IV30905: MACHINE CRASHED WITHIN .SIMPLE_LOCK_TRY DUE TO NULL APPLIES TO AIX 6100-07

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• machine crashed within .simple_lock_try due to NULL
  inode pointer. The stack trace looks like
  (2)> f
  pvthread+042500 STACK:
  0000A6D4 .simple_lock_try+000014 ()
  002CACE8 iAlloc+000168 (??, ??)
  002D0F90 iGet+0015D0 (??, ??, ??, ??, ??)
  002CE6D8 iCreate+000098 (??, ??, ??, ??, ??, ??, ??)
  003C76F0 j2_create+0006F0 (??, ??, ??, ??, ??, ??, ??, ??)
  00629D0C vnop_create_attr+00014C (??, ??, ??, ??, ??, ??, ??,
  ??)
  06AC04E0 rfs3_create+000240 (??, ??, ??, ??, ??)
  0693CE8C rfs_dispatch+0008CC (??, ??)
  068F0F7C svc_getreq+00087C (??)
  00252054 threadentry+000054 (??, ??, ??, ??)
  kdb_read_mem  no real storage @ FFFFFFFFFFF8E90
  where the ccp->cc_cacheList is correct and not corrupted.
  but the ccp is not locked by the current thread (it should be)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:
  * Systems running the 6100-07 Technology Levels with the
  * bos.mp64 fileset at the levels of 6.1.7.16 or 6.1.7.17.
  ****************************************************************
  * PROBLEM DESCRIPTION:
  * System crash within .simple_lock_try due to NULL inode
  * pointer. The stack trace looks like:
  * (2)> f
  * pvthread+042500 STACK:
  *  0000A6D4 .simple_lock_try+000014 ()
  *  002CACE8 iAlloc+000168 (??, ??)
  *  002D0F90 iGet+0015D0 (??, ??, ??, ??, ??)
  *  002CE6D8 iCreate+000098 (??, ??, ??, ??, ??, ??, ??)
  *  003C76F0 j2_create+0006F0 (??, ??, ??, ??, ??, ??, ??, ??)
  *  00629D0C vnop_create_attr+00014C (??, ??, ??, ??, ??, ??, ??
  *  06AC04E0 rfs3_create+000240 (??, ??, ??, ??, ??)
  *  0693CE8C rfs_dispatch+0008CC (??, ??)
  *  068F0F7C svc_getreq+00087C (??)
  *  00252054 threadentry+000054 (??, ??, ??, ??)
  *  kdb_read_mem  no real storage @ FFFFFFFFFFF8E90
  * where the ccp->cc_cacheList is correct and not corrupted, but
  * the ccp is not locked by the current thread (it should be).
  ****************************************************************
  * RECOMMENDATION:
  * Install APAR IV30905.
  ****************************************************************
  

Problem conclusion

• in iRecycle(), return EAGAIN instead of EBUSY if fs is in
  degraded mode and the inode is dirty.
  

Temporary fix

Comments

APAR Information

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

  IV24508

• 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 U854618

     UP13/03/22 I 1000

PTF to Fileset Mapping

• U854618 bos.mp64 6.1.7.18