linux-kernel - Re: [parisc-linux] [RFC][PATCH] use cycle

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Message-Id: <200701030002.l0302Vx5017621@hiauly1.hia.nrc.ca>
Date:	Tue, 2 Jan 2007 19:02:31 -0500 (EST)
From:	"John David Anglin" <dave@...uly1.hia.nrc.ca>
To:	deller@....de (Helge Deller)
Cc:	linux-kernel@...r.kernel.org, parisc-linux@...ts.parisc-linux.org
Subject: Re: [parisc-linux] [RFC][PATCH] use cycle_t instead of u64 in struct

> The 32bit and 64bit PARISC Linux kernels suffers from the problem, that the gettimeofday() call sometimes returns non-monotonic times.

This certainly needs to be fixed.  I see stuff like this from ping:

64 bytes from 132.246.100.193: icmp_seq=19 ttl=255 time=0.4 ms
64 bytes from 132.246.100.193: icmp_seq=20 ttl=255 time=429496729.5 ms

tar also occasionally prints warning about times.  This is with a
32bit kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@...-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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