linux-kernel - Re: [2.6.31-rc7] NFS4 client manager kthread spinning...

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Mon, 24 Aug 2009 19:18:27 -0400
From:	Trond Myklebust <Trond.Myklebust@...app.com>
To:	Daniel J Blueman <daniel.blueman@...il.com>
Cc:	linux-nfs@...r.kernel.org, Chuck Lever <chuck.lever@...cle.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [2.6.31-rc7] NFS4 client manager kthread spinning...

On Tue, 2009-08-25 at 00:12 +0100, Daniel J Blueman wrote:
> Perhaps unrelated to the manager kthread, I reproduced a
> "nfs4_reclaim_open_state: Lock reclaim failed!" message ultimately -
> expected/significant?

It is not unexpected in a situation where you lose connection with the
server. Another client is then free step in and grab the lock.

We should probably be issuing a SIGLOST to the process and clear the
page cache in this situation. Currently, we cravenly write out the data
despite the fact that we're no longer holding a lock...

Cheers
  Trond
-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@...app.com
www.netapp.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/