Hi,

I don't know this is the right thing to do or not.
I have not gotten any response from one week ago.
I forward my question to developer group. Hopefully I can get a help.
Thanks in advance.

Bob

---------- Forwarded message ----------
From: <[email protected]>
Date: Tue, Feb 23, 2010 at 9:00 AM
Subject: Pvfs2-users Digest, Vol 49, Issue 15
To: [email protected]


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Today's Topics:

  1. Re: Pvfs2-users Digest, Vol 49, Issue 14 (BOB LIU)
  2. Pvfs2 client crashes with libaio1 version 0.3.107-3 (Zoe Sebepou)


----------------------------------------------------------------------

Message: 1
Date: Mon, 22 Feb 2010 13:27:46 -0800
From: BOB LIU <[email protected]>
Subject: [Pvfs2-users] Re: Pvfs2-users Digest, Vol 49, Issue 14
To: [email protected]
Message-ID:
       <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"

Can any one give me a help?

Thanks in advance.

Bob

On Fri, Feb 19, 2010 at 9:00 AM, <
[email protected]> wrote:

> Send Pvfs2-users mailing list submissions to
>        [email protected]
>
> To subscribe or unsubscribe via the World Wide Web, visit
>        http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
> or, via email, send a message with subject or body 'help' to
>        [email protected]
>
> You can reach the person managing the list at
>        [email protected]
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Pvfs2-users digest..."
>
>
> Today's Topics:
>
>   1. Re: pvfs2-NFS error (BOB LIU)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 18 Feb 2010 22:52:06 -0800
> From: BOB LIU <[email protected]>
> Subject: Re: [Pvfs2-users] pvfs2-NFS error
> To: Sam Lang <[email protected]>, [email protected]
> Message-ID:
>        <[email protected]>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Sam,
>
> My purpose is to let client very easy to connect to server, no any extra
> installation needed in client site. That's why I put NFS on the top of the
> system.
>
> The good news is if I changed to 32 bit (version 2.8.2), it works. No such
> error.
> Is there anyone can give me help to let me understand why 64 bit doesn't
> work?
>
> Thanks in advance,
>
> Bob
>
>
>
> On Wed, Feb 17, 2010 at 1:08 PM, Sam Lang <[email protected]> wrote:
>
> >
> > Hi Bob,
> >
> > I'm not sure yet why you get that error, but I have a question about
your
> > setup.  Why not just mount PVFS on the client machine, instead of trying
> to
> > use NFS?  That may work around the problem you're seeing.
> >
> > -sam
> >
> >  On Feb 17, 2010, at 11:55 AM, BOB LIU wrote:
> >
> >  Hi Sam,
> >
> > Thank you for your response.
> >
> > Here is the NFS/PVFS setup:
> > 1) PVFS setup:
> >     1 meta server and 1 io server
> >     both have pvfs2 installed and started without error
> >     pvfs2-ping -m /mnt/pvfs2 shows no error.
> >     on meta server:
> >     run the following:
> >       a)  /sbin/insmod /usr/local/bin/pvfs2/pvfs2.ko
> >       b)  /usr/local/bin/pvfs2/sbin/pvfs2-client -p
> > /usr/local/bin/pvfs2/sbin/pvfs2-client-core
> >       c)  mount -t pvfs2 tcp://meta_server:3334/pvfs2-fs /mnt/pvfs2
> >  2) NFS setup on meta_server:
> >       a)  Created /etc/exports file:
> >                /mnt/pvfs2 *(sw,sync,fsid=0,insecure,no_subtree_check)
> >       b)   run:
> >                exportfs -rav
> >                rpc.mountd
> >                rpc.nfsd 8
> >       c) On a NFS client machine:
> >              run:
> >                 showmount -e meta-server
> >              it display /mnt/pvfs2 exported to everyone
> >
> >              mkdir /testmnt
> >              mount meta_server:/mnt/pvfs2 /testmnt
> >
> >              mount was successful without error
> >              df -h sees NFS mounted directory /testmnt on meta_server
> >              cd /testmnt successful without error
> >              mkdir test successful without error
> >              cd test shows the error:
> >
> >           Feb  14 04:55:43 meta_server1 kernel:
> >
> > /usr/opt/64bit_pvfs2_pkgs/pvfs-2.8.1/src/kernel/linux-2.6/pvfs2-utils.c
> line
> >           464: Critical error: Invalid handle despite using iget4/iget5
> >
> >     3) Samething happened for PVFS2-2.8.2
> >
> > Bob
> >
> > On Tue, Feb 16, 2010 at 8:58 AM, Sam Lang <[email protected]> wrote:
> >
> >>
> >> On Feb 15, 2010, at 11:04 PM, BOB LIU wrote:
> >>
> >> > Hi,
> >> >
> >> > I got a following error:
> >> > Feb  14 04:55:43 meta_server1 kernel:
> >> /usr/opt/64bit_pvfs2_pkgs/pvfs-2.8.1/src/kernel/linux-2.6/pvfs2-utils.c
> line
> >> 464: Critical error: Invalid handle despite using iget4/iget5
> >> > My situation is:
> >> >
> >> > 1) Hardware x86 64bit machines
> >> >
> >> > 2) 64bit CentOS Linux likes Redhat OS
> >> >
> >> > 3) Client can NFS mount to the directory without a problem. but when
> cd
> >> to the sub directory it failed and showed the error
> >>
> >> Bob, can you give us some more details about your NFS/PVFS setup?
 Which
> >> directory are you NFS mounting?  Usually PVFS and NFS mounts are
> separate.
> >>
> >> -sam
> >>
> >> >
> >> > This error is for the version 2.8.1. The same error displayed for
> >> version 2.8.2.
> >> >
> >> > Can anyone help me? Thanks in advance.
> >> >
> >> > Bob
> >>  > _______________________________________________
> >> > Pvfs2-users mailing list
> >> > [email protected]
> >> > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
> >>
> >>
> >
> >
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------------------------------

Message: 2
Date: Tue, 23 Feb 2010 13:55:19 +0200
From: Zoe Sebepou <[email protected]>
Subject: [Pvfs2-users] Pvfs2 client crashes with libaio1 version
       0.3.107-3
To: [email protected]
Message-ID:
       <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"

Hello,

I'm trying to use libaio but the client module crashes resulting in kernel
panic both in pvfs2 versions 2.8.1 and 2.8.2.
The libaio version used is 0.3.107-3, and my kernel version is 2.6.18.8
x86_64.

You can reproduce the problem using a simple copy test from the following
man page: http://man.cx/io(3)
Also, I have noticed that writing asynchronously works without any problem.
The crash appears when I attempt to issue read requests asynchronously.
In my code, the calls used are the io_submit and the io_getevents.

Thank you in advance,
--
Zoe Sebepou
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