Re: [BUG] knfsd causes file system corruption when files are locked.

[Ivan Kanis <ivank@wrq.com>]

> On Wednesday November 15, ivank@wrq.com wrote:
    Ivan> [1.] knfsd causes file system corruption when files are locked.
    Ivan>
    Ivan> [2.] Lock down a file using the NLM_SHARE sharing
    Ivan> mechanism. Remove the file. Unlock the file using
    Ivan> NLM_UNSHARE. The filesystem does not recover the file space. I
    Ivan> am running this on ext2fs. Fsck-ing the filesystem does not
    Ivan> help. The only way to recover the space is to reformat the
    Ivan> partition.
    Ivan>
    Ivan> [3.] knfsd, lock, NLM_SHARE, NLM_UNSHARE
    Ivan>
    Ivan> [4.] Linux version 2.2.16 (root@jedi) (gcc version 2.7.2.3)


>>>>> "Neil" == Neil Brown <neilb@cse.unsw.edu.au> writes:

    Neil> Lots of changes have gone into knfsd since 2.2.16.  Could
    Neil> you please try again with either a later 2.2.18pre kernel,
    Neil> or 2.2.16 with patches from
    Neil>    http://nfs.sourceforge.net/
    Neil> applied?  Thanks.

    Neil> Quick guide is:
    Neil>     2.2.16
    Neil>   plus
    Neil>     http://www.fys.uio.no/~trondmy/src/nfsv3-old/linux-2.2.16-nfsv3-0.22.0.dif.bz2
    Neil>   plus
    Neil>     http://download.sourceforge.net/nfs/kernel-nfs-dhiggen_merge-2.0.gz

    Neil> NeilBrown

I can reproduce the bug using:

Linux version 2.2.18pre21 (root@jedi) (gcc version 2.7.2.3)

I don't have to type vers=2 to mount a linux nfs share on Solaris
(yeah!)

Ivan

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