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Subject: Re: Odd BUG on wireless-testing master-2010-08-05
From: Johannes Berg <johannes@sipsolutions.net>
To: Kalle Valo <kvalo@adurom.com>
Cc: Christian Lamparter <chunkeey@googlemail.com>,
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Date: Sun, 08 Aug 2010 10:33:24 +0200
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On Sun, 2010-08-08 at 08:20 +0300, Kalle Valo wrote:
> Christian Lamparter <chunkeey@googlemail.com> writes:
> 
> > I got this from slub_debug:
> >
> > [ 2857.899976] phy2: device now idle
> > [ 2857.904032] =============================================================================
> > [ 2857.909760] cfg80211: Calling CRDA to update world regulatory domain
> > [ 2857.917337] BUG kmalloc-4096: Object already free
> > [ 2857.917337] -----------------------------------------------------------------------------
> > [ 2857.917337] 
> > [ 2857.917337] INFO: Allocated in wireless_send_event+0x22a/0x34a age=4 cpu=1 pid=7527
> 
> 
> I have similar warnings with ath9k, using commit
> 0ca923bdb96b1fee4d1db90b3094a0cf36120056:
> 
> Aug  6 21:02:08 tukki kernel: [   71.172707] =============================================================================
> Aug  6 21:02:08 tukki kernel: [   71.172715] BUG kmalloc-4096: Object already free
> Aug  6 21:02:08 tukki kernel: [   71.172718] -----------------------------------------------------------------------------
> Aug  6 21:02:08 tukki kernel: [   71.172720] 
> Aug  6 21:02:08 tukki kernel: [   71.172732] INFO: Allocated in wireless_send_event+0x1f2/0x410 age=0 cpu=1 pid=3056

I wonder if this is in any way related to
commit 1235f504aaba2ebeabc863fdb3ceac764a317d47
Author: Eric Dumazet <eric.dumazet@gmail.com>
Date:   Mon Jul 26 13:09:16 2010 -0700

    netlink: netlink_recvmsg() fix


johannes