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To: "Daniel S. Haischt" <me@daniel.stefan.haischt.name>
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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: 17 Dec 2004 17:41:05 -0500
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Subject: Re: Interrupt storm on FreeBSD 5.3
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"Daniel S. Haischt" <me@daniel.stefan.haischt.name> writes:

> I am getting the following error message during
> the boot process after having compiled a custom
> kernel for FreeBSD 5.3-RELEASE-p1.
> 
> ----8<--------8<--------8<-------8<-----8<-----
> Interrupt storm detected on "irq11: ohci+";
> throtteling interrupt source
> ---->8-------->8-------->8------->8----->8-----

Are you using OHCI?  Disable it if you're not.

> In the past I did use the same kernel configuration
> file on FreeBSD 5.2.1 which did work perfectly.

A great many things changed between 5.2.1 and 5.3.

> Tho - If using the GENERIC kernel that comes
> with FreeBSD 5.3 I do not run into any problems.
> 
> Can you give any hints how to solve the problem?
> Attached you will find the output of dmesg. Tell
> me if you need any additional information.

Take the GENERIC kernel and your old kernel config, and use binary
search to narrow down which of the differences between them causes
your problem.

> Mounting root from ufs:/dev/ad4s2a
> warning: KLD '/boot/kernel.save/ipfw.ko' is newer than the linker.hints file
> ipfw2 initialized, divert disabled, rule-based forwarding disabled, default to deny, logging disabled
> Accounting enabled
> warning: KLD '/boot/kernel.save/linux.ko' is newer than the linker.hints file

Looks like you haven't really updated everything...