Blame SOURCES/debrand-single-cpu.patch

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--- a/arch/x86/kernel/setup.c	2019-03-13 04:04:53.000000000 -0700
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+++ b/arch/x86/kernel/setup.c	2019-05-27 08:35:54.580595314 -0700
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@@ -900,7 +900,7 @@ static void rh_check_supported(void)
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 	if (((boot_cpu_data.x86_max_cores * smp_num_siblings) == 1) &&
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 	    !guest && is_kdump_kernel()) {
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 		pr_crit("Detected single cpu native boot.\n");
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-		pr_crit("Important:  In Red Hat Enterprise Linux 8, single threaded, single CPU 64-bit physical systems are unsupported by Red Hat. Please contact your Red Hat support representative for a list of certified and supported systems.");
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+		pr_crit("Important:  In CentOS Linux 8, single threaded, single CPU 64-bit physical systems are unsupported. Please see http://wiki.centos.org/FAQ for more information");
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 	}
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 	/*