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From: Anton Blanchard <anton@samba.org>
To: pj@sgi.com, simon.derr@bull.net
Cc: nathanl@austin.ibm.com, linux-kernel@vger.kernel.org
Subject: cpusets not cpu hotplug aware
Date: Mon, 21 Aug 2006 23:27:09 +1000	[thread overview]
Message-ID: <20060821132709.GB8499@krispykreme> (raw)


Hi,

We have a bug report where sched_setaffinity fails for cpus that are
hotplug added after boot. Nathan found this suspicious piece of code:

void __init cpuset_init_smp(void)
{
        top_cpuset.cpus_allowed = cpu_online_map;
        top_cpuset.mems_allowed = node_online_map;
}

Any reason we statically set the top level cpuset to the boot time cpu
online map?

Anton

             reply	other threads:[~2006-08-21 13:27 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-21 13:27 Anton Blanchard [this message]
2006-08-21 13:54 ` cpusets not cpu hotplug aware Simon Derr
2006-08-21 17:43 ` Paul Jackson
2006-08-21 19:21   ` Anton Blanchard
2006-08-21 20:42     ` [PATCH] cpuset code prevents binding tasks to new cpus Nathan Lynch
2006-08-21 23:04       ` Paul Jackson
2006-08-21 23:27         ` Nathan Lynch
2006-08-22  4:42           ` Paul Jackson
2006-08-22  5:07             ` Andrew Morton
2006-08-21 21:01     ` cpusets not cpu hotplug aware Paul Jackson
2006-08-22  4:51       ` Andrew Morton
2006-08-22  5:04         ` Nathan Lynch
2006-08-22  5:11           ` Andrew Morton
2006-08-22  5:14           ` Paul Jackson
2006-08-23 22:11             ` Nathan Lynch
2006-08-23 22:39               ` Paul Jackson
2006-08-23 23:39                 ` Nathan Lynch
2006-08-24  2:19                   ` Paul Jackson
2006-08-23 23:49               ` Nathan Lynch
2006-08-24  0:12                 ` Andrew Morton
2006-08-24  0:48                   ` [PATCH] cpuset code prevents binding tasks to new cpus Nathan Lynch
2006-08-24  2:54                   ` cpusets not cpu hotplug aware Paul Jackson
2006-08-22  5:06         ` Paul Jackson
2006-08-22  5:14           ` Andrew Morton
2006-08-22  5:21             ` Paul Jackson
2006-08-23 14:58             ` Anton Blanchard
2006-08-23 18:59               ` Paul Jackson
2006-08-23 19:08               ` Paul Jackson

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