diff --git a/Makefile.crtools b/Makefile.crtools
index 4d81c36a6..aa3461165 100644
--- a/Makefile.crtools
+++ b/Makefile.crtools
@@ -45,6 +45,7 @@ obj-y	+= file-lock.o
 obj-y	+= page-pipe.o
 obj-y	+= page-xfer.o
 obj-y	+= page-read.o
+obj-y	+= kerndat.o
 
 ifneq ($(MAKECMDGOALS),clean)
 incdeps := y
diff --git a/cr-dump.c b/cr-dump.c
index 31cc1122f..574355102 100644
--- a/cr-dump.c
+++ b/cr-dump.c
@@ -58,6 +58,7 @@
 #include "elf.h"
 #include "file-lock.h"
 #include "page-xfer.h"
+#include "kerndat.h"
 
 #include "asm/dump.h"
 
@@ -1552,6 +1553,9 @@ int cr_dump_tasks(pid_t pid, const struct cr_options *opts)
 	pr_info("Dumping processes (pid: %d)\n", pid);
 	pr_info("========================================\n");
 
+	if (kerndat_init())
+		goto err;
+
 	if (cpu_init())
 		goto err;
 
diff --git a/include/kerndat.h b/include/kerndat.h
new file mode 100644
index 000000000..38b29391e
--- /dev/null
+++ b/include/kerndat.h
@@ -0,0 +1,11 @@
+#ifndef __CR_KERNDAT_H__
+#define __CR_KERNDAT_H__
+/*
+ * kerndat stands for "kernel data" and is a collection
+ * of run-time information about current kernel
+ */
+
+int kerndat_init(void);
+
+extern dev_t kerndat_shmem_dev;
+#endif
diff --git a/kerndat.c b/kerndat.c
new file mode 100644
index 000000000..7ae49295e
--- /dev/null
+++ b/kerndat.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include "log.h"
+#include "kerndat.h"
+#include "asm/types.h"
+
+dev_t kerndat_shmem_dev;
+
+/*
+ * Anonymous shared mappings are backed by hidden tmpfs
+ * mount. Find out its dev to distinguish such mappings
+ * from real tmpfs files maps.
+ */
+
+static int kerndat_get_shmemdev(void)
+{
+	void *map;
+	char maps[128];
+	struct stat buf;
+
+	map = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE,
+			MAP_SHARED | MAP_ANONYMOUS, 0, 0);
+	if (map == MAP_FAILED) {
+		pr_perror("Can't mmap piggie");
+		return -1;
+	}
+
+	sprintf(maps, "/proc/self/map_files/%lx-%lx",
+			(unsigned long)map, (unsigned long)map + PAGE_SIZE);
+	if (stat(maps, &buf) < 0) {
+		pr_perror("Can't stat piggie");
+		return -1;
+	}
+
+	munmap(map, PAGE_SIZE);
+
+	kerndat_shmem_dev = buf.st_dev;
+	pr_info("Found anon-shmem piggie at %"PRIx64"\n", kerndat_shmem_dev);
+	return 0;
+}
+
+int kerndat_init(void)
+{
+	int ret;
+
+	ret = kerndat_get_shmemdev();
+
+	return ret;
+}
diff --git a/proc_parse.c b/proc_parse.c
index e735e13dc..6920bd467 100644
--- a/proc_parse.c
+++ b/proc_parse.c
@@ -18,6 +18,7 @@
 #include "file-lock.h"
 #include "pstree.h"
 #include "fsnotify.h"
+#include "kerndat.h"
 
 #include "proc_parse.h"
 #include "protobuf.h"
@@ -133,37 +134,9 @@ static int parse_vmflags(char *buf, struct vma_area *vma_area)
 	return 0;
 }
 
-static int is_anon_shmem_map(dev_t dev)
+static inline int is_anon_shmem_map(dev_t dev)
 {
-	static dev_t shmem_dev = 0;
-
-	if (!shmem_dev) {
-		void *map;
-		char maps[128];
-		struct stat buf;
-
-		map = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE,
-				MAP_SHARED | MAP_ANONYMOUS, 0, 0);
-		if (map == MAP_FAILED) {
-			pr_perror("Can't mmap piggie");
-			return -1;
-		}
-
-		sprintf(maps, "/proc/%d/map_files/%lx-%lx",
-				getpid(), (unsigned long)map,
-				(unsigned long)map + PAGE_SIZE);
-		if (stat(maps, &buf) < 0) {
-			pr_perror("Can't stat piggie");
-			return -1;
-		}
-
-		munmap(map, PAGE_SIZE);
-
-		shmem_dev = buf.st_dev;
-		pr_info("Found anon-shmem piggie at %"PRIx64"\n", shmem_dev);
-	}
-
-	return shmem_dev == dev;
+	return kerndat_shmem_dev == dev;
 }
 
 int parse_smaps(pid_t pid, struct vm_area_list *vma_area_list, bool use_map_files)