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From: Jun Sun <jsun@mvista.com>
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Scott A McConnell <samcconn@cotw.com>, linux-mips@oss.sgi.com
Subject: Re: kernel/printk.c problem
Date: Wed, 18 Apr 2001 10:32:27 -0700	[thread overview]
Message-ID: <3ADDCFAB.549DA4FA@mvista.com> (raw)
In-Reply-To: Pine.GSO.4.10.10104180852450.17832-100000@escobaria.sonytel.be

Geert Uytterhoeven wrote:
> 
> On Tue, 17 Apr 2001, Scott A McConnell wrote:
> > struct console *console_drivers = NULL;                          <----
> > Need the NULL.
> >
> > Otherwise, bad things can happen on the following statement in printk
> >
> > ~line 311
> >
> >        if ((c->flags & CON_ENABLED) && c->write){
> 
> Current policy is not explicitly initializing variables to zero. If this causes
> problems, there's a bug in the routine that clears the BSS on kernel entry.
> 

Interesting.  What is the reason behind the policy?  Is that because
initialized variable are put in a different section that takes more size in
the image?

Jun

  parent reply	other threads:[~2001-04-18 17:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-17 22:11 kernel/printk.c problem Scott A McConnell
2001-04-18  6:53 ` Geert Uytterhoeven
2001-04-18 16:56   ` Scott A McConnell
2001-04-18 17:32   ` Jun Sun [this message]
2001-04-18 18:28     ` Juan Quintela

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