From: Len Brown <lenb@kernel.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing
Date: Fri, 06 Feb 2009 22:35:24 -0500 (EST) [thread overview]
Message-ID: <alpine.LFD.2.00.0902062221050.26256@localhost.localdomain> (raw)
In-Reply-To: <498CCEDB.8050708@kernel.org>
> Impact: find right nr_irqs_gsi on some systems.
>
> one system has gap between gsi.
> [ 0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
> [ 0.000000] IOAPIC[0]: apic_id 4, version 0, address 0xfec00000, GSI 0-23
> [ 0.000000] ACPI: IOAPIC (id[0x05] address[0xfeafd000] gsi_base[48])
> [ 0.000000] IOAPIC[1]: apic_id 5, version 0, address 0xfeafd000, GSI 48-54
> [ 0.000000] ACPI: IOAPIC (id[0x06] address[0xfeafc000] gsi_base[56])
> [ 0.000000] IOAPIC[2]: apic_id 6, version 0, address 0xfeafc000, GSI 56-62
> ...
> [ 0.000000] nr_irqs_gsi: 38
I've never seen gaps in GSIs.
I've never seen IOAPICs with 7 redirection table entries.
This system looks quite broken even before the probe for nr_irqs_gsi.
Do you have more information on it?
thanks,
-Len
--
Intel Open Source Technology Center
next parent reply other threads:[~2009-02-07 3:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <498CCEDB.8050708@kernel.org>
2009-02-07 3:35 ` Len Brown [this message]
2009-02-07 3:47 ` [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing Yinghai Lu
2009-02-07 7:15 ` Len Brown
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