[OpenAFS] possible microsoft excel 2010 corruption issue on openafs volumes

[Jeffrey Altman]

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig37474B55E26CAC049E1A39D6
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Its not a Windows client bug although it is noticed on Windows.
The issue is in 1.6.0 and occurs on volumes with .backup volumes.

A fix will be in 1.6.1.


On 12/7/2011 6:50 PM, Jonathan Nilsson wrote:
> Hello,
>=20
> We've had some strange file corruption and missing data issues with
> Microsoft Excel 2010 on a Windows 7 OpenAFS 1.5.78 client.
>=20
> 1) A user creates an Excel file on their local drive, then copies it to=

> an AFS RW mount point (via mapped network drive).
> 2) several clients read the file (no changes made)
> 3) at some point the file is no longer able to be opened, or it opens
> but warns of corruption and missing data
>=20
> When I recover the file from the backup on the day of the file's
> modification timestamp, the restored file is fine. Curiously, the
> restored file appears identical to the corrupted file: the file size
> (bytes) and timestamp are identical.
>=20
> The fileservers housing volumes where this has happened are:
>  CentOS 6.0 2.6.32-71.29.1.el6.x86_64 with OpenAFS 1.6.0
>  RHEL 6.1 2.6.32-131.2.1.el6.x86_64 with OpenAFS 1.4.14
>=20
> We have upgraded the client to OpenAFS 1.7.2 (we did this just before
> the 1.7.3 announcement) hoping to fix the issue if it is a bug... Is
> there any known issue with 1.5.78 client that could have caused
> corruption like this?
>=20
> --=20
> Jonathan.Nilsson at uci dot edu
> Social Sciences Computing Services
> SSPB 1265 | 949.824.1536
>=20


--------------enig37474B55E26CAC049E1A39D6
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)

iQEcBAEBAgAGBQJO4A19AAoJENxm1CNJffh4uUoIALpuMiHb0ay8LGBcCPD3YRgx
S+/FuIWIiSV30whRTZdJ/h08oWI6KFUWjBAtGxOoBn640hHY+AEB4/E3pjYJGRK/
fVCHKGeVuG2hgclH6tgThL9Ckgs8Z1wwN+9itVz8YTkf+YFEfvxjnDj76ZC5dyVW
KcfvknCuPT/VJ7aKAHQe+8kF0+jgX1xbq5LYst0XYe/YVgwAjokWZQu/QTnAJyrO
0Yb1zY+s6Xxh885q4xIcaZ646O4HDv8zAVaRMJO4FQH+lijjHtd4s8ysPpp2Sl/r
3jVX5WQ+DLnF6a1KBnYMsAYlQHiILt+TVvLce3vNl5XPhn6zt45VAm+5Z2IeD7E=
=8uLo
-----END PGP SIGNATURE-----

--------------enig37474B55E26CAC049E1A39D6--