From: Eugene Surovegin <ebs@ebshome.net>
To: Daniel Ann <ktdann@gmail.com>
Cc: linuxppc-embedded <linuxppc-embedded@ozlabs.org>
Subject: Re: Trying to understand alloc_skb()
Date: Tue, 12 Apr 2005 09:12:31 -0700 [thread overview]
Message-ID: <20050412161230.GA18567@gate.ebshome.net> (raw)
In-Reply-To: <9b7ca6570504120138738b554f@mail.gmail.com>
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.
--
Eugene
next prev parent reply other threads:[~2005-04-12 16:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-12 8:38 Trying to understand alloc_skb() Daniel Ann
2005-04-12 8:49 ` Daniel Ann
2005-04-12 12:24 ` John W. Linville
2005-04-12 13:05 ` Daniel Ann
2005-04-12 13:51 ` John W. Linville
2005-04-13 4:40 ` Daniel Ann
2005-04-12 16:12 ` Eugene Surovegin [this message]
2005-04-13 4:50 ` Daniel Ann
2005-04-13 5:13 ` Eugene Surovegin
2005-04-13 12:32 ` Daniel Ann
2005-04-14 12:36 ` Daniel Ann
2005-04-13 6:05 ` Donald White
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