From: Wanlong Gao <gaowanlong@cn.fujitsu.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, Linux-MM <linux-mm@kvack.org>
Subject: Re: [possible deadlock][3.1.0-g138c4ae] possible circular locking dependency detected
Date: Fri, 28 Oct 2011 14:11:37 +0800 [thread overview]
Message-ID: <4EAA4799.1020505@cn.fujitsu.com> (raw)
In-Reply-To: <CAA_GA1cKK45Z=YFUHRi-LUuhWpcs9ruW9xom_6LRmqhRNao+hQ@mail.gmail.com>
On 10/28/2011 02:02 PM, Bob Liu wrote:
>>
>>
>> Oh, it looks like can fix this bug, but I also can't reproduce it whether with or without this patch.
>>
>
> Make sure CONFIG_DEBUG_LOCK_ALLOC was set.
>
Yeah, certainly, if not, the dmesg can't appear anyway.
WARNING: multiple messages have this Message-ID (diff)
From: Wanlong Gao <gaowanlong@cn.fujitsu.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, Linux-MM <linux-mm@kvack.org>
Subject: Re: [possible deadlock][3.1.0-g138c4ae] possible circular locking dependency detected
Date: Fri, 28 Oct 2011 14:11:37 +0800 [thread overview]
Message-ID: <4EAA4799.1020505@cn.fujitsu.com> (raw)
In-Reply-To: <CAA_GA1cKK45Z=YFUHRi-LUuhWpcs9ruW9xom_6LRmqhRNao+hQ@mail.gmail.com>
On 10/28/2011 02:02 PM, Bob Liu wrote:
>>
>>
>> Oh, it looks like can fix this bug, but I also can't reproduce it whether with or without this patch.
>>
>
> Make sure CONFIG_DEBUG_LOCK_ALLOC was set.
>
Yeah, certainly, if not, the dmesg can't appear anyway.
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next prev parent reply other threads:[~2011-10-28 6:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-28 3:42 [possible deadlock][3.1.0-g138c4ae] possible circular locking dependency detected Wanlong Gao
2011-10-28 3:42 ` Wanlong Gao
2011-10-28 5:44 ` Bob Liu
2011-10-28 5:44 ` Bob Liu
[not found] ` <CAA_GA1eGt-Xu1wQ-g0v+J7CD4OEAU1nm1Eviww1+mOKjYWEcMg@mail.gmail.com>
2011-10-28 5:49 ` Wanlong Gao
2011-10-28 6:02 ` Bob Liu
2011-10-28 6:02 ` Bob Liu
2011-10-28 6:11 ` Wanlong Gao [this message]
2011-10-28 6:11 ` Wanlong Gao
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