Ubuntu
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RELEASE_LOCKOWNER Patch?

Asked by km

We are running a 10.10 Ubuntu server that serves thin client desktops. It's overloading the lock table in our NFSV4 server by not issuing RELEASE_LOCKOWNER as needed. There is a fix for this at kernel.org

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.37.y.git;a=commit;h=d3c7b7ccc199ee564177ee914c04771d6bc00295

but it doesn't get integrated until 2.6.37 and Ubuntu 10.10 is 2.6.35.

This is a multiuser system and we are not in a position to upgrade to Ubuntu 11.04 at this time, which would get us to 2.6.38 and presumably the patch.

Has anyone had experience running Ubuntu 10.10 with a 2.6.37 or later kernel, or integrating this patch into 2.6.35?

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mycae (mycae) said : 		#1

km: I can't comment on the fix, but you can rebuild the kernel package, including the patch if you want/need. If you need to deploy it to multiple machines, you could even set up your own PPA or package repository, either on launchpad, or on your own network.

http://www.question-defense.com/2010/09/26/how-to-recompile-your-ubuntu-10-10-kernel-for-patching-or-to-add-support-for-a-specific-device

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km (km-mathcs) said : 		#2

We built the 11.04 kernel (which has the patch) on 10.10, and so far so good.