linux-kernel - Re: 2.6.18-rc4-mm1 - time moving at 3x speed, bisect finished

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Message-ID: <Pine.LNX.4.64.0608202120180.6761@scrub.home>
Date:	Sun, 20 Aug 2006 21:24:05 +0200 (CEST)
From:	Roman Zippel <zippel@...ux-m68k.org>
To:	thunder7@...all.nl
cc:	Helge Hafting <helgehaf@...el.hist.no>, Andi Kleen <ak@...e.de>,
	john stultz <johnstul@...ibm.com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.18-rc4-mm1 - time moving at 3x speed, bisect finished

Hi,

On Sun, 20 Aug 2006, thunder7@...all.nl wrote:

> The interesting part:
> 
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22
> 3b9aca0000000000,d2ea237f00000000,d2ea237f00000000,35fe7fdef9db22

Thanks for testing, it's a silly sign problem. gcc turned the divide into 
an unsigned one.

bye, Roman

Signed-off-by: Roman Zippel <zippel@...ux-m68k.org>

---
 kernel/time/ntp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6-mm/kernel/time/ntp.c
===================================================================
--- linux-2.6-mm.orig/kernel/time/ntp.c
+++ linux-2.6-mm/kernel/time/ntp.c
@@ -41,7 +41,7 @@ static long time_reftime;		/* time at la
 long time_adjust;
 
 #define CLOCK_TICK_OVERFLOW	(LATCH * HZ - CLOCK_TICK_RATE)
-#define CLOCK_TICK_ADJUST	(((s64)CLOCK_TICK_OVERFLOW * NSEC_PER_SEC) / CLOCK_TICK_RATE)
+#define CLOCK_TICK_ADJUST	(((s64)CLOCK_TICK_OVERFLOW * NSEC_PER_SEC) / (s64)CLOCK_TICK_RATE)
 
 static void ntp_update_frequency(void)
 {
-
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