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Date: Sat, 14 Jun 2008 22:36:02 +0100 From: Ben Hutchings <bhutchings@...arflare.com> To: Denys Fedoryshchenko <denys@...p.net.lb> Cc: Evgeniy Polyakov <johnpol@....mipt.ru>, netdev@...r.kernel.org Subject: Re: page allocation failure Denys Fedoryshchenko wrote: > There is no jumbo frames in this particular setup. > Probably it is getting out of memory (rtorrent using almost all for fs caching > maybe). [...] The "order: 3" means an allocation of 8 pages (32 KB) at once, which should not be needed for receiving standard Ethernet frames. Looking at the bnx2 code I can't see any case in which it would allocate an skb much larger than the MTU. Network drivers usually try to refill the hardware RX ring immediately after handling RX completions, at which point they are running in atomic (non-blocking) context and large contiguous memory allocations are relatively likely to fail even if the system has plenty of memory. Ben. -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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