IV98814: DSI DUE TO VLANDD TRANSMIT APPLIES TO AIX 7200-02

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• There are at least two possible stacks for this issue:
  
  [F1000000C05661B4]seadd:sea_output+0006D4
  (F1000E003D13FE00, 0000000000000012 [??])
  [F1000000C03FF88C]vlandd:send_packet+00024C (??, ??)
  [F1000000C03FFEC8]vlandd:vlan_output+000108 (??, ??)
  [00014D70].hkey_legacy_gate+00004C ()
  [04B131E8]if_en:en_output+000928 (??, ??, ??, ??)
  [047A1D18]netinet:ip_output_post_fw+001938
  (0000000000000000, F1000E00391E2400,
     F1000A0025C93A20)
  [047A3CE0]netinet:ip_output+000140 (??, ??, ??, ??, ??,
  ??)
  [047AC2CC]netinet:icmp_send+00020C (??, ??)
  [047AC87C]netinet:icmp_reflect+00037C (??)
  [047AD400]netinet:icmp_input+000A60 (??, ??)
  [0473CCF4]netinet:ipintr_noqueue_post_fw+000994
  (F1000A02366D39B0, F1000E00391E2400,
     F1000A0025C93F30)
  [0473E0A0]netinet:ipintr_noqueue+0001E0 (??, ??, ??)
  [0473F73C]netinet:in_newstack+000020 ()
  [04737DD4]netinet:in_flip_and_run+0001F4 (??, ??, ??)
  [04736F88]netinet:dogisr+000428 (F1000A002569E718,
  F1000E00391E2400,
     F1000E00391E2478)
  [046F2DE0]eth_demux:eth_std_receive+000400 (??, ??, ??)
  [046F0C58]eth_demux:eth_receive+000238 (??, ??)
  [046BB954]vioentdd:vioent_receive+000F54 (??, ??, ??)
  [046BDA18]vioentdd:vioent_slih+000518 (??)
  [002646C4]i_poll_soft+000204 (??)
  [00263E50]i_softmod+000670 ()
  [0020292C]flih_util+000258 ()
  
  or that might succeed and the output routine fails.  The
  routine could be any network driver.  goent_output is
  shown below:
  
  [046AB874]goentdd:goent_output+000B34 (F1000A00272C3000,
  0000000000000000 [??])
  [F1000000C0513030]seadd:sea_output+000550 (??, ??)
  [F1000000C03CC88C]vlandd:send_packet+00024C (??, ??)
  [F1000000C03CCEC8]vlandd:vlan_output+000108 (??, ??)
  [00014D70].hkey_legacy_gate+00004C ()
  [04A031E8]if_en:en_output+000928 (??, ??, ??, ??)
  [04831D18]netinet:ip_output_post_fw+001938
  (0000000000000000, F1000E0001205A00,
     F1000A0025C87710)
  [04833CE0]netinet:ip_output+000140 (??, ??, ??, ??, ??,
  ??)
  [048940B0]netinet:tcp_resprst+0005F0 (??, ??, ??, ??, ??,
  ??)
  [0487BC58]netinet:tcp_input0+0021F8 (??, ??, ??, ??)
  [048842C0]netinet:tcp_input+0001A0 (F1000E0001205A00,
  0000001400000014)
  [047CCCF4]netinet:ipintr_noqueue_post_fw+000994
  (F1000A09B1381AA0, F1000E0001205A00,
     F1000A0025C87F30)
  [047CE0A0]netinet:ipintr_noqueue+0001E0 (??, ??, ??)
  [047CF73C]netinet:in_newstack+000020 ()
  

Local fix

Problem summary

• System crash in vlan transmit path. Some of the possible stack
  traces are
   F1000000C05661B4 seadd:sea_output+0006D4
  (F1000E003D13FE00, 0000000000000012  ?? )
   F1000000C03FF88C vlandd:send_packet+00024C (??, ??)
   F1000000C03FFEC8 vlandd:vlan_output+000108 (??, ??)
   00014D70 .hkey_legacy_gate+00004C ()
   04B131E8 if_en:en_output+000928 (??, ??, ??, ??)
   047A1D18 netinet:ip_output_post_fw+001938
  (0000000000000000, F1000E00391E2400,
     F1000A0025C93A20)
   047A3CE0 netinet:ip_output+000140 (??, ??, ??, ??, ??, ??)
   047AC2CC netinet:icmp_send+00020C (??, ??)
   047AC87C netinet:icmp_reflect+00037C (??)
   047AD400 netinet:icmp_input+000A60 (??, ??)
   0473CCF4 netinet:ipintr_noqueue_post_fw+000994
  (F1000A02366D39B0, F1000E00391E2400, F1000A0025C93F30)
   0473E0A0 netinet:ipintr_noqueue+0001E0 (??, ??, ??)
   0473F73C netinet:in_newstack+000020 ()
   04737DD4 netinet:in_flip_and_run+0001F4 (??, ??, ??)
   04736F88 netinet:dogisr+000428 (F1000A002569E718,
  F1000E00391E2400, F1000E00391E2478)
   046F2DE0 eth_demux:eth_std_receive+000400 (??, ??, ??)
   046F0C58 eth_demux:eth_receive+000238 (??, ??)
   046BB954 vioentdd:vioent_receive+000F54 (??, ??, ??)
   046BDA18 vioentdd:vioent_slih+000518 (??)
   002646C4 i_poll_soft+000204 (??)
   00263E50 i_softmod+000670 ()
   0020292C flih_util+000258 ()
  or that might succeed and the output routine fails.  The
  routine could be any network driver.  goent_output is
  shown below:
   046AB874 goentdd:goent_output+000B34 (F1000A00272C3000,
  0000000000000000  ?? )
   F1000000C0513030 seadd:sea_output+000550 (??, ??)
   F1000000C03CC88C vlandd:send_packet+00024C (??, ??)
   F1000000C03CCEC8 vlandd:vlan_output+000108 (??, ??)
   00014D70 .hkey_legacy_gate+00004C ()
   04A031E8 if_en:en_output+000928 (??, ??, ??, ??)
   04831D18 netinet:ip_output_post_fw+001938
  (0000000000000000, F1000E0001205A00, F1000A0025C87710)
   04833CE0 netinet:ip_output+000140 (??, ??, ??, ??, ??, ??)
   048940B0 netinet:tcp_resprst+0005F0 (??, ??, ??, ??, ??, ??)
   0487BC58 netinet:tcp_input0+0021F8 (??, ??, ??, ??)
   048842C0 netinet:tcp_input+0001A0 (F1000E0001205A00,
  0000001400000014)
   047CCCF4 netinet:ipintr_noqueue_post_fw+000994
  (F1000A09B1381AA0, F1000E0001205A00, F1000A0025C87F30)
   047CE0A0 netinet:ipintr_noqueue+0001E0 (??, ??, ??)
   047CF73C netinet:in_newstack+000020 ()
  

Problem conclusion

• Code corrected to avoid structure padding so that the mbuf len
  is proper.
  

Temporary fix

Comments

APAR Information

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

  IV96462

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

Fix information

• Fixed component name

  AIX V7.2

• Fixed component ID

  5765CD200

Applicable component levels

• R720 PSY U869951

     UP17/10/12 I 1000

PTF to Fileset Mapping

• U869951 devices.common.IBM.ethernet.rte 7.2.2.0