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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
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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