From: "Huang\, Ying" <ying.huang@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Vladimir Davydov <vdavydov@virtuozzo.com>,
Johannes Weiner <hannes@cmpxchg.org>,
LKML <linux-kernel@vger.kernel.org>,
Michal Hocko <mhocko@suse.cz>,
David Rientjes <rientjes@google.com>, <lkp@01.org>
Subject: Re: [LKP] [lkp] [mm] 63c6a211b0: BUG: sleeping function called from invalid context at mm/memory.c:1207
Date: Fri, 05 Feb 2016 09:51:06 +0800 [thread overview]
Message-ID: <8760y3aprp.fsf@yhuang-dev.intel.com> (raw)
In-Reply-To: <20160204132958.f8571de90d56749336c9af05@linux-foundation.org> (Andrew Morton's message of "Thu, 4 Feb 2016 13:29:58 -0800")
Andrew Morton <akpm@linux-foundation.org> writes:
> On Thu, 04 Feb 2016 08:46:03 +0800 kernel test robot <ying.huang@linux.intel.com> wrote:
>
>> FYI, we noticed the below changes on
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
>> commit 63c6a211b0eb5b1c86ffdd9d89639fb7f1b70fca ("mm: workingset: per-cgroup cache thrash detection")
>>
>>
>> [ 8.134495] No soundcards found.
>> [ 8.137598] debug: unmapping init [mem 0xffffffff81cdc000-0xffffffff81d99fff]
>> [ 8.137598] debug: unmapping init [mem 0xffffffff81cdc000-0xffffffff81d99fff]
>> [ 8.155388] BUG: sleeping function called from invalid context at mm/memory.c:1207
>> [ 8.155388] BUG: sleeping function called from invalid context at mm/memory.c:1207
>> [ 8.158212] in_atomic(): 0, irqs_disabled(): 0, pid: 79, name: mount
>> [ 8.158212] in_atomic(): 0, irqs_disabled(): 0, pid: 79, name: mount
>> [ 8.160436] 1 lock held by mount/79:
>> [ 8.160436] 1 lock held by mount/79:
>> [ 8.161488] #0:
>> [ 8.161488] #0: ( (rcu_read_lockrcu_read_lock){......}){......}, at:
>> , at: [<ffffffff810e4cc9>] rcu_lock_acquire+0x0/0x20
>> [<ffffffff810e4cc9>] rcu_lock_acquire+0x0/0x20
>> [ 8.164136] Preemption disabled at:
>> [ 8.164136] Preemption disabled at:[<ffffffff8106a358>] vprintk_default+0x18/0x1a
>> [<ffffffff8106a358>] vprintk_default+0x18/0x1a
>
> I'm not sure why this is pointing at vprintk_default...
>
> mm-workingset-per-cgroup-cache-thrash-detection.patch does have a bug
> which could cause this. It's fixed by
> mm-workingset-per-cgroup-cache-thrash-detection-fix.patch. Was the
> -fix patch applied during this testing?
The original test is for linux-next tree of 2016-02-03, which hasn't the
fix patch. The fix patch is merged by linux-next 2016-02-04. I queued
the same test for the fix patch and there is no such bug as above.
Best Regards,
Huang, Ying
prev parent reply other threads:[~2016-02-05 1:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 0:46 [lkp] [mm] 63c6a211b0: BUG: sleeping function called from invalid context at mm/memory.c:1207 kernel test robot
2016-02-04 21:29 ` Andrew Morton
2016-02-05 1:51 ` Huang, Ying [this message]
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