From: Andi Kleen <andi@firstfloor.org>
To: Andy Gospodarek <andy@greyhouse.net>
Cc: netdev@vger.kernel.org, amwang@redhat.com, fubar@us.ibm.com
Subject: Re: [PATCH 2.6.35] bonding: prevent netpoll over bonded interfaces
Date: Sat, 26 Jun 2010 00:31:50 +0200 [thread overview]
Message-ID: <87y6e2d9rd.fsf@basil.nowhere.org> (raw)
In-Reply-To: <20100625195044.GQ7497@gospo.rdu.redhat.com> (Andy Gospodarek's message of "Fri, 25 Jun 2010 15:50:44 -0400")
Andy Gospodarek <andy@greyhouse.net> writes:
> Support for netpoll over bonded interfaces was added here:
>
> commit f6dc31a85cd46a959bdd987adad14c3b645e03c1
> Author: WANG Cong <amwang@redhat.com>
> Date: Thu May 6 00:48:51 2010 -0700
>
> bonding: make bonding support netpoll
>
> but it is bad enough that we should probably just disable netpoll over
> bonding until some of the locking logic in the bonding driver is changed
> or converted completely to RCU. Simple actions like changing the active
> slave in active-backup mode will hang the box if a high enough printk
> debugging level is enabled.
Normally you just need to prevent the printks when called from poll
context. That's not rocket science.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-06-25 22:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-25 19:50 [PATCH 2.6.35] bonding: prevent netpoll over bonded interfaces Andy Gospodarek
2010-06-25 22:31 ` Andi Kleen [this message]
2010-06-25 22:52 ` Jay Vosburgh
2010-06-29 6:54 ` David Miller
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=87y6e2d9rd.fsf@basil.nowhere.org \
--to=andi@firstfloor.org \
--cc=amwang@redhat.com \
--cc=andy@greyhouse.net \
--cc=fubar@us.ibm.com \
--cc=netdev@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.