Re: [lxc-devel] segfault on shutdown if containers running

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Daniel Lezcano [dlezcano@xxxxxxxxxx] wrote:
> Adam Majer wrote:
>>>>>> chrdev_open + 0x148/0x167
>>>>>> chrdev_open + 0x0/0x167
>>>>>> __dentry_open + 0x148/0x260
>>>>>> do_flip_open + 0x468/0x85a
>>>>>> alloc_fd + ....
>>>>>> do_sys_gen + ...
>>>>>> system_call_fastpath + ....
>>>>>>
>>>>>> RIP tty_open
>>>>> which kernel are you using ? could you run :
>>>>>
>>>>>     $ addr2line -e <vmlinux> ffffffff803b26f1
>>>> Would setting this to yes produce a backtrace with line numbers?
>>> Yes and maybe CONFIG_FRAME_POINTER too.
>> Well, adding symbols didn't add line numbers to the backtrace. But now I
>> can use addr2line with the vmlinux (all 78mb of it) to get you guys a
>> backtrace with line numbers :)
>> So,
>> OOPS (NULL pointer deference) at
>>   drivers/char/tty_io.c:1321  (tty_open)
>> Backtrace,
>>   fs/char_dev.c:397 (chrdev_open)
>>   fs/char_dev.c:357 (chrdev_open)
>>   fs/open.c:841     (__dentry_open)
>>   arch/x86/include/asm/atomic_64.h:117 (do_flip_open)
>>   fs/file.c:459     (alloc_fd)
>>   ...
>
> Excellent !
>
> Suka ? Isn't this oops related to the newpts instance ?
>


What version of the kernel are you running ? 

Could it be this bug: http://lkml.org/lkml/2009/1/26/274
It was fixed by following commit and should be in 2.6.29.

	commit 808ffa3d302257b9dc37b1412c1fcdf976fcddac
	Author: Eric Paris <eparis@xxxxxxxxxx>
	Date:   Tue Jan 27 11:50:37 2009 +0000

Sukadev
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