cvs commit: src/sys/dev/twe twe.c twe_freebsd.c

Robert Watson rwatson at
Tue Feb 8 10:39:13 GMT 2005

On Tue, 8 Feb 2005, Scott Long wrote:

>   Fix crashdumps on twe.  The twe_immediate_request() path was not only
>   copying data to a temporary buffer before the I/O, but also copying that
>   temporary buffer back to the original data location after the I/O.  When
>   you're dumping kernel heap and stack and protected pages, this is very
>   very bad.
>   A belated thanks to Robert Watson for donating hardware for this (and future)
>   work.
>   MFC after: 3 days

Wonderful, thanks!  I and the rest of the 3ware-consuming world will
appreciate this much :-).

Robert N M Watson

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