From: Randy Dunlap <randy.dunlap@oracle.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Sam Ravnborg <sam@ravnborg.org>,
lkml <linux-kernel@vger.kernel.org>,
dipankar@in.ibm.com, akpm <akpm@linux-foundation.org>
Subject: Re: [PATCH] rcu: fix section mismatch
Date: Mon, 21 Jan 2008 15:34:09 -0800 [thread overview]
Message-ID: <20080121153409.7511407e.randy.dunlap@oracle.com> (raw)
In-Reply-To: <200801211138.38591.rusty@rustcorp.com.au>
On Mon, 21 Jan 2008 11:38:38 +1100 Rusty Russell wrote:
> On Sunday 20 January 2008 08:25:49 Sam Ravnborg wrote:
> > On Sat, Jan 19, 2008 at 11:56:43AM -0800, Randy Dunlap wrote:
> > > rcu_online_cpu() should be __cpuinit instead of __devinit.
> >
> > So if we have:
> > CONFIG_HOTPLUG=n
> > CONFIG_HOTPLUG_CPU=y
> >
> > then this is a oops candidate.
>
> At first glance, this can't happen because all CONFIG_HOTPLUG_CPU depends on
> CONFIG_HOTPLUG or selects it, for all archs.
Mostly, but arch/mips/ seems to be different (neither depends nor selects)
unless it has changed very recently (I looked at 2.6.24-rc8).
> But CONFIG_PM_SLEEP_SMP selects CONFIG_HOTPLUG_CPU, without requiring
> CONFIG_HOTPLUG: turning on SUSPEND or HIBERNATION does this.
>
> Perhaps it's time to revisit reverse-depends for select?
It would be nice if someone did that.
---
~Randy
next prev parent reply other threads:[~2008-01-21 23:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-19 19:56 [PATCH] rcu: fix section mismatch Randy Dunlap
2008-01-19 21:25 ` Sam Ravnborg
2008-01-21 0:38 ` Rusty Russell
2008-01-21 19:08 ` Sam Ravnborg
2008-01-21 23:34 ` Randy Dunlap [this message]
2008-01-22 5:52 ` Sam Ravnborg
2008-01-22 16:20 ` Randy Dunlap
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