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From: "Andy Currid" <>
To: <>
Subject: [PATCH][2.4.26 x86_64] fix ACPI PRT entry handling
Date: Fri, 21 May 2004 15:23:22 -0700	[thread overview]
Message-ID: <> (raw)

This patch fixes a PCI interrupt routing bug that shows up when running
on x86_64 with ACPI and IOAPIC functionality enabled. Without this patch
in place, the code attempts to route all configurable PCI interrupts to
IRQ 0.


Andy Currid, NVIDIA Corporation   408 566 6743

diff -Nupr linux-2.4.26/arch/x86_64/kernel/mpparse.c
--- linux-2.4.26/arch/x86_64/kernel/mpparse.c	2004-05-21
06:39:40.000000000 -0700
+++ linux-2.4.26-patch/arch/x86_64/kernel/mpparse.c	2004-05-21
06:39:33.000000000 -0700
@@ -942,8 +942,6 @@ void __init mp_parse_prt (void)
 			irq = entry->link.index;
-		irq = entry->link.index;
   		/* Don't set up the ACPI SCI because it's already set up
                 if (acpi_fadt.sci_int == irq) {
                          entry->irq = irq; /*we still need to set
entry's irq*/

             reply	other threads:[~2004-05-21 22:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-21 22:23 Andy Currid [this message]
     [not found] <>
2004-05-23  2:58 ` Len Brown

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