Re: linux-next: Tree for June 11

[Rusty Russell]

On Sat, 12 Jun 2010 09:01:24 am Andrew Morton wrote:
> On Fri, 11 Jun 2010 14:17:38 +1000
> Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> 
> > I have created today's linux-next tree at
> > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > (patches at http://www.kernel.org/pub/linux/kernel/v2.6/next/ ).
> 
> Rusty broke your kernel!
> 
> oops: http://userweb.kernel.org/~akpm/IMG_20100611_155611.jpg
> 
> config: http://userweb.kernel.org/~akpm/stuff/config-akpm2-small.txt
> 
> (gdb) l *0xffffffff8105f9fb
> 0xffffffff8105f9fb is in get_ksymbol (kernel/module.c:2784).
> 2779                    if (mod->symtab[i].st_shndx == SHN_UNDEF)
> 2780                            continue;
> 2781    
> 2782                    /* We ignore unnamed symbols: they're uninformative
> 2783                     * and inserted at a whim. */
> 2784                    if (mod->symtab[i].st_value <= addr
> 2785                        && mod->symtab[i].st_value > mod->symtab[best].st_value
> 2786                        && *(mod->strtab + mod->symtab[i].st_name) != '\0'
> 2787                        && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name))
> 2788                            best = i;

Hmm, I can't reproduce this :(  I'm only 32 bit here, have to dig out my
64-bit machine tomorrow.

One wonders why we're in get_ksymbol at all.  Has something already gone
horribly wrong?

Rusty.
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