Re: [PATCH v3 6/6] freezer,sched: Rewrite core freezer logic

From: Christian Borntraeger
Date: Mon Sep 26 2022 - 10:56:03 EST




Am 26.09.22 um 14:55 schrieb Peter Zijlstra:

Could you please test with something like the below on? I can boot that
with KVM, but obviously I didn't suffer any weirdness to begin with :/

---
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4e6a6417211f..ef9ccfc3a8c0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4051,6 +4051,8 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
unsigned long flags;
int cpu, success = 0;
+ WARN_ON_ONCE(state & TASK_FREEZABLE);
+
preempt_disable();
if (p == current) {
/*

Does not seem to trigger.