kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Does the patched kernel continue to help?  If so, I can request that
commit e3a746f5 is included in upstream 3.2.  It which case, it will be
included in Precise through the normal stable update process.

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https://bugs.launchpad.net/bugs/1327360

Title:
  xfs_btree_cur leak

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  There appears to be a kernel memory leak of xfs_btree_cur in recent
  Precise kernels (3.2.0-45 and -63 are affected, for sure).   The slab
  can grow unbounded; we've seen it grow larger than 32GB via slabtop.
  The affected hosts have XFS mounted on / (root filesystem).

  We have another host running 3.2.0-38 in which we do not see this
  problem (it has a 37TB XFS filesystem mounted, but not on root).

  Upgrading to the latest 3.8.0-41 kernel via linux-generic-lts-raring
  seems to resolve the issue.

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