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From: Joseph Salisbury <joseph.salisbury@canonical.com>
To: wey-yi.w.guy@intel.com, johannes.berg@intel.com,
	ilw@linux.intel.com, linville@tuxdriver.com,
	emmanuel.grumbach@intel.com
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [REGRESSION][v3.5] iwlwifi: include rssi as part of decision making for reduce txpower
Date: Fri, 03 Aug 2012 12:24:09 -0400	[thread overview]
Message-ID: <501BFB29.7010801@canonical.com> (raw)

Hello,

A bug[0] was reported against Ubuntu that reports a kernel panic when 
using the hotkey to disable then re-enable wifi on a Dell XPS 14z.  A 
kernel bisect was performed, which indicated the following commit as the 
source of the regression:


commit dd551ab7b47ace14753b0d73f79437cc35adcf6b
Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date:   Thu May 3 14:22:01 2012 -0700

     iwlwifi: include rssi as part of decision making for reduce txpower

     In bt coex, consider the average rssi as part of decision making 
process

     Change-Id: I8d11d7f177a6875e2a9d08f7539d42253226fd7a
     Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
     Reviewed-on: http://git-mwg.jer.intel.com/gerrit/1945
     Tested-by: Jenkins
     Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
     Signed-off-by: John W. Linville <linville@tuxdriver.com>

A test kernel was created with this commit reverted, which stopped the 
kernel panic from occurring.

A bugzilla bug[1] has been opened.

Thanks,

Joe


[0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1029547
[1] https://bugzilla.kernel.org/show_bug.cgi?id=45491

WARNING: multiple messages have this Message-ID (diff)
From: Joseph Salisbury <joseph.salisbury-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	johannes.berg-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	ilw-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
	linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org,
	emmanuel.grumbach-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [REGRESSION][v3.5] iwlwifi: include rssi as part of decision making for reduce txpower
Date: Fri, 03 Aug 2012 12:24:09 -0400	[thread overview]
Message-ID: <501BFB29.7010801@canonical.com> (raw)

Hello,

A bug[0] was reported against Ubuntu that reports a kernel panic when 
using the hotkey to disable then re-enable wifi on a Dell XPS 14z.  A 
kernel bisect was performed, which indicated the following commit as the 
source of the regression:


commit dd551ab7b47ace14753b0d73f79437cc35adcf6b
Author: Wey-Yi Guy <wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date:   Thu May 3 14:22:01 2012 -0700

     iwlwifi: include rssi as part of decision making for reduce txpower

     In bt coex, consider the average rssi as part of decision making 
process

     Change-Id: I8d11d7f177a6875e2a9d08f7539d42253226fd7a
     Signed-off-by: Wey-Yi Guy <wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
     Reviewed-on: http://git-mwg.jer.intel.com/gerrit/1945
     Tested-by: Jenkins
     Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
     Signed-off-by: John W. Linville <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>

A test kernel was created with this commit reverted, which stopped the 
kernel panic from occurring.

A bugzilla bug[1] has been opened.

Thanks,

Joe


[0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1029547
[1] https://bugzilla.kernel.org/show_bug.cgi?id=45491
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             reply	other threads:[~2012-08-03 16:24 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-03 16:24 Joseph Salisbury [this message]
2012-08-03 16:24 ` [REGRESSION][v3.5] iwlwifi: include rssi as part of decision making for reduce txpower Joseph Salisbury
2012-08-03 16:30 ` Johannes Berg
2012-08-03 16:43   ` Joseph Salisbury

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