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Date: Wed, 8 Feb 2017 10:47:23 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: Jessica Frazelle <me@...sfraz.com>
cc: Kees Cook <keescook@...gle.com>, Xing Gao <xgao01@...il.wm.edu>,
LKML <linux-kernel@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: /proc/timer_list leaks the real pids of the associated
processes
On Tue, 7 Feb 2017, Jessica Frazelle wrote:
> So I used to use this "feature" as a hack to see if something was
> running in a k8s cluster or not because fluentd gives a lot of things
> away.
That file does not tell you at all whether something is running or not. It
merily tells you that there are timers queued.
> Runc basically decided to mask this file so it stopped happening
> though. But I think namespace aware is the right decision.
Unless you can come up with a real good argument why this is usefull beyond
debugging and crystal ball hackery, it's going to go away.
Thanks,
tglx
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