dma problems on PE350

John_L_Jones@Dell.com John_L_Jones at Dell.com
Mon Jun 10 10:41:01 CDT 2002


Sounds like you're having problems with the DMA. Try the following:

Verify DMA is on by typing 
hdparm -d /dev/[drive] at a command prompt. 

To turn it off temporarily (it will be re-enabled upon reboot), type 
hdparm -d0 /dev/[drive] at a command prompt. 

To pass the ide=nodma option to the kernel at boot. To do this, open
/boot/grub/grub.conf in a text editor, and add "ide=nodma" to the end of
each line that begins with "kernel".

These instructions are for a Red Hat system, so some variance may be needed
for Debian. I am also assuming that this is a software RAID1 , correct?

John L. Jones, RHCE, MCSE
Dell Technical Support Training



-----Original Message-----
From: Frank Louwers [mailto:frank at openminds.be]
Sent: Monday, June 10, 2002 10:21 AM
To: linux-poweredge at exchange.dell.com
Subject: dma problems on PE350


Hi,

today I've found this entry 3 times in a few hours time in my syslog.
Are my disks dying? Is the ide-controller dying?

I am running Debian 2.2, a 2.4.18 kernel on a PE350. There are 2
Maxtor disks in it (Maxtor 5T060H6), in a RAID1 setup...

Jun 10 17:05:30 bordeaux kernel: hda: timeout waiting for DMA
Jun 10 17:05:30 bordeaux kernel: ide_dmaproc: chipset supported
ide_dma_timeout func only: 14
Jun 10 17:05:30 bordeaux kernel: hdb: status timeout: status=0xd0 { Busy }
Jun 10 17:05:30 bordeaux kernel: hdb: drive not ready for command
Jun 10 17:05:30 bordeaux kernel: ide0: reset: success



Vriendelijke groeten,
Frank Louwers

-- 
Openminds bvba                www.openminds.be
Tweebruggenstraat 16  -  9000 Gent  -  Belgium

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