linux-kernel - Re: 2.6.32-rc5-git1 -- BUG kmalloc-8192: Poison overwritten (ath9k implicated)

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Date:	Thu, 19 Nov 2009 15:19:00 -0800
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	Miles Lane <miles.lane@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	Felix Fietkau <nbd@...nwrt.org>
Subject: Re: 2.6.32-rc5-git1 -- BUG kmalloc-8192: Poison overwritten (ath9k 
	implicated)

On Mon, Nov 16, 2009 at 5:08 PM, Luis R. Rodriguez <mcgrof@...il.com> wrote:
> On Mon, Nov 16, 2009 at 4:41 PM, Miles Lane <miles.lane@...il.com> wrote:
>> On Mon, Nov 16, 2009 at 6:15 PM, Luis R. Rodriguez <mcgrof@...il.com> wrote:
>>> On Tue, Oct 20, 2009 at 1:45 PM, Miles Lane <miles.lane@...il.com> wrote:
>>>> Let me know if you want my .config file.  I think this was triggered by
>>>> suspending my laptop.
>>>>
>>>> BUG kmalloc-8192: Poison overwritten
>>>
>>> Thanks for your report Miles.
>>>
>>> Are you using Linus' tree? Felix wrote some patches that got rid of
>>> the rate control private area which we kmalloc/kfree and at least one
>>> user reported that these patches fixed a memory leak. I'm curious if
>>> the same patches would resolve this issue.
>>>
>>> Only thing is these patches apply against wireless-testing and not
>>> 2.6.32. To test them you'd have to pull wireless-testing master to
>>> your tree and then apply the patches both before and after.
>>>
>>> Would you be up to try that?
>>
>> Yes, definitely.  Thanks.  I will try to accomplish this and let you
>> know if I get stuck.
>
> OK, not sure if a merge of wireless-testing will be clean so you may
> want to just clone fresh.. Anyway after you get wireless-testing bits
> you'll want to apply these:
>
> http://patchwork.kernel.org/patch/60127/
> http://patchwork.kernel.org/patch/60128/
> http://patchwork.kernel.org/patch/60126/
>
> If you want to merge wireless-testing you can try:
>
> git merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
> master
>
> If that'd doesn't gos smooth just clone it and I think you should be
> able to safely --reference your current tree for objects for Linus'
> tree.

Miles I see no reply from you yet so I backported the patches in
question for you. Can you please try 2.6.32-rc7 and apply these
patches on top:

http://bombadil.infradead.org/~mcgrof/patches/ath9k/2009/11-19/70-mac80211-total-ampdu-tx-info.patch
http://bombadil.infradead.org/~mcgrof/patches/ath9k/2009/11-19/71-ath9k-remove-tx_info_priv.patch

  Luis
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