--- zzzz-none-000/linux-5.15.111/arch/x86/kernel/alternative.c	2023-05-11 14:00:40.000000000 +0000
+++ puma7-atom-6670-761/linux-5.15.111/arch/x86/kernel/alternative.c	2024-02-07 10:22:35.000000000 +0000
@@ -1011,17 +1011,28 @@
 	return temp_state;
 }
 
+
+#ifndef CONFIG_HW_BREAKPOINTS
+DEFINE_PER_CPU(unsigned long, cpu_dr7);
+EXPORT_PER_CPU_SYMBOL(cpu_dr7);
+#endif
+
 static inline void unuse_temporary_mm(temp_mm_state_t prev_state)
 {
 	lockdep_assert_irqs_disabled();
 	switch_mm_irqs_off(NULL, prev_state.mm, current);
 
+#ifdef CONFIG_HW_BREAKPOINTS
 	/*
 	 * Restore the breakpoints if they were disabled before the temporary mm
 	 * was loaded.
 	 */
 	if (hw_breakpoint_active())
 		hw_breakpoint_restore();
+#else
+	set_debugreg(__this_cpu_read(cpu_dr7), 7);
+#endif
+
 }
 
 __ro_after_init struct mm_struct *poking_mm;