massive interrupt storm

[Murray Taylor]

On Tue, Jul 08, 2008 at 05:21:34PM +1000, Murray Taylor wrote:
> We have variously shutdown all USB in the bios, pulled the Raid 
> daughter board, and still cant solve this storm.

Have you tried disabling MSI and MSI-X in FreeBSD to see if it makes a
difference?  Set hw.pci.enable_msi="0" and hw.pci.enable_msix="0"
in /boot/loader.conf and reboot.

-- 
| Jeremy Chadwick                                jdc at parodius.com |

----------------------------

Nope, :(
Interrupt usage is still around the 89-95% :( 

NB sysctl -a | grep msi   returns nothing, and attempting to set the
values
directly returns 'unknown OID'

this is on 6.2 GENERIC

--------


Still looking for any other hints as to what may be causing this storm.
We have tried the msi hints above, with no joy. shutting down USB stuff
in the 
BIOS (no joy), disabling ACPI on boot (this generates a kernel fault and
reboots)
and different keyboards ( USB only, this thing has no PS/2 ports )

This only thing that made a difference, and that was not totally
repeatable
was unplugging and re-plugging a keyboard after boot.... then the storm
stopped,
but we were still without bge1 (a single NIC firewall is kinda useless!)


Murray Taylor
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