All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andi Kleen <ak@muc.de>
To: Joe Korty <joe.korty@ccur.com>
Cc: shemminger@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] possible erronous use of tick_usec in do_gettimeofday
Date: Fri, 28 Nov 2003 02:29:30 +0100	[thread overview]
Message-ID: <m3oeuxwa9x.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <VOyG.w9.35@gated-at.bofh.it> (Joe Korty's message of "Tue, 25 Nov 2003 17:50:47 +0100")

Joe Korty <joe.korty@ccur.com> writes:

> test10's version of do_gettimeofday is using tick_usec which is
> defined in terms of USER_HZ not HZ.
>
> Against 2.6.0-test10-bk1.  Compiled, not tested, for comment only.
>

I added the changes to x86-64, but at least ping still complains 
that the time is going backwards. The machine is running ntpd
and has a high drift (AMD 8111 chipset, doesn't have the most stable
timer in the world)

-Andi

  parent reply	other threads:[~2003-11-28  1:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <LphK.2Dl.15@gated-at.bofh.it>
     [not found] ` <Lq47.3Go.11@gated-at.bofh.it>
     [not found]   ` <LqGL.4zF.11@gated-at.bofh.it>
     [not found]     ` <LAPN.1dU.11@gated-at.bofh.it>
     [not found]       ` <LGLz.1h2.5@gated-at.bofh.it>
2003-10-28 19:19         ` gettimeofday resolution seriously degraded in test9 David Mosberger-Tang
2003-10-28 19:59           ` Stephen Hemminger
2003-10-29  0:19             ` David Mosberger
     [not found]         ` <LVAR.4Mb.3@gated-at.bofh.it>
     [not found]           ` <M4uv.bw.5@gated-at.bofh.it>
     [not found]             ` <M7sx.4et.13@gated-at.bofh.it>
     [not found]               ` <MsGE.8cN.19@gated-at.bofh.it>
     [not found]                 ` <MsZZ.c3.5@gated-at.bofh.it>
     [not found]                   ` <Mufp.1YL.15@gated-at.bofh.it>
     [not found]                     ` <VOyG.w9.35@gated-at.bofh.it>
2003-11-28  1:29                       ` Andi Kleen [this message]
2003-10-28  0:29 john stultz
2003-10-28  1:17 ` Stephen Hemminger
2003-10-28 11:55   ` Gabriel Paubert
2003-10-28 18:21     ` Stephen Hemminger
2003-10-29 10:07       ` Gabriel Paubert
2003-10-29 19:38         ` Stephen Hemminger
2003-10-29 22:50           ` Peter Chubb
2003-10-30 21:33             ` George Anzinger
2003-10-30 21:52               ` Richard B. Johnson
2003-10-30 23:15                 ` Peter Chubb
2003-11-25 16:42                   ` [RFC] possible erronous use of tick_usec in do_gettimeofday Joe Korty
2003-11-25 17:13                     ` Stephen Hemminger
2003-11-25 19:57                     ` George Anzinger
2003-11-25 21:12                       ` Joe Korty
2003-11-25 23:26                         ` George Anzinger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=m3oeuxwa9x.fsf@averell.firstfloor.org \
    --to=ak@muc.de \
    --cc=joe.korty@ccur.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=shemminger@osdl.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.