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From: Frederic Weisbecker <fweisbec@gmail.com>
To: Sitsofe Wheeler <sitsofe@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Poking ieee80211_default_rc_algo causes kernel lockups
Date: Sun, 15 Feb 2009 18:02:15 +0100	[thread overview]
Message-ID: <20090215170214.GK5835@nowhere> (raw)
In-Reply-To: <slrngpgfil.5gc.sitsofe@sitsofe.eeepc.localdomain>

On Sun, Feb 15, 2009 at 04:09:57PM +0000, Sitsofe Wheeler wrote:
> Hi,
> 
> As mentioned on
> http://groups.google.com/group/fa.linux.kernel/browse_frm/thread/d4a6ce26360613fa/b362792a2debced6?#b362792a2debced6
> , poking /sys/module/mac80211/parameters/ieee80211_default_rc_algo and
> then trying to read values back is currently causing the kernel to go
> funny. E.g.
> echo blah > /sys/module/mac80211/parameters/ieee80211_default_rc_algo
> cat /sys/module/mac80211/parameters/ieee80211_default_rc_algo
> 
> Causes 2.6.29rc5 on my EeePC 900 to lock up.
> 
> -- 
> Sitsofe


Hi,

I'm currently building a 2.6.29-rc5 with CONFIG_MAC80211 enabled
to test it.

Could you please enable the CONFIG_DETECT_SOFTLOCKUP option in your kernel?
It's on Kernel Hacking > Detect Soft Lockups.
With some chances you will have a relevant stacktrace of the lockup, in case
I couldn't reproduce it.

 
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  reply	other threads:[~2009-02-15 17:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-15 16:09 Poking ieee80211_default_rc_algo causes kernel lockups Sitsofe Wheeler
2009-02-15 17:02 ` Frederic Weisbecker [this message]
2009-02-15 19:24   ` Sitsofe Wheeler
2009-02-15 19:41     ` Frederic Weisbecker
2009-02-15 21:02       ` Sitsofe Wheeler
2009-02-16  1:40         ` Frederic Weisbecker
2009-02-16  2:37           ` Frederic Weisbecker
2009-02-15 19:35 ` Frederic Weisbecker
2009-02-16 10:10   ` Rusty Russell
2009-02-16 17:59     ` Frederic Weisbecker
2009-02-16 23:37       ` Rusty Russell
2009-02-20 10:27         ` What made this bug report better? (was Re: Poking ieee80211_default_rc_algo causes kernel lockups) Sitsofe Wheeler
2009-02-20 11:31           ` Ingo Molnar
2009-02-24  3:13           ` Rusty Russell
2009-02-24  8:16             ` What made this bug report better? Sitsofe Wheeler
2009-02-24 17:58               ` Frederic Weisbecker

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