summaryrefslogtreecommitdiffstats
path: root/userprog/exception.c
diff options
context:
space:
mode:
Diffstat (limited to 'userprog/exception.c')
-rw-r--r--userprog/exception.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/userprog/exception.c b/userprog/exception.c
index debe7f0..a2873d5 100644
--- a/userprog/exception.c
+++ b/userprog/exception.c
@@ -175,7 +175,7 @@ page_fault (struct intr_frame *f)
175 printf ("Unable to load page at %p in %s context.\n", 175 printf ("Unable to load page at %p in %s context.\n",
176 fault_addr, user ? "user" : "kernel"); 176 fault_addr, user ? "user" : "kernel");
177 } 177 }
178 /* there's no page in our page table but we might still have an valid 178 /* there's no page in our page table but we might still have a valid
179 stack access and need to expand our stack. so just check for that. 179 stack access and need to expand our stack. so just check for that.
180 the maxium offset we consider as a valid access is caused by the PUSHA 180 the maxium offset we consider as a valid access is caused by the PUSHA
181 instruction. it's 32 bytes below the current stack pointer */ 181 instruction. it's 32 bytes below the current stack pointer */