linux-kernel - Re: bug report: irq 19: nobody cared (try booting with the "irqpoll" option)

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Date:	Fri, 16 Dec 2011 10:02:27 +0100
From:	Julian Sikorski <belegdol@...il.com>
To:	Clemens Ladisch <clemens@...isch.de>
CC:	linux1394-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: bug report: irq 19: nobody cared (try booting with the "irqpoll"
 option)

W dniu 16.12.2011 09:37, Clemens Ladisch pisze:
> Julian Sikorski wrote:
>> W dniu 15.12.2011 18:49, Clemens Ladisch pisze:
>>> Was it the JMB38x that used a wrong interface number in its PCIe
>>> transactions, which would make the I/O-MMU map it to the wrong device?
>>> [...]
>>> add the kernel parameter intel_iommu=off to the boot loader.
>>
>> This did not work
> 
>> 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
>>         Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
>> 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4
>>         Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
>> ...
>> 03:00.0 Ethernet controller: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller (rev 05)
>> 03:00.1 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 90)
>> 03:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 90) (prog-if 01)
>> 03:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 90)
>> 05:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller (prog-if 10 [OHCI])
> 
> Sorry, I didn't notice before that your FireWire controller is
> a physically separate chip on another PCIe port, so whatever is
> happening is unlikely to be related with another device.
> 
> It appears that the JMB381 is not correctly reinitialized when doing
> a suspend/resume.  However, the driver already does a reset of the chip,
> so it isn't clear what else could be done.  This might be a problem
> with the PCI initialization as done by the BIOS; try a BIOS update, if
> possible.
> 
> 
> Regards,
> Clemens

I am already running the latest BIOS.
Is there a quirk list somewhere which would force irqpoll for certain
machines/drivers?

Julian
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