linux-kernel - Re: dell_smbios KASAN bug

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Date:   Wed, 20 Mar 2019 15:44:32 -0500
From:   Tom Zanussi <tzanussi@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Pali Rohár <pali.rohar@...il.com>,
        Mario Limonciello <mario.limonciello@...l.com>,
        linux-kernel@...r.kernel.org
Subject: Re: dell_smbios KASAN bug

On Wed, 2019-03-20 at 16:32 -0400, Steven Rostedt wrote:
> On Wed, 20 Mar 2019 15:28:56 -0500
> Tom Zanussi <tzanussi@...il.com> wrote:
> 
> > > > Unfortunately, no.  
> > > 
> > > That's really weird. I would recommend throwing in a bunch of
> > > printks
> > > to see if things are being freed and set, to make sure this code
> > > is
> > > hit
> > > and something else isn't just corrupting it.
> > >   
> > 
> > Actually the patch does make the KASAN bug go away - I'm so used to
> > building without modules that I forgot to rebuild the module after
> > applying the patch, sigh.
> 
> I wasn't about to say anything. That's why I suggested adding printks
> and trying it again ;-)
> 

Yeah, when a simple printk doesn't work, you know there's something
idiotic going on.  Thanks for the tip ;-)

Tom

> -- Steve