Udev on PPC

Udev on PPC

[Peter Snyder]

Hello everyone,
I am having a great deal of difficulty getting udev to work on my G3
iBook (600 Mhz, dual usb).  I have the following chain of ieee1394
devices: 

western digital hard drive -> ide to firewire converter with a ide cd
recorder -> 3rd gen iPod.

When I plug in my firewire cable to the ibook, it does detect all of the
devices (according to systool -b ieee1394), and by watching /sys/block,
I can see that it sees sda (the hardrive), and then sda and sr0 (the
recorder), and then _only_ sdb (ie /sys/block no longer lists sda or
sr0).  

Alternativly, if I change the order of the devices by flipping the drive
and the recorder, I get sda, and then sda and sr0, and then only sr0.  

Under both of these scenarios, it seems that udev eventually forgets
about both, and eventually /sys/block contains:

hda  ram0  ram10  ram12  ram14  ram2  ram4  ram6  ram8
hdb  ram1  ram11  ram13  ram15  ram3  ram5  ram7  ram9

I havn't the slightest clue about how to go about fixing this problem. 
I am running udev .016 and hotplug from 2004-01-05.  This is kernel
2.6.1 with the behn patches.  Distro is gentoo.  Please let me know if
there is any additional information I can provide that would be helpful
in diagnosing/solving this problem.  Thanks in advance and the neat
software.

	Pete Snyder



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Re: Udev on PPC

[Greg KH]

On Wed, Feb 11, 2004 at 01:55:09PM -0600, Peter Snyder wrote:
> Hello everyone,
> I am having a great deal of difficulty getting udev to work on my G3
> iBook (600 Mhz, dual usb).  I have the following chain of ieee1394
> devices: 
> 
> western digital hard drive -> ide to firewire converter with a ide cd
> recorder -> 3rd gen iPod.
> 
> When I plug in my firewire cable to the ibook, it does detect all of the
> devices (according to systool -b ieee1394), and by watching /sys/block,
> I can see that it sees sda (the hardrive), and then sda and sr0 (the
> recorder), and then _only_ sdb (ie /sys/block no longer lists sda or
> sr0).  
> 
> Alternativly, if I change the order of the devices by flipping the drive
> and the recorder, I get sda, and then sda and sr0, and then only sr0.  
> 
> Under both of these scenarios, it seems that udev eventually forgets
> about both, and eventually /sys/block contains:
> 
> hda  ram0  ram10  ram12  ram14  ram2  ram4  ram6  ram8
> hdb  ram1  ram11  ram13  ram15  ram3  ram5  ram7  ram9

udev doesn't control /sys/block at all.  It sounds like you have other
kernel issues.  Look at the recent 1394 fix that just went into the 2.6
kernel tree, it will probably fix your bug.

thanks,

greg k-h


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