Fatal trap 30: reserved (unknown) fault
Christoph Mallon
christoph.mallon at gmx.de
Sat Feb 21 07:44:22 PST 2009
Alexander Motin schrieb:
> Hi.
>
> About month ago after one of my amd64 8-CURRENT upgrade I have started
> to see crashes with very strange message:
> Fatal trap 30: reserved (unknown) fault while in kernel mode
>
> Crash usually happens during some driver loading or unloading, for
> example, snd_hda, which always worked fine before, or during ata channel
> detach/attach which also causes device destruction/creation. Backtrace
> of this state shows nothing interesting, for example idling in
> acpi_cpu_c1() or just DELAY().
>
> Does anybody knows, for whom is this fault "reserved" and what does it
> mean?
Intel:
20-31 -- Intel reserved. Do not use.
This exception really should not happen. Maybe int 0x30 is executed, but
this should not be the case either.
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