Recent -CURRENT panic (New interrupt code related?); backtrace included

John Baldwin jhb at
Wed Nov 12 08:29:37 PST 2003

On 12-Nov-2003 Xin LI/李鑫 wrote:
> Hello,
> On recently compiled kernels, I often get panics which seemed to be interrupt related. Among
> other things, almost all of them claims that "Kernel trap 30", which seemd to be strange. 
> The kernel I am currently running, namely,
> FreeBSD 5.1-CURRENT FreeBSD 5.1-CURRENT #5: Sat Oct 25 22:27:05 CST 2003   
> delphij at  i386
> seemed to be ok, however, when I am trying the new kernels (you see, 14 compile and run
> attempts:), it exhibits incredible instablity.
> FreeBSD 5.1-CURRENT #19: Wed Nov 12 12:17:28 CST 2003
>     delphij at
> Here is one of the crashdumps I caught. The machine was configured with a UP kernel, with
> DEVICE_POLLING enabled. There are two networking adapters attached to it, a fxp and a dc, and the
> machine itself act as a NAT gateway. The network load is not very heavy. If you think the
> backtrace helpful, or need any more information, please write me and I will try everything I can
> to help.

Do you have 'device apic' enabled?  If so, can you try using 'options NO_MIXED_MODE'.
Barring that, can you try and
if that doesn't work


John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve!"  -

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