linux-kernel - Re: [PATCH 0/5] dev_<level> and dynamic

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Date:	Thu, 30 Aug 2012 11:25:21 -0700
From:	Joe Perches <joe@...ches.com>
To:	Jim Cromie <jim.cromie@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, netdev@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Jason Baron <jbaron@...hat.com>, Kay Sievers <kay@...y.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] dev_<level> and dynamic_debug cleanups

On Thu, 2012-08-30 at 11:43 -0600, Jim Cromie wrote:
> On Sun, Aug 26, 2012 at 5:25 AM, Joe Perches <joe@...ches.com> wrote:
> > The recent commit to fix dynamic_debug was a bit unclean.
> > Neaten the style for dynamic_debug.
> > Reduce the stack use of message logging that uses netdev_printk
> > Add utility functions dev_printk_emit and dev_vprintk_emit for /dev/kmsg.
> >
> > Joe Perches (5):
> >   dev_dbg/dynamic_debug: Update to use printk_emit, optimize stack
> >   netdev_printk/dynamic_netdev_dbg: Directly call printk_emit
> >   netdev_printk/netif_printk: Remove a superfluous logging colon
> >   dev: Add dev_vprintk_emit and dev_printk_emit
> >   device and dynamic_debug: Use dev_vprintk_emit and dev_printk_emit
> >
> 
> Ive tested this on 2 builds differing only by DYNAMIC_DEBUG
> It works for me on x86-64
> 
> However, I just booted a non-dyndbg build on x86-32, and got this.
> 
> 
> root@...age:~# dmesg | grep Unknown
> mac80211: Unknown symbol __dynamic_dev_dbg (err 0)
> mac80211: Unknown symbol __dynamic_pr_debug (err 0)
> scx200_acb: Unknown symbol __dynamic_dev_dbg (err 0)
> scx200_acb: Unknown symbol __dynamic_pr_debug (err 0)
> hwmon: Unknown symbol __dynamic_dev_dbg (err 0)
> nsc_gpio: Unknown symbol __dynamic_dev_dbg (err 0)
> nsc_gpio: Unknown symbol __dynamic_dev_dbg (err 0)
> root@...age:~#
> 
> It may be my error, will investigate asap,
> but wanted to report now.

Thanks, but I don't know how this is possible.
There are no 32/64 component tests in this code.

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