netdev - Re: [irda-users] [BUG] 2.6.20.1-rt8 irnet + pppd recursive spinlock...

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Date:	Wed, 11 Apr 2007 12:02:41 +0200 (CEST)
From:	Guennadi Liakhovetski <gl@...-ac.de>
To:	Samuel Ortiz <samuel@...tiz.org>
Cc:	Paul Mackerras <paulus@...ba.org>,
	irda-users@...ts.sourceforge.net, linux-rt-users@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [irda-users] [BUG] 2.6.20.1-rt8 irnet + pppd recursive spinlock...

On Tue, 10 Apr 2007, Samuel Ortiz wrote:

> The patch below schedules irnet_flow_indication() asynchronously. Could
> you please give it a try (it builds, but I couldn't test it...) ? :

I'm afraid, your patch makes it worse - with my patch to ppp_generic it 
worked 5 hours before Ir stopped, remaining at 4mbaud, and only discovery 
timer was expiring periodically without actually doing anything; with your 
patch the same happens in about 5 minutes.

I'll double-verify it, and then will try the same work-queue approach, but 
from ppp_generic, rather than from irttp, combining our 2 patches.

Thanks
Guennadi
---------------------------------
Guennadi Liakhovetski, Ph.D.
DSA Daten- und Systemtechnik GmbH
Pascalstr. 28
D-52076 Aachen
Germany
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