Interrupt storm when inserting PCMCIA card

[Jeremie Le Hen]

Hi,

whenever I try to insert a PCMCIA card in the slot, I get the
following message:

% Interrupt storm detected on "irq9:"; throttling interrupt source


Then I can remove and insert back the card at will, I won't get any
message from the kernel any more.

My kernel configuration file contains:

% device cbb
% device pccard
% device cardbus

(BTW, can someone explain me what are the purpose of those devices ?
I can't really understand it from the manpage.)


Output from pciconf(8):

% cbb0 at pci6:1:0:  class=0x060700 card=0x00661025 chip=0x8031104c rev=0x00 hdr=0x02
% vendor   = 'Texas Instruments (TI)'
% class    = bridge
% subclass = PCI-CardBus


And the corresponding piece of dmesg:

% cbb0: <TI6411 PCI-CardBus Bridge> mem 0xc8216000-0xc8216fff irq 10 at device 1.0 on pci6
% cardbus0: <CardBus bus> on cbb0
% pccard0: <16-bit PCCard bus> on cbb0


vmstat -i:

% interrupt                          total       rate
% irq0: clk                        1094497        998
% irq1: atkbd0                        4725          4
% irq8: rtc                         140217        127
% irq9: bge0 uhci2+                  59147         53
% irq11: iwi0 uhci0*                  6444          5
% irq12: psm0                         1719          1
% irq14: ata0                         3576          3
% Total                            1310325       1195


I tried to turn on debug sysctls, but it shows nothing more:

% hw.cardbus.debug: 1
% hw.cardbus.cis_debug: 1
% hw.pccard.debug: 1
% hw.pccard.cis_debug: 1
% hw.cbb.debug: 1


Any help will be welcome.  Let me know if you need for informations,
such a full verbose dmesg or so.
Thank you.
Best regards,
-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >