[syslinux] [PATCH] fix for boot crash of syslinux-4.xx

Geert Stappers stappers at stappers.nl
Fri Jul 6 00:55:37 PDT 2012


On Mon, Feb 20, 2012 at 01:00:59PM -0800, H. Peter Anvin wrote:
> On 10/21/2011 12:19 AM, Jan Safrata wrote:
> > 
> > 
> > Dissecting syslinux source code reveals, that the problem is within
> >   core/fs/cache.c
> > function cache_init(), where seems to be an invalid pointer used to store an
> > initial value - following patch fixes the problem by commenting out the
> > offending line, that seems not to be needed anyway:
> > 
> > --- syslinux-4.04/core/fs/cache.c-orig	2011-04-18 23:24:17.000000000 +0200
> > +++ syslinux-4.04/core/fs/cache.c	2011-09-29 10:54:46.000000000 +0200
> > @@ -40,7 +40,9 @@ void cache_init(struct device *dev, int
> >      cache = dev->cache_head + 1; /* First cache descriptor */
> >  
> >      head->prev  = &cache[dev->cache_entries-1];
> > -    head->next->prev = dev->cache_head;
> > +    /* following line crashes on some hw - NULL dereference? */
> > +    /* head->next->prev = dev->cache_head; */
> > +    /* it should not be needed anyway, since following loop does it too */
> >      head->block = -1;
> >      head->data  = NULL;
> > 
> > With that patch, syslinux works perfectly on the atom based embedded board as
> > well as on general pc.
> > 
> 
> Thanks for the reminder... I will look into it.
> 

I'm bringing this up because in the previous reminder asked
the submitter to ACK or NACK the patch.

It could be that I missed the NACK.

But today I took time to check my git clone
of git://git.zytor.com/syslinux/syslinux.git to see if the patch was
accepted. But I couldn't find it in my master branch.

Neither in the branch  origin/elflink.

So I can't find an 'ACK' in the git tree.


What will be the answer to the original patch posting?


Groeten
Geert Stappers
-- 
> And is there a policy on top-posting vs. bottom-posting?
Yes.



More information about the Syslinux mailing list