From: "Ozan Çağlayan" <ozan@pardus.org.tr>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Disabling IRQ #20 problem with JMicron SATA-PATA Controller
Date: Wed, 30 Dec 2009 21:37:24 +0200 [thread overview]
Message-ID: <4B3BABF4.2060301@pardus.org.tr> (raw)
In-Reply-To: <4B3BA9D9.10102@gmail.com>
Robert Hancock wrote:
>
> You say this only happens if the JMicron controller is enabled and set
> to AHCI mode? That's odd because it's the IRQ for the main Intel
> controller that it's complaining about. If that's really the IRQ it's
> using then I wonder how the system continues booting at all after it's
> disabled. Can you post /proc/interrupts output?
>
> My other suggestions would be make sure you have the latest BIOS
> installed, and try a newer kernel if possible..
I was wrong as the issue appears randomly even if the JMicron controller
is disabled. I've already updated to the latest BIOS.
Here's the /proc/interrupts output on a system which didn't complain yet
about the IRQ issue:
CPU0 CPU1 CPU2 CPU3 CPU4
CPU5 CPU6 CPU7
20: 0 0 208895 0 0
0 0 3723 IO-APIC-fasteoi ahci
I rechecked kern.log and observed that the trace differs in terms of the
handler function:
Dec 28 11:32:07 redd kernel: [ 57.201100] Call Trace:
Dec 28 11:32:07 redd kernel: [ 57.201108] [<c01759cf>]
__report_bad_irq+0x2e/0x6f
Dec 28 11:32:07 redd kernel: [ 57.201113] [<c0175b00>]
note_interrupt+0xf0/0x148
Dec 28 11:32:07 redd kernel: [ 57.201116] [<c017601e>]
handle_fasteoi_irq+0x7d/0x9b
Dec 28 11:32:07 redd kernel: [ 57.201122] [<c0104cdb>]
handle_irq+0x3b/0x48
Dec 28 11:32:07 redd kernel: [ 57.201126] [<c0104648>] do_IRQ+0x40/0x83
Dec 28 11:32:07 redd kernel: [ 57.201130] [<c0103889>]
common_interrupt+0x29/0x30
Dec 28 11:32:07 redd kernel: [ 57.201135] [<c0108662>] ?
mwait_idle+0x6b/0x89
Dec 28 11:32:07 redd kernel: [ 57.201139] [<c01024b1>] cpu_idle+0x49/0x64
Dec 28 11:32:07 redd kernel: [ 57.201145] [<c03fde07>]
start_secondary+0xc6/0xc8
Dec 28 11:32:07 redd kernel: [ 57.201148] handlers:
Dec 28 11:32:07 redd kernel: [ 57.201149] [<f8076414>]
(ahci_interrupt+0x0/0xa8 [ahci])
Dec 28 11:32:07 redd kernel: [ 57.201158] Disabling IRQ #20
--
Dec 30 09:35:30 redd kernel: [144782.793812] Call Trace:
Dec 30 09:35:30 redd kernel: [144782.793822] [<c01759cf>]
__report_bad_irq+0x2e/0x6f
Dec 30 09:35:30 redd kernel: [144782.793827] [<c0175b00>]
note_interrupt+0xf0/0x148
Dec 30 09:35:30 redd kernel: [144782.793830] [<c017601e>]
handle_fasteoi_irq+0x7d/0x9b
Dec 30 09:35:30 redd kernel: [144782.793836] [<c0104cdb>]
handle_irq+0x3b/0x48
Dec 30 09:35:30 redd kernel: [144782.793840] [<c0104648>] do_IRQ+0x40/0x83
Dec 30 09:35:30 redd kernel: [144782.793844] [<c0103889>]
common_interrupt+0x29/0x30
Dec 30 09:35:30 redd kernel: [144782.793849] [<c0108662>] ?
mwait_idle+0x6b/0x89
Dec 30 09:35:30 redd kernel: [144782.793853] [<c01024b1>]
cpu_idle+0x49/0x64
Dec 30 09:35:30 redd kernel: [144782.793859] [<c03fde07>]
start_secondary+0xc6/0xc8
Dec 30 09:35:30 redd kernel: [144782.793862] handlers:
Dec 30 09:35:30 redd kernel: [144782.793863] [<f86c1eba>]
(ata_sff_interrupt+0x0/0xab [libata])
Dec 30 09:35:30 redd kernel: [144782.793895] [<f86c1eba>]
(ata_sff_interrupt+0x0/0xab [libata])
Dec 30 09:35:30 redd kernel: [144782.793919] Disabling IRQ #20
prev parent reply other threads:[~2009-12-30 19:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-30 9:03 Disabling IRQ #20 problem with JMicron SATA-PATA Controller Ozan Çağlayan
2009-12-30 19:28 ` Robert Hancock
2009-12-30 19:37 ` Ozan Çağlayan [this message]
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