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Re: [Q] ide cdrom in native mode leads to irq storm? [message #7853 is a reply to message #7754]

Fri, 27 October 2006 13:17

vaverin
Messages: 708
Registered: September 2005

Senior Member

Vasily Averin wrote:
> Vasily Averin wrote:
>> there is node with Intel 7520-based motherboard (MSI-9136), IDE cdrom (hda) and
>> SATA disc and 2.6.19-rc3 linux kernel.
>>
>> When I set IDE controller into the native mode, I get irq storm on the node and
>> this interrupt is disabled. If this interrupt is shared, the other subsystems
>> are stop working too.
>>
>> When I switch the IDE controller into legacy mode, all works correctly.

I have reproduced the same issue on the another node:

ASUSTeK P5GD1-VM,
Intel 915G chipset,
ICH6 IDE controller,
IDE dvdrom: SONY DVD-ROM DDU1615 (hda),
sata disk: WDC WD1600JS-00M

when I switch IDE controller to the native mode, I see "Disabling IRQ" message,
then kernel generates an oops in create_empty_buffers(), like I've reported earlier.

Could somebody please help me to troubleshoot this issue? I've seen this issue
on the customer nodes and would like to know how I can work-around this issue
without any changes inside motherboard BIOS.

thank you,
Vasily Averin

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[Message index]

		[Q] ide cdrom in native mode leads to irq storm? By: vaverin on Tue, 24 October 2006 07:37
		Re: [Q] ide cdrom in native mode leads to irq storm? By: vaverin on Tue, 24 October 2006 07:53
		Re: [Q] ide cdrom in native mode leads to irq storm? By: vaverin on Fri, 27 October 2006 13:17
		Re: [Q] ide cdrom in native mode leads to irq storm? By: Alan Cox on Fri, 27 October 2006 14:19
		[Q] PCI Express and ide (native) leads to irq storm? By: vaverin on Tue, 14 November 2006 09:08
		Re: [Q] PCI Express and ide (native) leads to irq storm? By: Tejun Heo on Wed, 15 November 2006 10:46
		Re: [Q] PCI Express and ide (native) leads to irq storm? By: Jeff Garzik on Wed, 15 November 2006 18:49
		Re: [Q] PCI Express and ide (native) leads to irq storm? By: vaverin on Thu, 16 November 2006 08:45
		Re: [Q] workaround for ide (native) leads to irq storm? By: vaverin on Fri, 17 November 2006 12:54

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