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增加支持hp & spk 自动切换
hc
2024-03-22
619f0f87159c5dbd2755b1b0a0eb35784be84e7a
[~luoshi/RK3588_XEN.git]
/
kernel
/
Documentation
/
admin-guide
/
clearing-warn-once.rst
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Clearing WARN_ONCE
------------------
WARN_ONCE / WARN_ON_ONCE / printk_once only emit a message once.
echo 1 > /sys/kernel/debug/clear_warn_once
clears the state and allows the warnings to print once again.
This can be useful after test suite runs to reproduce problems.