cvs commit: src/sys/dev/puc puc_sbus.c

[Scott Long]

Marcel Moolenaar wrote:
> marcel      2004-11-20 20:12:20 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:        (Branch: RELENG_5)
>     sys/dev/puc          puc_sbus.c 
>   Log:
>   MFC rev 1.5:
>   Apply a bandaid to avoid hangs on Ultra 2 machines. The second Z8530
>   connects to the keyboard and mouse and needs some special treatment.
>   Until this is fully understood, implemented and tested, simply avoid
>   probing the second Z8530. This is also what the zs(4) driver does.
>   
>   Revision  Changes    Path
>   1.4.2.1   +1 -1      src/sys/dev/puc/puc_sbus.c

One thing to note is that I'm now getting an interrupt storm on the
puc0 interrupt line with my Ultra2.  It's holding steady at about 25,000
interrupts/sec.  This did not happen with the zs driver.

Scott