On Fri, Feb 24, 2012 at 02:40:47PM +0000, Will Deacon wrote: > nommu platforms don't have very interesting swapper_pg_dir pointers and > usually just #define them to NULL, meaning that we can't include them in > the vmcoreinfo on the kexec crash path. > > This patch only saves the swapper_pg_dir if we have an MMU. Hi Will, might this cover cases where swapper_pg_dir is interesting? > Signed-off-by: Will Deacon <will.deacon at arm.com> > --- > kernel/kexec.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/kernel/kexec.c b/kernel/kexec.c > index 7b08867..cb5d13c 100644 > --- 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); > > -- > 1.7.4.1 > > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec >
