From 72922602090bf9ff02406da0d373c420cafcd784 Mon Sep 17 00:00:00 2001
From: Mark <alnyan@airmail.cc>
Date: Sun, 18 Oct 2020 20:20:18 +0300
Subject: [PATCH] proc: fixup TSS.RSP0 on signal return

---
 sys/thread.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/thread.c b/sys/thread.c
index 9710a2b..131e2db 100644
--- a/sys/thread.c
+++ b/sys/thread.c
@@ -271,6 +271,7 @@ void thread_sigenter(int signum) {
     context_sigenter(thr->signal_entry, signal_rsp3, signum);
 
     thr->data.rsp0_top = old_rsp0_top;
+    get_cpu()->tss->rsp0 = thr->data.rsp0_top;
 }
 
 __attribute__((noreturn)) void sys_exit(int status) {