lkml.org 
[lkml]   [2008]   [May]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 1/8] Scaling msgmni to the amount of lowmem
From
Date

On Wed, 2008-05-07 at 08:17 -0500, Serge E. Hallyn wrote:
> Quoting Nadia Derbey (Nadia.Derbey@bull.net):
> > Serge E. Hallyn wrote:
> >> Quoting Luck, Tony (tony.luck@intel.com):
> >>>> Well, this printk had been suggested by somebody (sorry I don't remember
> >>>> who) when I first submitted the patch. Actually I think it might be
> >>>> useful for a sysadmin to be aware of a change in the msgmni value: we
> >>>> have the message not only at boot time, but also each time msgmni is
> >>>> recomputed because of a change in the amount of memory.
> >>>
> >>> If the message is directed at the system administrator, then it would
> >>> be nice if there were some more meaningful way to show the namespace
> >>> that is affected than just printing the hex address of the kernel
> >>> structure.
> >>>
> >>> As the sysadmin for my test systems, printing the hex address is mildly
> >>> annoying ... I now have to add a new case to my scripts that look at
> >>> dmesg output for unusual activity.
> >>>
> >>> Is there some better "name for a namespace" than the address? Perhaps
> >>> the process id of the process that instantiated the namespace???
> >> I agree with Tony here. Aside from the nuisance it is to see that
> >> message on console every time I unshare a namespace, a printk doesn't
> >> seem like the right way to output the info.
> >
> > But you agree that this is happening only because you're doing tests
> > related to namespaces, right?
>
> Yup :)
>
> > I don't think that in a "standard" configuration this will happen very
> > frequently, but may be I'm wrong.
> >
> >> At most I'd say an audit
> >> message.
>
> > That's a good idea. Thanks, Serge. I'll do that.

I'm not familiar with kernel policies regarding audit messages. Are
audit messages treated anything like kernel interfaces when it comes to
removing/changing them?

Cheers,
-Matt Helsley



\
 
 \ /
  Last update: 2008-05-07 20:15    [W:0.092 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site