To: torvalds@transmeta.com From: davej@codemonkey.org.uk Subject: [PATCH] Double x86 initialise fix. For many moons, we've been executing identify_cpu() on the boot processor twice on SMP kernels. This is harmless, but has a few downsides.. - Extra cruft in bootlog/dmesg - Spawns one too many timers for the mcheck handler - possibly other wasteful things.. This seems to do the right thing here, and has been acked (after some minor squibbles) on l-k. diff -urpN --exclude-from=/home/davej/.exclude bk-linus/arch/i386/kernel/smpboot.c linux-2.5/arch/i386/kernel/smpboot.c --- bk-linus/arch/i386/kernel/smpboot.c 2002-10-20 20:21:24.000000000 -0100 +++ linux-2.5/arch/i386/kernel/smpboot.c 2002-10-25 15:39:26.000000000 -0100 @@ -118,7 +118,8 @@ static void __init smp_store_cpu_info(in struct cpuinfo_x86 *c = cpu_data + id; *c = boot_cpu_data; - identify_cpu(c); + if (id!=0) + identify_cpu(c); /* * Mask B, Pentium, but not Pentium MMX */