Am 26.09.22 um 15:37 schrieb Peter Zijlstra:
On Mon, Sep 26, 2022 at 03:23:10PM +0200, Christian Borntraeger wrote:
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.
Moo -- quite the puzzle this :/ I'll go stare at it more then.
Hmm,
#define ___wait_is_interruptible(state) \
(!__builtin_constant_p(state) || \
state == TASK_INTERRUPTIBLE || state == TASK_KILLABLE) \
That would not trigger when state is also TASK_FREEZABLE, no?
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