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Commit 64ba4f23 authored by Rusty Russell's avatar Rusty Russell Committed by Linus Torvalds
Browse files

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: default avatarRusty Russell <rusty@rustcorp.com.au>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3bf48468

arch/x86/kernel/cpu/bugs.c

+0 −8
Original line number Diff line number Diff line
@@ -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