[LV-kern-commit] CVS: kernel-2.4/arch/vax/mm fault.c,1.11,1.12

[Andy P. <at...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/mm
In directory usw-pr-cvs1:/tmp/cvs-serv5308

Modified Files:
	fault.c 
Log Message:
Add a new debugging define for debugging user page faults


Index: fault.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/mm/fault.c,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- fault.c	2001/08/31 11:50:57	1.11
+++ fault.c	2001/09/06 23:40:41	1.12
@@ -47,6 +47,7 @@
 #define REASON_WRITE   (1<<2)
 
 #undef VAX_MM_DEBUG 
+#define VAX_MM_DEBUG_USER_FAULTS
 
 static void 
 do_page_fault(struct accvio_info *info, struct pt_regs *regs)
@@ -126,15 +127,19 @@
 	up(&mm->mmap_sem);
 
         if (user_mode(regs)) {
-      	       printk(KERN_ALERT "Unable to do USER paging request: "
-	       "pid %d, virtual address %08lx, reason mask %08x, "
+#ifdef VAX_MM_DEBUG_USER_FAULTS	   
+      	        printk(KERN_ALERT "Unable to do USER paging request: "
+	        "pid %d, virtual address %08lx, reason mask %08x, "
 		"PC %08x, PSL %08x\n", 
 		current->pid, address, reason, info->pc, info->psl);
 	        
 	        show_regs(regs);
                 show_cpu_regs(); 
+                printk("\nStack dump\n"); 
+                hex_dump((void *)((regs->fp&~0xf)-64), 768);
 	   
 		printk("do_page_fault: sending SIGSEGV\n");
+#endif	   
 		force_sig(SIGSEGV, current);
 		return;
 	}