[PATCH 0/1] loongson: Fix idle VS timer enqueue
From: Marco Crivellari
Date: Thu Feb 06 2025 - 11:30:23 EST
This patch aim to fix issues if timers are queued because __arch_cpu_idle()
only checks if TIF_NEED_RESCHED is set before going to sleep.
Changes are described in [1], and [2] improve the patch further.
The following patch is the result of [1] and [2] combined.
Code compiled successfully, but I couldn't test the changes because of some
trouble emulating a loongarch machine; I tried to boot with and without
this patch, but a panic occurred, due likely to a wrong VM configuration
(panic occurred right after the i8042 probing).
- [1] https://lore.kernel.org/all/20230811170049.308866-5-frederic@xxxxxxxxxx/#t
- [2] https://lore.kernel.org/all/06cf8750-901d-2f65-fb9e-81980688e017@xxxxxxxxxxx/
Peter Zijlstra (1):
loongson: Fix idle VS timer enqueue
arch/loongarch/kernel/genex.S | 33 +++++++++++++++++++--------------
arch/loongarch/kernel/idle.c | 3 +--
arch/loongarch/kernel/reset.c | 23 ++++++++++++++---------
3 files changed, 34 insertions(+), 25 deletions(-)
--
2.48.1