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

Kris Kennaway kris at
Tue Feb 8 03:51:35 GMT 2005

On Tue, Feb 08, 2005 at 03:43:02AM +0000, Scott Long wrote:
> scottl      2005-02-08 03:43:02 UTC
>   FreeBSD src repository
>   Modified files:
>     sys/dev/twe          twe.c twe_freebsd.c 
>   Log:
>   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.


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