From c4dc5c0aa7aa412bf85f0f6d646ea0c307eb4591 Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Fri, 19 Mar 2010 11:59:20 +0100 Subject: [PATCH] mdmon: Fix crash if /proc/mdstat lists 0.9 superblocks Signed-off-by: Michal Marek ================================================================================ --- mdadm-3.1.4/mdmon.c +++ mdadm-3.1.4/mdmon.c @@ -300,7 +300,8 @@ /* launch an mdmon instance for each container found */ mdstat = mdstat_read(0, 0); for (e = mdstat; e; e = e->next) { - if (strncmp(e->metadata_version, "external:", 9) == 0 && + if (e->metadata_version && + strncmp(e->metadata_version, "external:", 9) == 0 && !is_subarray(&e->metadata_version[9])) { devname = devnum2devname(e->devnum); /* update cmdline so this mdmon instance can be