Bug#903767: 4.9.110-1 Xen PV boot workaround
- To: Benoît Tonnerre <bevito@gmail.com>
- Cc: 903821@bugs.debian.org, 903885@bugs.debian.org, 903800@bugs.debian.org, 903767@bugs.debian.org, seb.debian@koocotte.org, micredd@gmail.com, andy@strugglers.net, jaap@jaapeldering.nl, vincent@vinc17.net, robbyke@gmail.com, luismi@redparra.com, sherpya@netfarm.it, jered@convivian.com, Valentin.Vidic@carnet.hr
- Subject: Bug#903767: 4.9.110-1 Xen PV boot workaround
- From: Hans van Kranenburg <hans@knorrie.org>
- Date: Tue, 17 Jul 2018 12:23:22 +0200
- Message-id: <[🔎] b9fef4d9-8263-7b73-43b9-4a28287d14c1@knorrie.org>
- Reply-to: Hans van Kranenburg <hans@knorrie.org>, 903767@bugs.debian.org
- In-reply-to: <[🔎] CAGoqP1qG7gMnOG9JOi7QR33+bxotAa9QXUGJHJVsaPiK=mJRHA@mail.gmail.com>
- References: <[🔎] 56479d19-0dc3-c70b-9a7d-2aa8c755f4c3@knorrie.org> <[🔎] CAGoqP1qG7gMnOG9JOi7QR33+bxotAa9QXUGJHJVsaPiK=mJRHA@mail.gmail.com> <[🔎] 1531575836.1920.1.camel@gmail.com>
On 07/17/2018 12:39 AM, Benoît Tonnerre wrote:
> Hi,
>
> I tested this workaround : I confirm that it works on Xen host, but not
> on Xen guest.
> If you try to start a vm with latest kernel i.e. theses parameters in
> cfg file :
>
> #
> # Kernel + memory size
> #
> kernel = '/boot/vmlinuz-4.9.0-7-amd64'
> extra = 'elevator=noop'
> ramdisk = '/boot/initrd.img-4.9.0-7-amd64'
>
> The VM crash in loop with kernel error :
>
> [...]
>
> Did I miss something ?
Yes, the pti=off needs to go in your extra line:
extra = 'elevator=noop pti=off'
Hans
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