Re: XFS: inode with st_mode == 0

[Jan Kasprzak <kas@fi.muni.cz>]

Jakob Oestergaard wrote:
: > I have seen the strange problem on our NFS server: yesterday I have
: > found an empty file owned by UID 0/GID 0 and st_mode == 0 in my home
: > directory (ls -l said "?--------- 1 root root 0 <date> <filename>").
: > The <filename> was correct name of a temporary file used by one of my
: > cron jobs (and the cron job was failing because it could not rewrite the file).
: > It was not possible to write to this file, so I have renamed it
: > as "badfile" for further investigation (using mv(1) on the NFS server itself).
: 
: Known problem
: 
: http://lkml.org/lkml/2004/11/23/283
: 
: Seems there is no solution yet
: 
: http://lkml.org/lkml/2004/11/30/145
: 
	Hmm, thanks for the info.

	In the meantime, I was able to reproduce this by running the
following script for an hour or so on Solaris 8 NFS client:

#!/bin/bash
FILE="testfile"
set -e
while :
do
        rm -f "$FILE"
        sleep 1
        echo trubka > "$FILE"
        sleep 1
        cat "$FILE">/dev/null
done

After some time I've got this:

emptyfile.sh: testfile: Invalid argument
$ ls -l testfile
?---------   1 root     root           0 Dec  9 14:51 testfile

-Yenya

-- 
| Jan "Yenya" Kasprzak  <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839      Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/   Czech Linux Homepage: http://www.linux.cz/ |
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