In some case, the cfg->dsunit is 32, the cfg->dswidth is zero
and cfg->agsize is 6400 in align_ag_geometry. So, the
(cfg->agsize % cfg->dswidth) will lead to coredump.
Here add check cfg->dswidth. If it is zero, goto validate.
Signed-off-by: Lixiaokeng <lixiaokeng@xxxxxxxxxx>
---
mkfs/xfs_mkfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index a135e06..71d3f74 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2725,6 +2725,9 @@ _("agsize rounded to %lld, sunit = %d\n"),
(long long)cfg->agsize, dsunit);
}
+ if (!cfg->dswidth)
+ goto validate;
+
if ((cfg->agsize % cfg->dswidth) == 0 &&
cfg->dswidth != cfg->dsunit &&
cfg->agcount > 1) {
--
