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Sad ToPIC97 RequestIRQ failure (2.3.99-pre3, 3.1.13) 

Forum: 3Com PCMCIA Ethernet Adapter Issues
Date: 2000, Apr 02
From: Rob Braun bbraun

On a Toshiba Libretto 100ct, using kernel 2.3.99-pre3, pcmcia card services 3.1.13, and a 3c589D ethernet card, I get an error message of "3c589_cs: RequestIRQ: Resource in use"

This is with the kernel tree card services enabled, and the 3.1.13 cardmgr running. I was unable to build 3.1.13 card services under RedHat 6.1 without kernel tree card services enabled. It errored out when trying to compile 3c575_cb.c.

The Libretto 100 uses a ToPIC97 PCI->CardBus bridge, and it is not assigned an IRQ. lspci -v shows the IRQ to be 255.

Reading this page, I have noticed some people with similar problems on other PCI->CardBus bridges, and the response has generally been IRQ routing issues, and to try manipulating irq_mode, pci_int, and others. I have tried playing with these, to no end.

Here is an exerpt from the logs (typing on another machine, as the network card isn't working yet on the libretto):

dmesg:

>Linux PCMCIA Card Services 3.1.11
>options: [pci] [cardbus] [pm]
>Adding cardbus controller 0: Toshiba America Info Systems  ToPIC97
>PCI: No IRQ known for interrupt pin A of device 00:13.0.
>Yenta IRQ list 0000, PCI irq0
>Socket status: ffffffff
>Adding cardbus controller 1: Toshiba America Info Systems  ToPIC97
>PCI: No IRQ known for interrupt pin B of device 00:13.1.
>Yenta IRQ list 0000, PCI irq0
>Socket status: ffffffff

cardmgr startup:

>starting, version is 3.1.11
>watching 2 sockets
> initializing socket 1
>socket 1: 3Com 589 Ethernet
>executing: 'insmod /lib/modules/2.3.99-pre3/pcmcia/3c589_cs.o
>kernel: 3c589_cs: RequestIRQ: Resource in use
>get dev info on socket 1 failed: Resource temporarily unavailable

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Messages Inline: 1 All Outline: 1 2 All

1. None The build problem is fixed in the current beta by David Hinds, 2000, Apr 03
(_ None Compiles (w/o ray_cs.c) & works by Rob Braun, 2000, Apr 04
(_ None Re: Compiles (w/o ray_cs.c) & works by David Hinds, 2000, Apr 04
(_ None 04Apr00 works + dump_pirq output by Rob Braun, 2000, Apr 05
(_ None Re: 04Apr00 works + dump_pirq output by David Hinds, 2000, Apr 05

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