Re: CURRENT freezes on Laitude D520 (fwd)

Retransmit due to bad CC.

Robert N M Watson
Computer Laboratory
University of Cambridge

---------- Forwarded message ----------
Date: Mon, 11 Dec 2006 09:27:56 +0000 (GMT)
From: Robert Watson <rwatson_at_FreeBSD.org>
To: yal <yal_at_yal.hopto.org>
Cc: freebsd-current-request_at_FreeBSD.org
Subject: Re: CURRENT freezes on Laitude D520


On Sun, 10 Dec 2006, yal wrote:

> On Sun, December 10, 2006 13:57, Robert Watson wrote:
> 
>>>> - Try setting net.isr.direct=0 and see if the problem goes away.
>>> 
>>> This indeed help.  LOR has gone and wireless works.
> 
>> result in a deadlock under other circumstances, net.isr.direct makes the 
>> chances of that deadlock much greater.
> 
> It helped on Latutide D520 as well. No freeze or anything anymore. Top shows 
> now 100% idle most of the time. The debug.mpsafent="0" has been deleted, as 
> suggested. Thanks to Robert N. M. Watson.

Sam has committed changes to if_wi in the last 24 hours that may fix this 
problem with the default net.isr.direct setting.  Could you try updating to 
these changes, removing net.isr.direct=0, and seeing what happens?

Thanks,

Robert N M Watson
Computer Laboratory
University of Cambridge