[PATCH] x86_64: Fix race in TSC synchronization

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Plug a race in TSC synchronization

We need to do tsc_sync_wait() before the CPU is set online to prevent
multiple CPUs from doing it in parallel - which won't work because TSC
sync has global unprotected state.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Andi Kleen 2005-08-19 06:56:40 +02:00 • committed by Linus Torvalds

parent 5e5ec10499

commit 1eecd73cce

1 changed files with 8 additions and 7 deletions

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arch/x86_64/kernel/smpboot.c

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