lseek limit to 2G in 32bit env

Signed-off-by: Gui Chen <gui.chen@intel.com>

diff --git a/mic/utils/fs_related.py b/mic/utils/fs_related.py
index d1bf43f..4c2bd27 100644 (file)
--- a/mic/utils/fs_related.py
+++ b/mic/utils/fs_related.py
@@ -314,7 +314,11 @@ class SparseLoopbackDisk(LoopbackDisk):
         else:
             fd = os.open(self.lofile, flags)
 
-        os.lseek(fd, size, os.SEEK_SET)
+        try:
+            os.lseek(fd, size, os.SEEK_SET)
+        except:
+            # may be limited by 2G in 32bit env
+            os.lseek(fd, 2**31L - 1, os.SEEK_SET)
         os.write(fd, '\x00')
         os.close(fd)