diff options
Diffstat (limited to 'sys/kern/subr_hibernate.c')
| -rw-r--r-- | sys/kern/subr_hibernate.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/kern/subr_hibernate.c b/sys/kern/subr_hibernate.c index 05dec26e810..bcae1db1eaa 100644 --- a/sys/kern/subr_hibernate.c +++ b/sys/kern/subr_hibernate.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_hibernate.c,v 1.124 2018/06/21 07:33:30 mlarkin Exp $ */ +/* $OpenBSD: subr_hibernate.c,v 1.125 2018/06/21 07:49:13 mlarkin Exp $ */ /* * Copyright (c) 2011 Ariane van der Steldt <ariane@stack.nl> @@ -807,6 +807,15 @@ hibernate_inflate_region(union hibernate_info *hib, paddr_t dest, hib->piglet_pa + (110 * PAGE_SIZE) + hib->retguard_ofs, 0); hib->retguard_ofs += PAGE_SIZE; + if (hib->retguard_ofs > 255 * PAGE_SIZE) { + /* + * XXX - this will likely reboot/hang most + * machines since the console output + * buffer will be unmapped, but there's + * not much else we can do here. + */ + panic("retguard move error, out of space"); + } } else { hibernate_enter_resume_mapping( HIBERNATE_INFLATE_PAGE, dest, 0); |