Package: kdump-tools
Version: 1:1.6.10

When the "ata_piix.prefer_ms_hyperv=0"  parameter is present, the
kdump kernel uses the legacy ata_piix IDE driver rather than the
hv_storvsc driver to access the disk. Some Hyper-V hosts do not work
with the ata_piix driver and the VM is unable to write out the vmcore.

"ata_piix.prefer_ms_hyperv=0" was originally added in Oct 2016
(https://salsa.debian.org/debian/kdump-tools/-/commit/4e7997bcd953a9c2a1c473fb20a549d3db8cae44):
at that time this kernel parameter was needed to work around a kdump
issue with old Linux kernels on old Hyper-V (e.g. Windows Server 2012
R2): see https://docs.microsoft.com/en-US/troubleshoot/windows-client/virtualization/cant-use-kdump-kexec-linux-virtual-machines-hyper-v.

Proposed solution:
The string "ata_piix.prefer_ms_hyperv=0" should be removed from debian/rules.

Thanks,
Kellen

We believe that the bug you reported is fixed in the latest version of
kdump-tools, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1011960@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
dann frazier <dannf@debian.org> (supplier of updated kdump-tools package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Thu, 09 Jun 2022 15:29:58 -0600
Source: kdump-tools
Architecture: source
Version: 1:1.7
Distribution: unstable
Urgency: medium
Maintainer: Debian Kdump <team+kdump@tracker.debian.org>
Changed-By: dann frazier <dannf@debian.org>
Closes: 1011960
Changes:
 kdump-tools (1:1.7) unstable; urgency=medium
 .
   [ Guilherme G. Piccoli ]
   * kdump-tools.service: Start kdump service a bit earlier in boot.
 .
   [ Kellen Renshaw ]
   * rules: Remove "ata_piix.prefer_ms_hyperv=0" (Closes: #1011960).
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