Re: [Bugme-new] [Bug 33502] New: Caught 64-bit read from uninitialized memory in __alloc_skb

Christoph Lameter
2011-04-19T17:10:45Z

On Tue, 19 Apr 2011, Eric Dumazet wrote:

> }
> }
>
> -#ifdef CONFIG_CMPXCHG_LOCAL
> +#if defined(CONFIG_CMPXCHG_LOCAL) && \
> + !defined(CONFIG_KMEMCHECK) && !defined(DEBUG_PAGEALLOC)
> +#define SLUB_USE_CMPXCHG_DOUBLE
> +#endif
> +
> +#ifdef SLUB_USE_CMPXCHG_DOUBLE
> #ifdef CONFIG_PREEMPT
> /*

Ugg.. Isnt there some way to indicate to kmemcheck that a speculative
access is occurring?