M600 irq probles with fedora

[matt whiteley]

We have a M1000e full of M600 blades that has been working perfectly  
with our RHEL5 installs. We are looking into using ovirt (http://ovirt.org 
) which needs to be installed on Fedora 10. This is where we are  
running into trouble.

Fedora 10 will install on the blades despite some odd behavior with  
random characters being printed all over the screen and some odd  
delays. Once the machine is updated to the current kernel is when the  
real problems kick in. Most of these appear to be related to irq  
conflicts. I have placed some relevant output from dmesg, lspci, /proc/ 
interrupts etc at http://web.pdx.edu/~whiteley/m600/ .

The behavior isn't even consistent making it all the more confusing.  
Without changing any software, multiple reboots of the machine will  
have the qla2xxx (fc hba) module and/or the bnx2 (ethernet) module  
stuck in the "loading" stage (opposed to "live" in /proc/modules). The  
ethernet interfaces will not exist in the case the bnx2 module didn't  
finish loading but you can't rmmod it either. On these boots I also  
have a pan0 bluetooth interface which isn't created with the older  
kernels. On boots where the ethernet interfaces do come up, messages  
are printed to the console of repeated up/down/up/down cycles.

We have installed all of the available updates for the blade (bios,  
ethernet fw, hba fw, etc and I cleared the settings with the  
motherboard jumper) and I have not attempted to contact dell support  
since Fedora 10 isn't a supported os.

I have tried booting the machine with a number of kernel options such  
as pci=routeirq or noapic, none of which have resulted in much better  
success.

I'm not sure if this is a problem with the hardware, one of the bios/ 
firmware updates or if I should just be filing a bug with Fedora for  
the kernel or something else. I'm perfectly happy to do that, I am  
just trying to determine if that is indeed the issue before I go  
around making a bunch of incorrect bugs.

Any help is greatly appreciated.


thanks,
-- 
matt whiteley <whiteley at pdx.edu>



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