Subject: Re: [PATCH] pmac_zilog: Workaround problem due to interrupt on closed port

From: Rob Landley <[email-masked]>
Date: Mon, 11 Jan 2010 02:28:50 -0600

On Sunday 10 January 2010 21:51:42 Benjamin Herrenschmidt wrote:
> It seems that in qemu, we can see an interrupt in R3 despite the
> fact that it's masked in W1. The chip doesn't actually issue an
> interrupt, but we can "see" it when taking an interrupt for the
> other channel. This may be a qemu bug ... or not, so let's be
> safe and avoid calling into the UART layer when that happens which
> woulc cause a crash.
>
> Signed-off-by: Benjamin Herrenschmidt <[email-masked]>

Acked-by: Rob Landley <[email-masked]>

Tested it, and it worked for me.

Thanks,

Rob
-- 
Latency is more important than throughput. It's that simple. - Linus Torvalds