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From: Lowell Gilbert <freebsd-stable-local@be-well.ilk.org>
To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
References: <20100318192758.GP52442@uriah.heep.sax.de>
Date: Thu, 18 Mar 2010 16:21:26 -0400
In-Reply-To: <20100318192758.GP52442@uriah.heep.sax.de> (Joerg Wunsch's
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Cc: freebsd-stable@freebsd.org
Subject: Re: Strange problem: if_xe only works in GENERIC kernel
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Joerg Wunsch <j@uriah.heep.sax.de> writes:

> I'm running into a strange problem with 8-current (or 8.0-RELEASE) on
> an elderly Thinkpad 600E.
>
> As long as I'm using the GENERIC kernel, an Intel Etherexpress PC card
> works as expected:
>
> interrupt storm detected on "irq11:"; throttling interrupt source
> xe0: <Intel EtherExpress(TM) PRO/100 PC Card Mobile Adapter16> at port 0x100-0x10f iomem 0x20000000-0x20000fff irq 11 function 0 config 1 on pccard1
> xe0: version 0x45/0x04, 100Mbps capable
> xe0: Ethernet address: 00:a0:c9:bc:b5:ef
> xe0: [ITHREAD]
>
> However, as soon as I start removing unneeded stuff from the kernel
> config file, the driver completely jams.  It just sits there, the
> machine blocks, until I eventually pop out the card, when I get the
> following messages:
>
> cbb1: ready never happened, status = 00
> xe0: <Intel EtherExpress(TM) PRO/100 PC Card Mobile Adapter16> at port 0x100-0x10f iomem 0x20000000-0x20000fff irq 11 function 0 config 1 on pccard1
> xe0: version 0xff/0x07, 100Mbps capable
> xe0: Ethernet address: 00:a0:c9:bc:b5:ef
> xe0: [ITHREAD]
> xe0: detached
> cbb1: Bad Vcc requested

> As the CPU is a little slow, recompiling kernels takes an eternity on
> it (even with NO_KERNELCLEAN), so I could not isolate it to a single
> line in the config file so far.

Try "device cbb".  Also make sure you have pccard.  I don't think you'll
need cardbus with that setup, but I'm not certain.

I'm not sure about this, because I wouldn't really expect the xe driver
to attach at all without pccard working, but you definitely need those
in your case.

Or maybe I'm way off base, since the comments in the GENERIC file would
probably warn you not to delete those.