hardlockup_all_cpu_backtrace

file: /proc/sys/kernel/hardlockup_all_cpu_backtrace
variable: kernel.hardlockup_all_cpu_backtrace
Official reference

This value controls the hard lockup detector behavior when a hard lockup condition is detected as to whether or not to gather further debug information. If enabled, arch-specific all-CPU stack dumping will be initiated.

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0 Do nothing. This is the default behavior.
1 On detection capture more debug information.
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