Date: Sun, 22 Jun 2003 19:20:13 -0500 From: Marius Strom <marius@marius.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-mobile@freebsd.org Subject: Re: TI-1420 PCMCIA Chipset Problems Message-ID: <20030623002013.GZ87417@marius.org> In-Reply-To: <20030622.140921.43008036.imp@bsdimp.com> References: <20030622172655.GR87417@marius.org> <20030622.140921.43008036.imp@bsdimp.com>
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Warner,
I've tried the o2micro patch, to no avail.. Haven't ever debugged
threads in the debugger, so if you can let me know what the steps to
debug the cbb thread to "find out where it's at" I'd appreciate it ;)
Also, using 'device card 2' instead of 'device pccard' with PCIC did not
help either.
On Sun, 22 Jun 2003, M. Warner Losh wrote:
> In message: <20030622172655.GR87417@marius.org>
> OK. That's odd. It should show up. Oh, you likely need to use
> 'device card' instead of 'device pccard'. That's likely a good
> short-cut.
>
> : I recompiled the kernel with DEBUG and broke to the debugger after the
> : crash. It looks like cbb1 was spinning. Also, upon the insertion of a
> : PC card, the CPU Fan comes on, so the processor is doing some serious
> : work with it in. Traces in the debugger only show keyboard input that
> : I've tried to do.
>
> Looks like we've hit an interrupt storm. That sucks. The reason the
> fan comes on is that an interrupt storm takes a lot of CPU, which
> heats things up. It used to be that I'd know that my laptop was
> panicing when the fan came on and I got no response for similar
> reasons.
>
> So, gotta find out why the storm is happening. Here's an odd thought,
> and I don't know how much of a programmer you are, but you might want
> to see if you can use the o2micro workaround code to see if *that* is
> the problem. You might also see where the (cbb[01]) threads are
> running from the debugger. That might give us a hint as to what is
> going on when the freeze comes.
>
> : Tried running devd with the -Dd flags to see if it would give any debug
> : info, but devd doesn't spit anything out at all.
>
> devd isn't involved yet, so this won't give you any useful
> information. Good idea, but not yet.
>
> Warner
>
--
/------------------------------------------------->
Marius Strom | Always carry a short length of fibre-optic cable.
Professional Geek | If you get lost, then you can drop it on the
System/Network Admin | ground, wait 10 minutes, and ask the backhoe
http://www.marius.org/ | operator how to get back to civilization.
\-------------| Alan Frame |---------------------->
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