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Date: Mon, 4 Oct 2004 16:35:11 -0700
From: Andrew Morton <akpm@osdl.org>
To: Phil Oester <kernel@linuxace.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Process start times moving in reverse on 2.6.8.1
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Phil Oester <kernel@linuxace.com> wrote:
>
> ISTR discussion on the mailing list about this problem,
> and recently upgraded from 2.6.3 to 2.6.8.1 to hopefully
> solve it, but alas the problem still exists.
> 
> Example:
> 
> # date ; ps -ef | grep ps | grep -v grep
> Mon Oct  4 14:53:39 EDT 2004
> root     29412 29351  0 14:51 pts/0    00:00:00 ps -ef
> 
> Notice the two minute difference between now and what the
> process start time is.  Uptime on this box is 48 days, so
> it is a gradual drift.
> 
> Any ideas on this?  Or has it been fixed since 2.6.8.1?

It's allegedly fixed by
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc3/2.6.9-rc3-mm2/broken-out/fix-process-start-times.patch
but I've seen no confirmation of that.