Ack: Re: [Precise][PATCH 0/4] nfs: Kernel Oops on nfs_have_delegation

[Herton Ronaldo Krzesinski]

On Thu, Apr 19, 2012 at 10:44:59AM +0100, Luis Henriques wrote:
> BugLink: http://bugs.launchpad.net/bugs/974664
> 
> == Precise SRU Justification ==
> 
> This bug is preventing users from using NFS clients on Precise.
> Several users have reported the issue, which has been already fixed
> upstreams but did not made it into stable yet.
> 
> == Fix ==
> 
> There are four commits that are relevant to fix this issue.  From
> mainline kernel:
>  - 14977489ffdb80d4caf5a184ba41b23b02fbacd9 (cherry-pick)
>  - 96dcadc2fdd111dca90d559f189a30c65394451a (backported)
> From linux-nfs git tree
> (git://git.linux-nfs.org/projects/trondmy/linux-nfs.git):
>  - 487790f27df9bb27d3400486bd021dd59edc7589 (cherry-pick)
>  - 5de4815015e550bdd33f39650554325540356f0c (cherry-pick)

Ack, the first two patches are simple and reporters confirmed they address
the crash.

But I have the same concerns as Stefan, why
487790f27df9bb27d3400486bd021dd59edc7589 is only marked >= 3.3.1, and
why 14977489ffdb80d4caf5a184ba41b23b02fbacd9 wasn't sent for stable,
perhaps Trond plans to send it?

> 
> == Impact ==
> 
> There are several users reporting the same issue when running NFS
> clients on Precise.  Other reports have also been found with the same
> issue:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=811138
> 
> == Test Case ==
> 
> According to one of the bug reporters:
> 
> "Logging into a 12.04 client system with autofs5, LDAP, kerberos authenticated
> nfs4 mounts. However this is to a server which is running 10.04 (contrary to #4
> it seems) In my case the triggering process is gnome-keyring-d."
> 
> Trond Myklebust (3):
>   NFSv4: Minor cleanups for nfs4_handle_exception and
>     nfs4_async_handle_error
>   NFSv4: Ensure that the LOCK code sets exception->inode
>   NFSv4: Ensure that we check lock exclusive/shared type against open
>     modes
> 
> William Dauchy (1):
>   NFSv4: Rate limit the state manager for lock reclaim warning messages
> 
>  fs/nfs/nfs4proc.c  |   33 ++++++++++++++++++++++++++-------
>  fs/nfs/nfs4state.c |    5 +++--
>  2 files changed, 29 insertions(+), 9 deletions(-)
> 
> -- 
> 1.7.9.5
> 
> 
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> 

-- 
[]'s
Herton