public inbox for linux-s390@vger.kernel.org
 help / color / mirror / Atom feed
From: Guenter Roeck <linux@roeck-us.net>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-kernel@vger.kernel.org,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux-s390@vger.kernel.org
Subject: Qemu problems in -next with 's390/spinlock: add niai spinlock hints'
Date: Tue, 25 Jul 2017 18:14:51 -0700	[thread overview]
Message-ID: <20170726011451.GA24947@roeck-us.net> (raw)

Hi Martin,

my s390 qemu tests in linux-next stopped working a few days ago.
Bisect points to commit 's390/spinlock: add niai spinlock hints'.

Looking at the patch, this isn't really surprising; at least to me it looks
like the patch is making instructions mandatory which are only available in
Z14 CPUs. Does this mean that older s390 CPUs (such as the Z900 used in my
qemu tests) are no longer going to be supported in Linux ?

Thanks,
Guenter

             reply	other threads:[~2017-07-26  1:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-26  1:14 Guenter Roeck [this message]
2017-07-26  5:00 ` Qemu problems in -next with 's390/spinlock: add niai spinlock hints' Heiko Carstens
2017-07-26  5:40   ` Martin Schwidefsky
2017-07-26  6:05     ` Heiko Carstens
2017-07-26  6:31       ` Martin Schwidefsky
2017-07-26  7:26         ` Heiko Carstens
2017-07-26  9:40     ` Cornelia Huck
2017-07-26 11:48       ` Martin Schwidefsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170726011451.GA24947@roeck-us.net \
    --to=linux@roeck-us.net \
    --cc=heiko.carstens@de.ibm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=schwidefsky@de.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox