IV56083: SYSTEM CRASH IN IMARK

APAR status

• Closed as fixed if next.

Error description

• System crash in nfsd at:
  pvthread+099000 STACK:
  [0017BEEC]iMark+0000AC (0000000000000000,
  0000000000000000 [??])
  [003ACE50]iTruncate+000370 (??, ??, ??)
  [003DBC5C]j2_create+0005FC (??, ??, ??, ??, ??, ??, ??,
  ??)
  [00597904]vnop_create_attr+000144 (??, ??, ??, ??, ??,
  ??, ??, ??)
  [00014E48].kernel_add_gate+000048 ()
  [04D124E0]nfs.ext:rfs3_create+0002E0 (??, ??, ??, ??, ??)
  [04BAD2C0]nfs.ext:rfs_dispatch+0008C0 (??, ??)
  [04B60C28]krpc.ext:svc_getreq+000968 (??)
  [002554BC]threadentry+00005C (??, ??, ??, ??)
  
  while the JFS2 file system was being shrunk in chfs at:
  (1)> f 2726
  pvthread+0AA600 STACK:
  [000D7950]e_block_thread+000290
  [000D85A8]e_sleep_thread+0000E8
  [001851A8]bmRead+0003C8
  [0038D120]diWrite@AF52_21+000100
  [00392024]txCommit+000684
  [001744C8]iQuiesceInode+0000E8
  [001775A4]iQuiesce+000704
  [0036275C]quiesceFSReportTmp+00009C
  [0051A098]j2_shrinkfs+000298
  [0051D070]j2ShrinkFS+000010
  [0051D528]j2_cntl+0003A8
  [005A1C4C]vfs_cntl+00012C
  [005B4D6C]fscntl+0001CC
  

Local fix

• Unexport a JFS2 file system before changing its size.
  

Problem summary

• System crash when trying to create a file in an exported J2
  filesystem from an NFS client, when the filesystem is being
  modified through chfs.
  

Problem conclusion

Temporary fix

Comments

• This APAR is being closed FIN. This means that a solution to
  this APAR is expected to be delivered from IBM in a release
  (if any) to be available within the next 24 months.
  

APAR Information

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

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

  IV57745 IV58096 IV58103 IV58187 IV58660

Fix information

Applicable component levels

• R610 PSY

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