On Tue, 28 Feb 2012 09:19:28 +0900 Simon Horman <horms at verge.net.au> wrote: > > > --- a/kernel/kexec.c > > > +++ b/kernel/kexec.c > > > @@ -1462,7 +1462,9 @@ static int __init crash_save_vmcoreinfo_init(void) > > > > > > VMCOREINFO_SYMBOL(init_uts_ns); > > > VMCOREINFO_SYMBOL(node_online_map); > > > +#ifdef CONFIG_MMU > > > VMCOREINFO_SYMBOL(swapper_pg_dir); > > > +#endif > > > VMCOREINFO_SYMBOL(_stext); > > > VMCOREINFO_SYMBOL(vmlist); > > > > Well, what might be the effects of this patch? nommu crashfiles will > > no longer have the swapper_pg_dir string? What are the chances that > > someone's (badly written!) downstream tool will crash and burn if this > > is absent? > > My understanding is that up until this patch creating a dump > for nonmmu platform wouldn't work. Surprised. From reading the code I expect it would have emitted SYMBOL(swapper_pg_dir)=0 ?
