C4
  (F100050007232E00, F1000B00007589C0,
     F1000B0000EF67C0) Ý06197980¨ipintr_noqueue_post_fw+000A80
  (0000000000000000, F100050007232E00,
     0000000000000000) Ý06198C74¨ipintr_noqueue+0001D4 (??, ??,
  ??) Ý06198E24¨ipintr+0000E4 ()
  Ý00219790¨IPRA.$i_offlevel+000170 (??, ??)
  Ý00219130¨i_softmod+000630 () Ý00237940¨flih_util+000260 ()
  

Local fix

Problem summary

• Crash with this stack when running UDP detailed trace and
  MODS:
  
  DB(0)> f pvthread+088800 STACK:   06125624 udp_input1+0000C4
  (F100050007232E00, F1000B00007589C0,
     F1000B0000EF67C0)  06197980 ipintr_noqueue_post_fw+000A80
  (0000000000000000, F100050007232E00,
     0000000000000000)  06198C74 ipintr_noqueue+0001D4 (??, ??,
  ??)  06198E24 ipintr+0000E4 ()
   00219790 IPRA.$i_offlevel+000170 (??, ??)
   00219130 i_softmod+000630 ()  00237940 flih_util+000260 ()
  

Problem conclusion

• Save filtered mbuf flag from mbuf before calling functions that
  might free the mbuf, and use the saved flag in UDP trace calls.
  

Temporary fix

Comments

APAR Information

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

  IV99209

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

Fix information

• Fixed component name

  AIX V7.1

• Fixed component ID

  5765H4000

Applicable component levels

• R710 PSY U870529

     UP17/10/13 I 1000