Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten

Christoph Lameter
2008-07-21T16:23:19Z

Evgeniy Polyakov wrote:
> Not that obvious...
> skb->next is cleared in lots of places, in xmit network helper
> for example, but since rest of the packet was not modified, it
> means given skb was not freed, so it will not help.
>
>

The skb was definitely freed. 6b is written over an object when it is
freed. Something else retained a pointer to the skb and was confident
that the skb still exists.