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From: Hans-Frieder Vogt <hfvogt@arcor.de>
To: linux-kernel@vger.kernel.org
Cc: len.brown@intel.com
Subject: Re: linux-2.6.7-bk2 runs faster than linux-2.6.7 ;)
Date: Sun, 20 Jun 2004 16:36:13 +0200	[thread overview]
Message-ID: <200406201636.13058.hfvogt@arcor.de> (raw)

Hi List,

I traced the current double-speed issue for 2.6.7-bk2 on x86-64 back to an 
ACPI-change in mpparse.c. The small attached patch solved the issue at least 
on my MSI K8T Neo (Athlon 64 3200+) system.

--- linux-2.6.7-bk2.orig/arch/x86_64/kernel/mpparse.c	2004-06-19 
17:17:15.824315000 +0200
+++ linux-2.6.7-bk2/arch/x86_64/kernel/mpparse.c	2004-06-20 16:02:34.974446912 
+0200
@@ -861,7 +861,7 @@
 
 		for (idx = 0; idx < mp_irq_entries; idx++)
 			if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
-				(mp_irqs[idx].mpc_dstapic == ioapic) &&
+				(mp_irqs[idx].mpc_dstapic == intsrc.mpc_dstapic) &&
 				(mp_irqs[idx].mpc_srcbusirq == i ||
 				mp_irqs[idx].mpc_dstirq == i))
 					break;

-- 
--
Hans-Frieder Vogt                 e-mail: hfvogt (at) arcor (dot) de

             reply	other threads:[~2004-06-20 14:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-20 14:36 Hans-Frieder Vogt [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-06-20  2:31 linux-2.6.7-bk2 runs faster than linux-2.6.7 ;) Hemmann, Volker Armin
2004-06-20  4:16 ` Tim Connors
2004-06-19 21:07 Florin Iucha
2004-06-19 21:22 ` Manuel Arostegui Ramirez
2004-06-19 23:17 ` Dominik Karall
2004-06-19 23:05   ` Andrew Morton
2004-06-20  0:07     ` Dominik Karall
2004-06-19 23:23       ` Andrew Morton
2004-06-20  0:37         ` Dominik Karall
2004-06-20  0:30           ` Zwane Mwaikambo
2004-06-20  0:58             ` Dominik Karall
2004-06-20 23:15         ` Andries Brouwer
2004-06-20  3:05     ` Florin Iucha

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