All of lore.kernel.org
 help / color / mirror / Atom feed
From: Markus Pargmann <scos@allfex.org>
To: linux-acpi@vger.kernel.org
Subject: acpi schedule() calls rely on taskswitch?
Date: Mon, 5 Sep 2011 17:46:21 +0200	[thread overview]
Message-ID: <20110905174621.1a4d2a31@aplus> (raw)

Hi,

I am currently testing an alternative CPU-scheduler and have problems when ACPI is activated.
If the scheduler does not change the currently running task after a call of schedule(), the kernel hangs with ACPI activated. The kernel has no problems with acpi=off.

Is there any ACPI code that relies on a taskswitch when calling schedule?

I saw this behaviour with linux-2.6.38.6 and an AMD Athlon II M320.

Thanks,

Markus

                 reply	other threads:[~2011-09-05 15:57 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20110905174621.1a4d2a31@aplus \
    --to=scos@allfex.org \
    --cc=linux-acpi@vger.kernel.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.