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kernel: Add CONFIG_KERNEL_HARDLOCKUP_DETECTOR

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Make it possible to change the kernel configuration option
CONFIG_HARDLOCKUP_DETECTOR from OpenWrt.

Signed-off-by: Hauke Mehrtens <hmehrtens@maxlinear.com>
This commit is contained in:
Hauke Mehrtens 2023-03-08 21:31:20 +01:00 committed by Hauke Mehrtens
parent 0f5ba14791
commit b844716158
2 changed files with 13 additions and 0 deletions
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12
config/Config-kernel.in
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@ -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

1
target/linux/generic/config-5.15
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@ -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