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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 <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rusty Russell 2008-04-06 17:23:38 +10:00 committed by Linus Torvalds
parent 3bf48468fe
commit 64ba4f230d
1 changed files with 0 additions and 8 deletions
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8
arch/x86/kernel/cpu/bugs.c
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@ -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