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https://bugs.exim.org/show_bug.cgi?id=3047
https://bugs.gentoo.org/922780
diff --git a/src/src/transports/appendfile.c b/src/src/transports/appendfile.c
index ec41ca035..91b353079 100644
--- a/src/transports/appendfile.c
+++ b/src/transports/appendfile.c
@@ -153,6 +153,10 @@ static const char *mailbox_formats[] = {
(!ob->quota_warn_threshold_is_percent || ob->quota_value > 0))
+/* Free memory allocated by PCRE2 every so often, because a recent version
+is now using 20kB for every match call */
+
+#define RESET_STORE_FILECNT 1000
/*************************************************
* Setup entry point *
@@ -661,13 +665,14 @@ Returns: the sum of the sizes of the stattable files
off_t
check_dir_size(const uschar * dirname, int * countptr, const pcre2_code * re)
{
-DIR *dir;
+DIR * dir;
off_t sum = 0;
-int count = *countptr;
+int count = *countptr, lcount = RESET_STORE_FILECNT;
+rmark reset_point = store_mark();
if (!(dir = exim_opendir(dirname))) return 0;
-for (struct dirent *ent; ent = readdir(dir); )
+for (struct dirent * ent; ent = readdir(dir); )
{
uschar * path, * name = US ent->d_name;
struct stat statbuf;
@@ -675,6 +680,11 @@ for (struct dirent *ent; ent = readdir(dir); )
if (Ustrcmp(name, ".") == 0 || Ustrcmp(name, "..") == 0) continue;
count++;
+ if (--lcount == 0)
+ {
+ store_reset(reset_point); reset_point = store_mark();
+ lcount = RESET_STORE_FILECNT;
+ }
/* If there's a regex, try to find the size using it */
@@ -726,6 +736,7 @@ DEBUG(D_transport)
debug_printf("check_dir_size: dir=%s sum=" OFF_T_FMT " count=%d\n", dirname,
sum, count);
+store_reset(reset_point);
*countptr = count;
return sum;
}
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