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Bug#513256: release-notes: Risc of loss of data on s390 architecture when running under not fully updated z/VM.



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Package: release-notes
Severity: important

The release notes should warn that running Debian Lenny under z/VM
5.3 prior to service level 802 will likely lead to filesystem corruption
and at least RSU 5305 should be applied before running or upgrading to
Lenny.

Starting with Kernel 2.6.25, Linux on the s390 architecture running
under z/VM hypervisor uses a new CCW for DASD access that triggers an
error in z/VM leading to I/O errors and finally file system inconsistency.

This error could be confirmed running z/VM 5.3 with RSU (Recommended
Service Update) 5304 and was fixed by IBM in RSU 5305 (service level 802).

IBM problem report:
http://www-01.ibm.com/support/docview.wss?uid=isg1VM64417
(in the problem report a z/OS guest ist mentioned, nevertheless this
problem also affects linux guests).

Greetings,
Martin

- -- System Information:
Debian Release: 5.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: s390 (s390x)

Kernel: Linux 2.6.26-1-s390x (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

- --
- ------------------------------------------------------------------------
Martin Grimm
IT-Consultant

Millenux GmbH                      Tel. +49 711 88770-178
Lilienthalstraße 2/1               Fax  +49 711 88770-349
70825 Korntal/Stuttgart            martin.grimm@millenux.com
http://www.millenux.com

Geschäftsführer: Markus Klingspor, Thomas Uhl
Sitz und Amtsgericht Stuttgart, HRB 21058
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