Interrupt storm when inserting PCMCIA Memory Card Adapter

[Frank Altpeter]

Hi list,

I just bought a brand new PCMCIA based multi-card reader for use at
work. It's a "Delock Card Reader PCMCIA 16in1" for SM, MS, SD, xD and
T-Flash based memory cards [1].
I used to have a Sitecom multi-card reader before, which worked fine.
But the new card does not behave as wanted:

Sep 15 12:29:28 pegasus kernel: ata2: <              Memory Card
Adapter II> at port 0x4000-0x400f irq 11 function 0 config 1 on
pccard0
Sep 15 12:29:28 pegasus kernel: ad4: 240MB <Memory Card Adapter II
S2-V1.01> at ata2-master PIO1
Sep 15 12:29:28 pegasus kernel: Interrupt storm detected on "irq11:
cbb0 cbb1+++"; throttling interrupt source

Are there any hints how to solve this (besides kicking the card back
to the vendor)?

The system behind: IBM ThinkPad t40 with FreeBSD 6.0-BETA4 (Same
happens on identical hardware with FreeBSD 5.4).

# vmstat -i
interrupt                          total       rate
irq0: clk                        8760863        999
irq1: atkbd0                       19000          2
irq3: sio1                             2          0
irq4: sio0                             2          0
irq6: fdc0                             1          0
irq8: rtc                        1121235        127
irq9: acpi0                        25790          2
irq11: cbb0 cbb1+++               623981         71
irq13: npx0                            1          0
irq14: ata0                       184526         21
irq15: ata1                        56405          6
Total                           10791806       1231


[1] SM, SM RAM, SM ROM, MS, MS Pro, MS Duo, MS Pro Duo, MS MagicGate,
MS Selection, SD, Mini SD, MMC, RS-MMC, xD-Card, SM Adapter for xD, SD
Adapter for T-Flash

-- 
Le deagh dhùraghd,

        Frank Altpeter

Two of the most famous products of Berkeley are LSD and Unix.
I don't think that this is a coincidence.
        -- Anonymous