what's going on here isn't immediately obvious to me.
maybe it should be. any ideas would be appreciated.
i have a machine that is very happy with a mv50xx
controller, usb and ether0 all sitting on irq 11.
chula# cat /dev/irqalloc
3 0 debugpt
7 0 mathemu
8 0 doublefault
9 0 mathover
14 0 fault386
15 0 unexpected
16 0 matherror
50 18 clock
51 19 lapicerror
63 31 lapicspurious
65 1 kbd
73 11 sdF (mv50xx)
73 11 usbuhci
73 11 ether0
81 10 sdC (ata)
81 10 ether1
89 4 COM1
97 7 usbehci
97 7 usbuhci
105 14 sdE (ahci)
105 14 usbuhci
113 15 usbehci
113 15 usbuhci
if i add another controller (orion) to the mix
irq 11 has this sitting on it:
73 11 sdF (mv50xx)
73 11 sda (orion)
73 11 usbuhci
73 11 ether0
and things are no longer good; with the machine doing
nothing i have:
chula# cat /dev/sysstat
0 3097 33083 896 901 0
0 197 78 0
1 3553 28350 1274 1241 0
0 0 76 0
2 940 1294487 1049 409 0
0 0 8 86
3 3639 28389 1394 1149 0
0 0 80 0
disabling the mv50xx pci controller restores order;
disabling the sdata pci, ahci pci-e, or usb controllers
does not. the orion is a pci-e controller.
so any combination is okay as long as the mv50xx and
orion aren't running at the same time. and oddly
the machine runs reasonably even with the screaming
irq.
chula# pci | grep disk
0.31.2: disk 01.06.01 8086/3a22 14 0:0000a401 16 1:0000a081 16 2:0000a001 16
3:00009c01 16 4:00009881 32 5:fa4da000 2048
3.0.0: disk 01.00.00 11ab/6485 11 2:0000bc01 128 4:fa5f0004 65536 5:00000000
16
8.0.0: disk 01.00.00 11ab/6081 11 0:fbe00004 1048576 1:00000000 16 2:0000e801
256 3:fb800004 4194304 4:00000000 16
8.1.0: disk 01.80.85 105a/4d69 10 0:0000ec01 16 1:0000e481 16 2:0000e401 16
3:0000e081 16 4:0000e001 16 5:fbdfc000 16384
chula# pci | grep ' 11 '
0.22.0: --- 08.80.00 8086/3430 11 0:fa4fc004 16384 1:00000000 16
0.22.4: --- 08.80.00 8086/3429 11 0:fa4ec004 16384 1:00000000 16
0.26.0: usb 0c.03.00 8086/3a37 11 4:0000ac01 32
3.0.0: disk 01.00.00 11ab/6485 11 2:0000bc01 128 4:fa5f0004 65536 5:00000000
16
6.0.0: net 02.00.00 8086/10d3 11 0:fa6e0000 131072 2:0000cc01 32 3:fa6dc000
16384
8.0.0: disk 01.00.00 11ab/6081 11 0:fbe00004 1048576 1:00000000 16 2:0000e801
256 3:fb800004 4194304 4:00000000 16
- erik
