From b844716158dc8060d53785cbf4ecb022ebb255a2 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Wed, 8 Mar 2023 21:31:20 +0100 Subject: [PATCH] kernel: Add CONFIG_KERNEL_HARDLOCKUP_DETECTOR Make it possible to change the kernel configuration option CONFIG_HARDLOCKUP_DETECTOR from OpenWrt. Signed-off-by: Hauke Mehrtens --- config/Config-kernel.in | 12 ++++++++++++ target/linux/generic/config-5.15 | 1 + 2 files changed, 13 insertions(+) diff --git a/config/Config-kernel.in b/config/Config-kernel.in index ad23b2147961..c7b1864235bd 100644 --- a/config/Config-kernel.in +++ b/config/Config-kernel.in @@ -541,6 +541,18 @@ config KERNEL_SOFTLOCKUP_DETECTOR chance to run. The current stack trace is displayed upon detection and the system will stay locked up. +config KERNEL_HARDLOCKUP_DETECTOR + bool "Compile the kernel with detect Hard Lockups" + depends on KERNEL_DEBUG_KERNEL + help + Say Y here to enable the kernel to act as a watchdog to detect + hard lockups. + + Hardlockups are bugs that cause the CPU to loop in kernel mode + for more than 10 seconds, without letting other interrupts have a + chance to run. The current stack trace is displayed upon detection + and the system will stay locked up. + config KERNEL_DETECT_HUNG_TASK bool "Compile the kernel with detect Hung Tasks" depends on KERNEL_DEBUG_KERNEL diff --git a/target/linux/generic/config-5.15 b/target/linux/generic/config-5.15 index eab04238783e..3374c239e2e8 100644 --- a/target/linux/generic/config-5.15 +++ b/target/linux/generic/config-5.15 @@ -711,6 +711,7 @@ CONFIG_BLOCK=y # CONFIG_BONDING is not set # CONFIG_BOOKE_WDT is not set CONFIG_BOOKE_WDT_DEFAULT_TIMEOUT=3 +# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set # CONFIG_BOOTTIME_TRACING is not set -- 2.30.2