Hi,

Jan-Marek Glogowski:
> Tested 2.6.23-rc6 - didn't solve the BUG.

Here are some patches for 2.6.23-rc6 and the latest aufs.
Please try, and let me know the result.

- a.patch
  for aufs
- put_filp.patch
  for kernel, required.
- splice.patch
  for kernel, optional, when you use loopback mount on the file inside
  aufs. also CONFIG_AUFS_SPLICE_PATCH should be enabled. currently
  writable loopback is not supported.
- sysfs_get_dentry.patch
  for kernel and paranoia (like me), optional, if you enable
  CONFIG_AUFS_SYSAUFS.

This patch supports nfsv4 as readonly branch.
On my test environment, nfsv4 dosen't seem to be stable.
- it sometimes stops for 30 or 60 seconds, like waiting for timeout or
  something.
- a kernel debug feature or someting warns about a referece counter of a
  dentry when unmounting nfsv4.


Junjiro Okajima

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