Trying to understand alloc_skb()

Eugene Surovegin ebs at
Wed Apr 13 02:12:31 EST 2005

On Tue, Apr 12, 2005 at 05:38:01PM +0900, Daniel Ann wrote:
> My problem is that, kernel dies with "alloc_skb called nonatomically
> from interrupt c00ba718" message. After browsing mailing list, I think
> its to do with not providing it with enough locks prior.
> Question is, what kind of lock should I be providing ?

You don't need any locks, just pass correct gfp_mask parameter to 
alloc_skb when it's called from IRQ context, e.g. GFP_ATOMIC.


More information about the Linuxppc-embedded mailing list