Bug#880554: xen domu freezes with kernel linux-image-4.9.0-4-amd64

From	Valentin Vidic <Valentin.Vidic@CARNet.hr>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#880554: xen domu freezes with kernel linux-image-4.9.0-4-amd64
Date	2018-01-06 16:10 +0100
Message-ID	<v4YgG-2Qv-9@gated-at.bofh.it> (permalink)
References	<uHiJz-4qB-1@gated-at.bofh.it> <uMIWJ-1ZK-3@gated-at.bofh.it> <v4Xuh-2jA-1@gated-at.bofh.it> <uHiJz-4qB-1@gated-at.bofh.it> <v4Xuh-2jA-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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On Sat, Jan 06, 2018 at 03:08:26PM +0100, Yves-Alexis Perez wrote:
> According to that link, the fix seems to be configuration rather than code.
> Does this mean this bug against the kernel should be closed?

Yes, the problem seems to be in the Xen hypervisor and not the Linux
kernel itself.  The default value for the gnttab_max_frames parameter
needs to be increased to avoid domU disk IO hangs, for example:

  GRUB_CMDLINE_XEN="dom0_mem=10240M gnttab_max_frames=256"

So either close the bug or reassign it to xen-hypervisor package so
they can increase the default value for this parameter in the
hypervisor code.

-- 
Valentin

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Bug#880554: xen domu freezes with kernel linux-image-4.9.0-4-amd64 Yves-Alexis Perez <corsac@debian.org> - 2018-01-06 15:20 +0100
  Bug#880554: xen domu freezes with kernel linux-image-4.9.0-4-amd64 Valentin Vidic <Valentin.Vidic@CARNet.hr> - 2018-01-06 16:10 +0100

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