From 64ba4f230d30b089bc89db2e59d02c1efa5ac769 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Sun, 6 Apr 2008 17:23:38 +1000 Subject: [PATCH] Fix booting pentium+ with dodgy TSC We handle a broken tsc these days, so no need to panic. We clear the TSC bit when tsc_init decides it's unreliable (eg. under lguest w/ bad host TSC), leading to bogus panic. Signed-off-by: Rusty Russell Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds --- arch/x86/kernel/cpu/bugs.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 027e5c003b1..170d2f5523b 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -142,14 +142,6 @@ static void __init check_config(void) panic("Kernel requires i486+ for 'invlpg' and other features"); #endif -/* - * If we configured ourselves for a TSC, we'd better have one! - */ -#ifdef CONFIG_X86_TSC - if (!cpu_has_tsc) - panic("Kernel compiled for Pentium+, requires TSC feature!"); -#endif - /* * If we were told we had a good local APIC, check for buggy Pentia, * i.e. all B steppings and the C2 stepping of P54C when using their -- 2.41.1