linux-kernel - Re: system gets stuck in a lock during boot

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Date:	Tue, 18 Aug 2009 13:06:14 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: system gets stuck in a lock during boot

Steven Rostedt wrote:
> On Tue, 18 Aug 2009, Justin Mattock wrote:
>
>    
>> On Tue, Aug 18, 2009 at 9:09 AM, Steven Rostedt<rostedt@...dmis.org>  wrote:
>>      
>>> On Tue, Aug 18, 2009 at 12:49:06PM +0200, Frederic Weisbecker wrote:
>>>        
>>>> On Thu, Aug 13, 2009 at 08:42:21AM -0700, Justin P. Mattock wrote:
>>>>          
>>>>> I posted already and had no reply,
>>>>> I cannot boot my system with the latest git
>>>>>
>>>>> seems to be stuck in some lock:
>>>>>
>>>>> [   0.655640] [<ffffffff81440c33>] panic+0x84/0x129
>>>>> [   0.655883] [<ffffffff81063f96>]  do_exit+0x84/0x67e
>>>>> [   0.656125] [<ffffffff81445044>] oops_end+0x9c/0xb7
>>>>> [   0.656368] [<ffffffff81044a6c>] no_context+0x200/0x223
>>>>> [   0.656611] [<ffffffff81442d3d>] ? __mutex_lock_slowpath+0x226/0x249
>>>>> [   0.656848] [<ffffffff81044c36>] __bad_area_nosemaphore+0x1a7/0x1e1
>>>>> [   0.657097] [<ffffffff81442b01>]? mutex_unlock+0x1c/0x32
>>>>> [   0.657097] [<ffffffff811ce094>] ? inode_doinit_with_dentry+0x533/0x5be
>>>>> [   0.657579] [<ffffffff81443ee0>] ? _spin_unlock+0x1c/0x32
>>>>> [   0.657822] [<ffffffff81044c91>] bad_area_nosemaphore+0x2a/0x40
>>>>> [   0.658066] [<ffffffff811ce149>] ? selinux_d_instantiate+0x2a/0x40
>>>>> [   0.658309] [<ffffffff8144687d>] do_page_fault+0x192/0x2dd
>>>>> [   0.658549] [<ffffffff814444cf>] page_fault+0x1f/0x30
>>>>> [   0.658791] [<ffffffff8120e856>] ? strcmp+0x17/0x46
>>>>> [   0.659040] [<ffffffff810b9ca0>] event_create_dir+0x49/0x37b
>>>>>            
>>>>
>>>> Ouch...
>>>>
>>>> I've never seen such panic. Could you send me your config, hopefully
>>>> I could reproduce it?
>>>>          
>>> Send me the config too please.
>>>
>>> -- Steve
>>>
>>>
>>>        
>> yeah this happens with rc6 but not with rc5.
>>
>> The system is a linux from scratch build
>> x86_64 I used these flags for building everything:
>>
>>   CFLAGS=" -m64 -mtune=core2 -march=core2 -mfpmath=both  -O2 -pipe
>>   -fomit-frame-pointer -fstack-protector" CXXFLAGS="${CFLAGS}" MAKEOPTS="{-j3}"
>>
>> also:  I have a macbook(not x86_64) that is running rc6 that seems
>> to be fine.(I can double check).
>>
>> attached is .config, dmesg as well.
>>      
>
> I used your config and I can not reproduce the bug you have. Was this a
> constant issue? That is, was it reproducible at every boot?
>
> -- Steve
yes.
every boot this shows up.

Justin P. Mattock

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