Re: wm problem, the dmesg output

[Jukka Marin <jmarin%embedtronics.fi@localhost>]

On Wed, Aug 06, 2008 at 05:29:41PM +0200, Manuel Bouyer wrote:
> > How can I check if interrupt routing works?  (This is a production system
> > which should stay up all the time, but I want to get the additional Ethernet
> > ports working, too..)
> 
> I'd look at the outout of vmstat -i, assuming wm2 doens't use a shared
> interrupt.

Well..

wm2 at pci6 dev 0 function 0: Intel PRO/1000 PT (82571EB), rev. 6
wm2: interrupting at ioapic0 pin 16, event channel 3
...
wm3 at pci6 dev 0 function 1: Intel PRO/1000 PT (82571EB), rev. 6
ioapic0: int17 1a9c0<vector=c0,delmode=1,logical,actlo,level,masked,dest=0> 
f000000<target=f>
wm3: interrupting at ioapic0 pin 17, event channel 6

and

interrupt                                     total     rate
...
vcpu0 ioapic0 pin 16                       68529180       37
vcpu0 ioapic0 pin 18                       54273505       29
vcpu0 ioapic0 pin 19                      154071320       84
vcpu0 ioapic0 pin 17                            218        0

and (from dmesg.boot):

ioapic0: pin 16 attached to pci0 device 0 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci0 device 2 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci0 device 8 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci0 device 28 INT_B (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci0 device 29 INT_D (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci1 device 0 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci2 device 0 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci3 device 0 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci6 device 0 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci7 device 2 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci7 device 3 INT_A (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)
ioapic0: pin 16 attached to pci7 device 4 INT_D (type 0<type=0> flags 
f<pol=3=Act Lo,trig=3=Level>)

So, (with no knowledge about today's pc hardware at all ;) there are
multiple devices using this "pin 16" interrupt which appears to work?

  -jm