From 9e51291aed1bd95ef4c7923905f70f8e1d4bb4ea Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Sun, 12 Jan 2020 02:02:29 +0100
Subject: [PATCH] Kernel: Disable SMAP protection while capturing profile
 samples

---
 Kernel/Scheduler.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Kernel/Scheduler.cpp b/Kernel/Scheduler.cpp
index f5a431d616..5c78d2a5d8 100644
--- a/Kernel/Scheduler.cpp
+++ b/Kernel/Scheduler.cpp
@@ -562,6 +562,7 @@ void Scheduler::timer_tick(RegisterDump& regs)
     Process::update_info_page_timestamp(tv);
 
     if (current->process().is_profiling()) {
+        SmapDisabler disabler;
         auto backtrace = current->raw_backtrace(regs.ebp);
         auto& sample = Profiling::next_sample_slot();
         sample.pid = current->pid();