From ab1014863daceee0e7fbc3b8b99b3e0a5196ca1f Mon Sep 17 00:00:00 2001
From: Masamichi Takagi <masamichi.takagi@riken.jp>
Date: Mon, 15 Jun 2020 13:00:10 +0900
Subject: [PATCH] TO RESET: page_fault_handler: send SIGSTOP instead of SIGSEGV
 for debug

Change-Id: Ie281dbf43280464c8f412c8444a6861e43f28beb
---
 kernel/mem.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/kernel/mem.c b/kernel/mem.c
index a6241f6e..9ea3a4eb 100644
--- a/kernel/mem.c
+++ b/kernel/mem.c
@@ -1449,6 +1449,13 @@ out_linux:
 			reason, error);
 		unhandled_page_fault(thread, fault_addr, reason, regs);
 		preempt_enable();
+
+#ifdef ENABLE_FUGAKU_DEBUG
+		kprintf("%s: sending SIGSTOP to TID: %d\n", __func__, thread->tid);
+		do_kill(thread, thread->proc->pid, thread->tid, SIGSTOP, NULL, 0);
+		goto out;
+#endif
+
 		memset(&info, '\0', sizeof info);
 		if (error == -ERANGE) {
 			info.si_signo = SIGBUS;