Gitweb:
https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=2cf0f90780bed64cb40...
Commit: 2cf0f90780bed64cb4062eb6dfa714ed03eecfb7
Parent: 3bd9d81b29fb8ba490d87b3557861bf00047855d
Author: Heinz Mauelshagen <heinzm(a)redhat.com>
AuthorDate: Wed Jun 24 13:52:53 2020 +0200
Committer: Heinz Mauelshagen <heinzm(a)redhat.com>
CommitterDate: Wed Jun 24 13:52:56 2020 +0200
lv{resize,extend,reduce}: reject size change on 2-legged raid5*
Reject size changing request in to avoid 'Bus error' and
display hint to convert to more stripes.
Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1784351
---
lib/metadata/lv_manip.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index c1c86aa4c..142435bbb 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -5066,6 +5066,7 @@ static int _lvresize_check(struct logical_volume *lv,
struct lvresize_params *lp)
{
struct volume_group *vg = lv->vg;
+ struct lv_segment *seg = first_seg(lv);
if (lv_is_external_origin(lv)) {
/*
@@ -5089,6 +5090,12 @@ static int _lvresize_check(struct logical_volume *lv,
return 0;
}
+ if (seg && seg_is_any_raid5(seg) && seg->area_count < 3) {
+ log_error("Cannot resize %s LV %s. Convert to more stripes first.",
+ lvseg_name(seg), display_lvname(lv));
+ return 0;
+ }
+
if (lv_is_raid(lv) &&
lp->resize == LV_REDUCE) {
unsigned attrs;