From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: "Matthew C. Dobson [imap]" <colpatch@us.ibm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: sched domains bringup race?
Date: Fri, 16 Jul 2004 13:46:36 +1000 [thread overview]
Message-ID: <40F74F9C.8080205@yahoo.com.au> (raw)
In-Reply-To: <1089948659.6886.2.camel@nighthawk>
Dave Hansen wrote:
> On Thu, 2004-07-15 at 20:03, Nick Piggin wrote:
>
>>It shouldn't because sched_init sets up dummy domains for
>>all runqueues.
>>
>>Obviously something is going wrong somewhere though.
>
>
> Hmmm, but there still might be some concurrency problems, right? There
> isn't any locking while the setup is being done, so are all of the
> intermediate initialization states valid? Or, could one of the CPUs be
> catching the init code in the middle of an operation?
>
cpu_attach_domain is supposed to be able to do the switchover
without any races.
next prev parent reply other threads:[~2004-07-16 4:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-16 2:13 sched domains bringup race? Dave Hansen
2004-07-16 3:03 ` Nick Piggin
2004-07-16 3:30 ` Dave Hansen
2004-07-16 3:46 ` Nick Piggin [this message]
2004-07-16 5:27 ` Nick Piggin
2004-07-18 20:45 ` Keshavamurthy Anil S
2004-07-19 7:31 ` Nick Piggin
2004-07-22 21:55 ` Nathan Lynch
2004-07-22 23:23 ` Keshavamurthy Anil S
2004-07-23 0:33 ` Nick Piggin
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