From: Peter Zijlstra <peterz@infradead.org>
To: Diwakar Tundlam <dtundlam@nvidia.com>
Cc: "'Ingo Molnar'" <mingo@kernel.org>,
"'David Rientjes'" <rientjes@google.com>,
"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>
Subject: RE: [PATCH] sched: Make nr_uninterruptible count a signed value
Date: Wed, 09 May 2012 10:11:39 +0200 [thread overview]
Message-ID: <1336551100.27020.84.camel@laptop> (raw)
In-Reply-To: <1DD7BFEDD3147247B1355BEFEFE46652379C3DF10E@HQMAIL04.nvidia.com>
On Tue, 2012-05-08 at 15:46 -0700, Diwakar Tundlam wrote:
> Maybe it is an artifact of 32-bit machine displaying 64-bit print format.
> An (unsigned long)(-24) promoted to (signed long long) ends up as 4294967272.
> As seen in my output of sched_debug.
Ah, quite possible. %Ld is indeed %lld and the value is long, not long
long. So the proper fix is to fudge that printk statement somehow.
> Your machine is probably natively 64-bit.
Yeah, I gave up on 32bit computing a while ago..
next prev parent reply other threads:[~2012-05-09 8:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-08 21:39 [PATCH] sched: Make nr_uninterruptible count a signed value Diwakar Tundlam
2012-05-08 21:56 ` Peter Zijlstra
2012-05-08 22:14 ` Diwakar Tundlam
2012-05-08 22:27 ` Peter Zijlstra
2012-05-08 22:29 ` Peter Zijlstra
2012-05-08 22:46 ` Diwakar Tundlam
2012-05-09 7:49 ` Michael Wang
2012-05-09 18:55 ` Diwakar Tundlam
2012-05-10 4:46 ` Michael Wang
2012-05-09 8:11 ` Peter Zijlstra [this message]
2012-05-09 19:04 ` Diwakar Tundlam
2012-05-10 3:41 ` Michael Wang
2012-05-10 9:46 ` Peter Zijlstra
2012-05-11 2:19 ` Michael Wang
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