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Hello,

On Nov 12, 2007, at 10:20, Martin Husemann wrote:

> On Sat, Nov 10, 2007 at 06:07:53PM +0000, Andrew Doran wrote:
>>
>> Module Name:	src
>> Committed By:	ad
>> Date:		Sat Nov 10 18:07:53 UTC 2007
>>
>> Modified Files:
>> 	src/sys/dev/ic: z8530tty.c
>>
>> Log Message:
>> zsstart, zstty_txsoft: don't acquire tty_lock, it's already held.
>
> Sorry, this still does not work at all. A sun (serial) keyboard  
> attached
> to zs locks against itself in zsopen (->zsparam ->zstty_softint), and
> if I work around that, it locks against itself on first keypress:

And SMP macppc still deadlocks when something opens a serial port.

have fun
Michael
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