It looks like the current lvm code still has the memory leak when
resizing snapshots. The lv_block_exception and lv_snapshot_hash_table
fields are set to ones newly allocated for the new size, but the old
ones are not freed. The following patch should fix it:
--- linux/drivers/md/lvm.c.orig Thu Mar 14 08:21:16 2002
+++ linux/drivers/md/lvm.c Thu Mar 14 08:23:07 2002
@@ -2489,6 +2489,8 @@
memcpy(new_lv->lv_block_exception,
old_lv->lv_block_exception, size);
+ vfree(old_lv->lv_block_exception);
+ vfree(old_lv->lv_snapshot_hash_table);
old_lv->lv_remap_end = new_lv->lv_remap_end;
old_lv->lv_block_exception = new_lv->lv_block_exception;
old_lv->lv_snapshot_hash_table =
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