hda irq timeout

[Shyam_Iyer at Dell.com]

Yes. One of the problems with continuous messages like this is with the
ide driver polling by hal which is sometimes unnecessary and has
surfaced in problems wherein the media has been removed but the media
check keeps happening because of hald. This is what is suggested in the
earlier thread. 
 
But then there are lot of other scenarios in which you could get a
status 0xd0{Busy} and so a complete dmesg verbose log helps here. You
could also get a status 0xd0 if the firmware needs some work here. 
 
In this case it does look like the there was an error during a dma read
transfer and the ide-driver disabled dma on the DVD drive. This may be
causing the subsequent irq timeouts but I will wait for test results
from david to ascertain if we have hit the nail here.
 
Shyam Iyer
Dell Linux Engineering
________________________________

From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of
christian.peper at kpn.com
Sent: Wednesday, December 03, 2008 2:50 PM
To: linux-poweredge-Lists
Subject: RE: hda irq timeout


Thanks, good to know! :)
 
Also, someone said to configure the hald to ignore the cd-rom:
http://lists.us.dell.com/pipermail/linux-poweredge/2008-April/035948.htm
l
 
While that would certainly silence the error, I'm not sure if it's a
good solution.
Chris.


________________________________

	From: Shyam_Iyer at Dell.com [mailto:Shyam_Iyer at Dell.com] 
	Sent: Wednesday, December 03, 2008 9:53 AM
	To: Peper, J.C.A. (Christian) (IT I&O System Engineering);
linux-poweredge at lists.us.dell.com
	Subject: RE: hda irq timeout
	
	
	Yes. Dma setting looks like the culprit. The bios seems to set
the hda to "dma" but the kernel ide driver is disabling it.
	 
	David -Could you try enable dma on you hda device using hdparm
and report the results here. Also, is the DVD firmware updated?
	 
	Thanks
	Shyam Iyer
	Dell Linux Engineering

________________________________

	From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of
christian.peper at kpn.com
	Sent: Wednesday, December 03, 2008 1:52 PM
	To: linux-poweredge-Lists
	Subject: RE: hda irq timeout
	
	
	Yes we have that too! Haven't been able to put my finger on this
yet. I reported it to this list:
	
http://lists.us.dell.com/pipermail/linux-poweredge/2008-September/037352
.html
	 
	We're using RHEL AS 4u5 x86_64. Oh and it's unpatched (i.e. not
using el4_u5_patch). I should actually try to bring it upto patch and
see if that fixes it.
	 
	Didn't used to get that error, at least not as often. Lately we
do.
	All I could find was something related to DMA settings and/or
ACPI.
	 
	I've found various reports of this error, always in relation to
RHEL 4u5, 6 or 7.
	
http://osdir.com/ml/linux.redhat.release.rhel5/2008-06/msg00111.html
	
http://linux.derkeiler.com/Mailing-Lists/RedHat/2008-11/msg00108.html
	 
	Christian.
	 


________________________________

		From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of David Reta
		Sent: Tuesday, December 02, 2008 11:43 PM
		To: linux-poweredge at dell.com
		Subject: hda: irq timeout
		
		

		Hello,

		 

		We have a 2950 III running Redat AS 4.6 I386.

		 

		Under heavy load we get the following irq timeouts and
ATAPI reset in our syslog. 

		 

		[root at qa2950-1 ~]# dmesg | grep hda

		    ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings:
hda:DMA, hdb:pio

		hda: TEAC DVD-ROM DV28EV, ATAPI CD/DVD-ROM drive

		hda: ATAPI 24X DVD-ROM drive, 198kB Cache, UDMA(33)

		hda: DMA disabled

		hda: irq timeout: status=0xd0 { Busy }

		hda: irq timeout: error=0x00

		hda: ATAPI reset complete

		hda: irq timeout: status=0xd0 { Busy }

		hda: irq timeout: error=0x00

		hda: ATAPI reset complete

		hda: irq timeout: status=0x

		 

		We have tried disabling hal daemon and have updated all
firmware. I have a case open with Dell but they are not helping much.
Has anyone seen anything like this? 

		 

		Regards,

		David Reta

		 

		Systems Engineer

		Narus Inc.

		650-230-9338

		510-921-6651 (C)

		 

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