From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Cc: grant.likely@linaro.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] powerpc/pseries: dynamically added OF nodes need to call of_node_init
Date: Thu, 10 Jul 2014 08:40:33 -0500 [thread overview]
Message-ID: <53BE97D1.1070000@linux.vnet.ibm.com> (raw)
In-Reply-To: <1404959630.27178.1.camel@concordia>
On 07/09/2014 09:33 PM, Michael Ellerman wrote:
> On Wed, 2014-07-09 at 21:20 -0400, Tyrel Datwyler wrote:
>> Commit 75b57ecf9 refactored device tree nodes to use kobjects such that they
>> can be exposed via /sysfs. A secondary commit 0829f6d1f furthered this rework
>> by moving the kobect initialization logic out of of_node_add into its own
>> of_node_init function. The inital commit removed the existing kref_init calls
>> in the pseries dlpar code with the assumption kobject initialization would
>> occur in of_node_add. The second commit had the side effect of triggering a
>> BUG_ON as a result of dynamically added nodes being uninitialized.
>
> So does this mean DLPAR is broken since 0829f6d1f (3.15-rc1)?
Yes. Partition migration would also be affected by this.
-Nathan
>
> If so this should have a Cc: stable@kernel.org shouldn't it?
>
> And the latest trend is to also add:
>
> Fixes: 0829f6d1f69e ("of: device_node kobject lifecycle fixes")
>
> cheers
>
>
next prev parent reply other threads:[~2014-07-10 13:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-10 1:20 [PATCH] powerpc/pseries: dynamically added OF nodes need to call of_node_init Tyrel Datwyler
2014-07-10 2:33 ` Michael Ellerman
2014-07-10 13:40 ` Nathan Fontenot [this message]
2014-07-10 18:36 ` Tyrel Datwyler
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=53BE97D1.1070000@linux.vnet.ibm.com \
--to=nfont@linux.vnet.ibm.com \
--cc=grant.likely@linaro.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=tyreld@linux.vnet.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;
as well as URLs for NNTP newsgroup(s).