linux-kernel - Re: [NFS] NFS on loopback locks up entire system(2.6.23-rc6)?

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Date:	Fri, 21 Sep 2007 12:24:41 -0400
From:	Trond Myklebust <Trond.Myklebust@...app.com>
To:	Chakri n <chakriin5@...il.com>
Cc:	nfs@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [NFS] NFS on loopback locks up entire system(2.6.23-rc6)?

On Fri, 2007-09-21 at 09:20 -0700, Chakri n wrote:
> Thanks.
> 
> I was using flock (BSD locking) and I think the problem should be
> solved if I move my application to use POSIX locks.

Yup.

> And any option to avoid processes waiting indefinitely to free pages
> from NFS requests waiting on unresponsive NFS server?

The only solution I know of is to use soft mounts, but that brings
another set of problems:
     1. most applications don't know how to recover safely from an EIO
        error.
     2. You lose data.

Cheers
  Trond
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