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SubjectRe: [PATCH]: md: Initialize ctl_name field of table raid_root_table/raid_dir_table to avoid dump_trace info in debug kernel
Very thanks for the reply.

Neil

On 2012/3/14 10:35, NeilBrown wrote:
> On Tue, 13 Mar 2012 19:14:05 -0700 ebiederm@xmission.com (Eric W. Biederman)
> wrote:
>
>> NeilBrown<neilb@suse.de> writes:
>>
>>> On Mon, 12 Mar 2012 11:58:53 +0800 qing gu<qing.gu@oracle.com> wrote:
>>>
>>>> This patch is used to dispense trace info when system boots with debug
>>>> kernel. I have verified it on RHEL6.2& SLES11.2. Both work fine.
>>>> In the failure case, system logs that:
>>>>
>>>> /Feb 21 19:33:55 nsgbj-216-137 kernel: sysctl_check_dir: failed: /dev ref: /dev .7
> .....
>
>>> These lines were removed in November 2009 by Eric Biederman in
>>> commit 894d2491153a9f8270dbed21175d06fde4eba6c7
>>>
>>> So I'm not keen on adding them back without understanding the history.
>>>
>>> Eric: Do we need these after all?
>> For the main trunk no. The .ctl_name field no longer exists.
>>
>> kernel/binary_sysctl.c is used to provide backwards compatibility with
>> the old binary names.
>>
>> There might be a point for doing something in -stable or someone's
>> enterprise kernel if some messed up set of backports were merged.
>>
>> Eric
> Thanks for the quick response Eric!!
>
> Qing: It looks like this is not an issue in mainline.
> If you want to get something fixed in SLES or RHEL, I suggest you log an
> issue in the relevant bugzillas (though I just checked SLES11-SP2, and
> it doesn't mention sysctl_check_dir at all).
>
> NeilBrown


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