diff -Nru linux-2.6.21/arch/arm/kernel/ptrace.c.orig linux-2.6.21/arch/arm/kernel/ptrace.c
--- linux-2.6.21/arch/arm/kernel/ptrace.c.orig	2008-11-13 09:41:47.000000000 -0800
+++ linux-2.6.21/arch/arm/kernel/ptrace.c	2008-11-18 14:52:53.000000000 -0800
@@ -523,12 +523,24 @@
 {
 	unsigned long tmp;
 
-	if (off & 3 || off >= sizeof(struct user))
+	/* [jsun] Hack to get gdbserver working;
+	 * Inspired by http://www.ucdot.org/article.pl?sid=03/01/07/0214244&mode=thread */
+
+	if (off & 3)
 		return -EIO;
 
 	tmp = 0;
-	if (off < sizeof(struct pt_regs))
+	if (off < sizeof(struct pt_regs)) {
 		tmp = get_user_reg(tsk, off >> 2);
+	} else if (off == 4*49) {
+	    tmp = tsk->mm->start_code;
+	} else if (off == 4*50) {
+	    tmp = tsk->mm->start_data;
+	} else if (off == 4*51) {
+	    tmp = tsk->mm->end_code;
+	} else if (off == 4*52) {
+	    tmp = tsk->mm->end_data;
+	}
 
 	return put_user(tmp, ret);
 }