X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fuserprog%2Fprocess.c;h=88c9d8dcae20995bb5e7dc3b4b2d5a42ca5b8e6e;hb=251b51f76f0594460e1cfbf2c05576fb445b861b;hp=b9a199e64063f395924b535bfc545b4207cb4e4a;hpb=7d4e3dda080a47db88616f1c0d975f2091be47f1;p=pintos-anon

diff --git a/src/userprog/process.c b/src/userprog/process.c
index b9a199e..88c9d8d 100644
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -54,6 +54,8 @@ execute_thread (void *filename_)
 
   /* Initialize interrupt frame and load executable. */
   memset (&if_, 0, sizeof if_);
+  if_.gs = SEL_UDSEG;
+  if_.fs = SEL_UDSEG;
   if_.es = SEL_UDSEG;
   if_.ds = SEL_UDSEG;
   if_.cs = SEL_UCSEG;
@@ -71,7 +73,7 @@ execute_thread (void *filename_)
 
   /* Start the user process by simulating a return from an
      interrupt, implemented by intr_exit (in
-     threads/intr-stubs.pl).  Because intr_exit takes all of its
+     threads/intr-stubs.S).  Because intr_exit takes all of its
      arguments on the stack in the form of a `struct intr_frame',
      we just point the stack pointer (%esp) to our stack frame
      and jump to it. */