linux-kernel - Re: [PATCH 2/5] sched: Fix cfs_bandwidth misuse of hrtimer_expires

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]

Message-ID: <20131016184144.GH2675@laptop.programming.kicks-ass.net>
Date:	Wed, 16 Oct 2013 20:41:44 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ben Segall <bsegall@...gle.com>
Cc:	mingo@...hat.com, pjt@...gle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] sched: Fix cfs_bandwidth misuse of
 hrtimer_expires_remaining

On Wed, Oct 16, 2013 at 11:16:17AM -0700, Ben Segall wrote:
> + * Requires cfs_b->lock for hrtimer_expires_remaining to be safe against the
> + * hrtimer base being cleared by __hrtimer_start_range_ns. This is possibly
> + * incorrect if we ever built with CPU_HOTPLUG.

Do clarify; most people build with hotplug enabled; due to wanting
suspend/resume stuff etc..
--
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/