lkml.org 
[lkml]   [2011]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: kernel 3.1.1 message: <IRQ> warn_alloc_failed
From
Date
On Tue, 2011-12-13 at 10:41 -0800, Stephen Hemminger wrote:
> On Tue, 13 Dec 2011 11:42:13 -0600
> Rajesh Borundia <rajesh.borundia@qlogic.com> wrote:
>
> > Hi All,
> >
> > Sorry for late reply.
> >
> > Stephan,
> > Thanks for analyzing.
> >
> > Yes, the netxen adapter does not support fragmented page memory.
> > They are not harmful messages. At that instant of time it may fail allocating
> > memory for some buffers in the ring but after enough memory is available
> > it will try to allocate memory for unallocated buffers in ring.
> >
> > Or the other option could be to turn LRO off.
[...]
> The driver should be changed to call allocation with __GFP_NOWARN.
> Change dev_alloc_skb(size) to
> __dev_alloc_skb(size, GFP_ATOMIC|__GFP_NOWARN)
>
> Or better yet, switch to using netdev_alloc variant like
> __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC|__GFP_NOWARN)

Why should this be done only in specific drivers?

Ben.

--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.



\
 
 \ /
  Last update: 2011-12-13 20:13    [W:0.219 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site