default or selected kernelversion does not have config value CONFIG_HAVE_RELIABLE_STACKTRACE.
Result is shown for kernelversion 6.9-rc5

CONFIG_HAVE_RELIABLE_STACKTRACE (not configurable)

configname: CONFIG_HAVE_RELIABLE_STACKTRACE

Linux Kernel Configuration
└─>General architecture-dependent options
└─>HAVE_RELIABLE_STACKTRACE
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Architecture has either save_stack_trace_tsk_reliable() or
arch_stack_walk_reliable() function which only returns a stack trace
if it can guarantee the trace is reliable.