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[Fwd: [xfs-masters] [Bug 11813] New: xfs filesystem exported via nfs don

To: xfs-oss <xfs@xxxxxxxxxxx>
Subject: [Fwd: [xfs-masters] [Bug 11813] New: xfs filesystem exported via nfs don't work in]
From: Mark Goodwin <markgw@xxxxxxx>
Date: Fri, 24 Oct 2008 07:57:32 +1000
Organization: SGI Engineering
Reply-to: markgw@xxxxxxx
User-agent: Thunderbird (Windows/20080914)
looks like we better do something urgently to fix this.
Any suggestions Christoph?


-------- Original Message --------
Subject: [xfs-masters] [Bug 11813] New: xfs filesystem exported via nfs don't work in
Date: Thu, 23 Oct 2008 12:32:51 -0700 (PDT)
From: bugme-daemon@xxxxxxxxxxxxxxxxxxx
Reply-To: xfs-masters@xxxxxxxxxxx
To: xfs-masters@xxxxxxxxxxx


           Summary: xfs filesystem exported via nfs don't work in
           Product: File System
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: XFS
        AssignedTo: xfs-masters@xxxxxxxxxxx
        ReportedBy: francois.valenduc@xxxxxxxxxxxxx

Latest working kernel version:
Earliest failing kernel version:
Distribution: Gentoo
Hardware Environment:
Software Environment:
Problem Description:

With kernel, it's impossible to use a xfs filesystem  exported via
NFS. I am using gentoo and I share a portage tree mounted on an xfs filesystem
via NFS. Each time packages are fetched, the emerge process is blocked. It
seems the problematic commit is the following:

commit c068663ae65e507814545b59a8e2090f48a85613
Author: Christoph Hellwig <hch@xxxxxx>
Date:   Sun Oct 12 14:30:44 2008 +0200

    xfs: fix remount rw with unrecognized options

    commit 6c5e51dae2c37127e00be392f40842e08077e96a upstream

When we skip unrecognized options in xfs_fs_remount we should just break
    out of the switch and not return because otherwise we may skip clearing
    the xfs-internal read-only flag.  This will only show up on some
    operations like touch because most read-only checks are done by the VFS
    which thinks this filesystem is r/w.  Eventually we should replace the
XFS read-only flag with a helper that always checks the VFS flag to make
    sure they can never get out of sync.

    Bug reported and fix verified by Marcel Beister on #xfs.
    Bug fix verified by updated xfstests/189.

If I revert it, the problem doesn't occur.

Steps to reproduce:

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 Mark Goodwin                                  markgw@xxxxxxx
 Engineering Manager for XFS and PCP    Phone: +61-3-99631937
 SGI Australian Software Group           Cell: +61-4-18969583

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