From: paulmck@linux.vnet.ibm.com (Paul E. McKenney)
To: linux-arm-kernel@lists.infradead.org
Subject: WARNING: suspicious RCU usage
Date: Fri, 15 Dec 2017 07:52:18 -0800 [thread overview]
Message-ID: <20171215155218.GB7829@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAOMZO5Cte467YdvOvg_teuKdP435nFd0_t1j6Mxtax43GqMqYw@mail.gmail.com>
On Fri, Dec 15, 2017 at 11:16:43AM -0200, Fabio Estevam wrote:
> Hi Paul,
>
> On Fri, Dec 15, 2017 at 4:38 AM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
>
> > For your amusement, I have a patch below that takes a paranoid view of
> > the possible answers to these questions. This patch is untested and
> > probably does not even build. Plus its polling loop is quite naive.
>
> I tried to build it, but if fails to link:
>
> LD vmlinux.o
> MODPOST vmlinux.o
> arch/arm/kernel/smp.o: In function `__cpu_die':
> smp.c:(.text+0x44c): undefined reference to `__bad_xchg'
> Makefile:1024: recipe for target 'vmlinux' failed
> make: *** [vmlinux] Error 1
OK, I will need to make a better choice of atomic operation.
Thank you for testing this!
Thanx, Paul
next prev parent reply other threads:[~2017-12-15 15:52 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-10 11:39 WARNING: suspicious RCU usage Peng Fan
2017-12-10 12:00 ` Russell King - ARM Linux
2017-12-10 19:07 ` Paul E. McKenney
2017-12-10 19:34 ` Russell King - ARM Linux
2017-12-10 21:39 ` Paul E. McKenney
2017-12-10 21:54 ` Russell King - ARM Linux
2017-12-10 23:16 ` Paul E. McKenney
2017-12-12 16:49 ` Paul E. McKenney
2017-12-12 16:56 ` Fabio Estevam
2017-12-12 17:21 ` Paul E. McKenney
2017-12-12 17:34 ` Russell King - ARM Linux
2017-12-12 18:11 ` Fabio Estevam
2017-12-12 19:36 ` Paul E. McKenney
2017-12-12 19:44 ` Fabio Estevam
2017-12-12 19:54 ` Russell King - ARM Linux
2017-12-12 21:05 ` Fabio Estevam
2017-12-13 9:12 ` Russell King - ARM Linux
2017-12-15 6:38 ` Paul E. McKenney
2017-12-15 13:16 ` Fabio Estevam
2017-12-15 15:52 ` Paul E. McKenney [this message]
2017-12-15 18:23 ` Paul E. McKenney
2017-12-15 20:36 ` Fabio Estevam
2017-12-15 21:34 ` Paul E. McKenney
2017-12-15 21:43 ` Fabio Estevam
2017-12-15 22:56 ` Paul E. McKenney
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=20171215155218.GB7829@linux.vnet.ibm.com \
--to=paulmck@linux.vnet.ibm.com \
--cc=linux-arm-kernel@lists.infradead.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 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).