linux-kernel - Re: [PATCH] sched: Make nr_uninterruptible count a signed value

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 08 May 2012 23:56:32 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Diwakar Tundlam <dtundlam@...dia.com>
Cc:	'Ingo Molnar' <mingo@...nel.org>,
	'David Rientjes' <rientjes@...gle.com>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	Peter De Schrijver <pdeschrijver@...dia.com>
Subject: Re: [PATCH] sched: Make nr_uninterruptible count a signed value

On Tue, 2012-05-08 at 14:39 -0700, Diwakar Tundlam wrote:
> Declare nr_uninterruptible as a signed long to avoid garbage values
> seen in cat /proc/sched_debug when a task is moved to the run queue of
> a newly online core. This is part of a global counter where only the
> total sum over all CPUs matters.

Its late here, but do explain how any of this makes any difference what
so ever? Since all we do with that field is add/sub the whole sign issue
shouldn't matter one way or the other.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/