From: Ben Gras <ben@minix3.org>
Date: Sat, 16 Mar 2013 04:13:02 +0000 (+0000)
Subject: vfs: coredump fix: write zeroes for missing memory
X-Git-Tag: v3.3.0~1078
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=4f9139778da385083c8de55116110dbebefd06df;p=minix.git

vfs: coredump fix: write zeroes for missing memory
---

diff --git a/servers/vfs/coredump.c b/servers/vfs/coredump.c
index 43ccfda4f..9b5d24573 100644
--- a/servers/vfs/coredump.c
+++ b/servers/vfs/coredump.c
@@ -310,9 +310,9 @@ static void dump_segments(struct filp *f, Elf_Phdr phdrs[], int phnum)
 			(phys_bytes) CLICK_SIZE);
 
 		if(r != OK) {
-			printf("VFS: vircopy failed for %d @ 0x%lx during coredump\n",
-				fp->fp_endpoint, p);
-			break;
+			/* memory didn't exist; write as zeroes */
+			memset(buf, 0, sizeof(buf));
+			continue;
 		}
 
 		write_buf(f, (char *) buf, (off + CLICK_SIZE <= (off_t) len) ?