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Date: Sun, 30 Aug 2009 14:37:42 +0200 From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> To: Zhu Yi <yi.zhu@...el.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, Mel Gorman <mel@....ul.ie>, Johannes Weiner <hannes@...xchg.org>, Pekka Enberg <penberg@...helsinki.fi>, "Rafael J. Wysocki" <rjw@...k.pl>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Kernel Testers List <kernel-testers@...r.kernel.org>, Mel Gorman <mel@...net.ie>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, James Ketrenos <jketreno@...ux.intel.com>, "Chatre, Reinette" <reinette.chatre@...el.com>, "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>, "ipw2100-devel@...ts.sourceforge.net" <ipw2100-devel@...ts.sourceforge.net> Subject: Re: ipw2200: firmware DMA loading rework On Friday 28 August 2009 05:42:31 Zhu Yi wrote: > Bartlomiej Zolnierkiewicz reported an atomic order-6 allocation failure > for ipw2200 firmware loading in kernel 2.6.30. High order allocation is s/2.6.30/2.6.31-rc6/ The issue has always been there but it was some recent change that explicitly triggered the allocation failures (after 2.6.31-rc1). > likely to fail and should always be avoided. > > The patch fixes this problem by replacing the original order-6 > pci_alloc_consistent() with an array of order-1 pages from a pci pool. > This utilized the ipw2200 DMA command blocks (up to 64 slots). The > maximum firmware size support remains the same (64*8K). > > This patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14016 > > Cc: Andrew Morton <akpm@...ux-foundation.org> > Cc: Mel Gorman <mel@....ul.ie> > Signed-off-by: Zhu Yi <yi.zhu@...el.com> Thanks for the fix (also kudos to other people helping with the bugreport), it works fine so far and looks OK to me: Tested-and-reviewed-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> -- 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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