From: Ben Gras <ben@minix3.org>
Date: Tue, 11 May 2010 15:14:10 +0000 (+0000)
Subject: kernel - don't print info about scheduled process if pagefault happened in kernel.
X-Git-Tag: v3.1.7~65
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=7c5e1d1b2948c1341e8c4ecb37232abe6d7c9dc0;p=minix.git

kernel - don't print info about scheduled process if pagefault happened in kernel.
---

diff --git a/kernel/arch/i386/exception.c b/kernel/arch/i386/exception.c
index 613120eba..dd16cccb8 100644
--- a/kernel/arch/i386/exception.c
+++ b/kernel/arch/i386/exception.c
@@ -51,15 +51,19 @@ PRIVATE void pagefault( struct proc *pr,
 			pr->p_reg.pc = (reg_t) phys_copy_fault;
 			pr->p_reg.retreg = pagefaultcr2;
 		}
-
+	
 		return;
 	}
 
+	if(is_nested) {
+		panic("pagefault in kernel at address 0x%lx", pagefaultcr2);
+	}
+
 	/* System processes that don't have their own page table can't
 	 * have page faults. VM does have its own page table but also
 	 * can't have page faults (because VM has to handle them).
 	 */
-	if(is_nested || (pr->p_endpoint <= INIT_PROC_NR &&
+	if((pr->p_endpoint <= INIT_PROC_NR &&
 	 !(pr->p_misc_flags & MF_FULLVM)) || pr->p_endpoint == VM_PROC_NR) {
 		/* Page fault we can't / don't want to
 		 * handle.
@@ -70,7 +74,7 @@ PRIVATE void pagefault( struct proc *pr,
 		proc_stacktrace(pr);
 		printf("pc of pagefault: 0x%lx\n", frame->eip);
   		panic("page fault in system process: %d",  pr->p_endpoint);
-
+		
 		return;
 	}