From: Troy Benjegerdes <hozer@drgw.net>
To: Jean-Denis Boyer <jdboyer@mediatrix.com>
Cc: trini@mvista.com, mgreer@mvista.com,
"'Jim Thompson'" <jim@musenki.com>,
linuxppc-embedded@lists.linuxppc.org
Subject: Re: Bogomips and loops_per_jiffy
Date: Wed, 8 May 2002 13:06:06 -0500 [thread overview]
Message-ID: <20020508130606.E16602@altus.drgw.net> (raw)
In-Reply-To: <F1BED55F35F4D3118C0F00E0295CFF4DFFA000@mail.mediatrix.com>; from jdboyer@mediatrix.com on Wed, May 08, 2002 at 12:53:39PM -0400
On Wed, May 08, 2002 at 12:53:39PM -0400, Jean-Denis Boyer wrote:
>
> Troy,
> with the patch, now, it completely hangs.
> The reason is that in timer_interrupt()
>
> while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) < 0)
> {
>
> Now that next_dec is unsigned, this condition is always false.
Yeah, I was a little too quick to go messing with tb_delta. Benh and I
were talking on IRC and the original code does a bunch of signed vs
unsigned stuff and should probably be made more explicit as to what it's
actually doing. (Especially since I don't completely understand the
intention of this code yet)
> Here is another patch I suggest to replace yours.
> Its in attachement to this email.
> I tested it, and it seems OK.
>
> I did not include your modification made to the type of local variables in
> function do_settimeofday().
> I do not see how it is related to our problem.
>
I got carried away cleaning up stuff ;)
--
Troy Benjegerdes | master of mispeeling | 'da hozer' | hozer@drgw.net
-----"If this message isn't misspelled, I didn't write it" -- Me -----
"Why do musicians compose symphonies and poets write poems? They do it
because life wouldn't have any meaning for them if they didn't. That's
why I draw cartoons. It's my life." -- Charles Schulz
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-05-08 18:06 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-08 16:53 Bogomips and loops_per_jiffy Jean-Denis Boyer
2002-05-08 17:43 ` Benjamin Herrenschmidt
2002-05-08 22:13 ` Gabriel Paubert
2002-05-09 15:08 ` Troy Benjegerdes
2002-05-09 16:16 ` Gabriel Paubert
2002-05-08 18:06 ` Troy Benjegerdes [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-05-10 14:54 Jean-Denis Boyer
2002-05-10 20:15 ` Gabriel Paubert
2002-05-10 21:16 ` Benjamin Herrenschmidt
2002-05-11 2:08 ` Gabriel Paubert
2002-05-10 14:46 Jean-Denis Boyer
2002-05-10 14:15 Petersen, David (MED, GEMS-IT)
2002-05-10 14:10 Jean-Denis Boyer
2002-05-10 14:23 ` Allen Curtis
2002-05-10 15:06 ` Jerry Van Baren
2002-05-10 14:27 ` Gabriel Paubert
2002-05-10 14:29 ` Gabriel Paubert
2002-05-10 14:39 ` Allen Curtis
2002-05-08 18:30 Jean-Denis Boyer
2002-05-06 21:17 Jean-Denis Boyer
2002-05-08 0:48 ` Troy Benjegerdes
2002-04-22 15:57 Jean-Denis Boyer
2002-04-19 11:57 Jim Thompson
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