Bug#903800: 4.9.110-1 Xen PV boot workaround
- To: Hans van Kranenburg <hans@knorrie.org>
- Cc: Benoît Tonnerre <bevito@gmail.com>, 903821@bugs.debian.org, 903885@bugs.debian.org, 903800 <903800@bugs.debian.org>, 903767@bugs.debian.org, seb debian <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, Valentin Vidic <Valentin.Vidic@carnet.hr>
- Subject: Bug#903800: 4.9.110-1 Xen PV boot workaround
- From: Jered Floyd <jered@convivian.com>
- Date: Sun, 22 Jul 2018 16:48:35 -0400 (EDT)
- Message-id: <[🔎] 789966884.53004.1532292515936.JavaMail.zimbra@convivian.com>
- Reply-to: Jered Floyd <jered@convivian.com>, 903800@bugs.debian.org
- In-reply-to: <[🔎] b9fef4d9-8263-7b73-43b9-4a28287d14c1@knorrie.org>
- References: <[🔎] 56479d19-0dc3-c70b-9a7d-2aa8c755f4c3@knorrie.org> <[🔎] CAGoqP1qG7gMnOG9JOi7QR33+bxotAa9QXUGJHJVsaPiK=mJRHA@mail.gmail.com> <[🔎] b9fef4d9-8263-7b73-43b9-4a28287d14c1@knorrie.org> <[🔎] 20180715002704.GA12711@joooj.vinc17.net>
It appears that this ticket has been closed, noting a fix in linux-4.9.110-2 (source pkg). Will this replace the current linux-image-4.9.0-7-amd64 in stretch soon? It's currently making stretch unusable with Xen.
--Jered
----- On Jul 17, 2018, at 6:23 AM, Hans van Kranenburg hans@knorrie.org wrote:
> 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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