From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Berg Subject: Re: Regression since 2.6.30-rc1 - Page allocation failures Date: Thu, 30 Apr 2009 01:39:02 +0200 Message-ID: <1241048343.25477.7.camel@johannes.local> References: <49F8C03D.6040909@lwfinger.net> (sfid-20090429_230225_847074_E5413886) <1241039372.4547.3.camel@johannes.local> (sfid-20090429_231009_993152_4FF82E4D) <1241040451.5067.0.camel@johannes.local> <49F8E145.1050708@lwfinger.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-kyK/pAUYx0XbStFT5uCy" Cc: wireless , netdev To: Larry Finger Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:42179 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751465AbZD2Xjc (ORCPT ); Wed, 29 Apr 2009 19:39:32 -0400 In-Reply-To: <49F8E145.1050708@lwfinger.net> Sender: netdev-owner@vger.kernel.org List-ID: --=-kyK/pAUYx0XbStFT5uCy Content-Type: text/plain Content-Transfer-Encoding: quoted-printable (dropped lkml, added netdev) > I get the "failed to reallocate TX buffer" message. Not all are related t= o the > page allocation failure. I am also getting "b43-phy0 debug: DMA RX: > setup_rx_descbuffer() failed" messages. >=20 > So far, the numbers printed by the revised printk are: >=20 > kernel: phy0: failed to reallocate TX buffer 0, 404, need 0, 0 > kernel: protocol 0008 is buggy, dev eth1 >=20 > kernel: phy0: failed to reallocate TX buffer 0, 1728, need 0, 18 >=20 > Device eth1 is the b43 wireless device. Thanks. This is a little odd -- I don't see why pskb_expand_head(skb, 0, 0) or pskb_expand_head(skb, 0, 18) would try to do an order 1 allocation when skb->len is 404 or 1728. It looks like something is forcing larger alignments than should be necessary, but I have no idea what. (for netdev: http://mid.gmane.org/49F8C03D.6040909@lwfinger.net has more information) johannes --=-kyK/pAUYx0XbStFT5uCy Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJJ+OUTAAoJEKVg1VMiehFY+ikP/2wAY9DzRMAxVjO6OvaAI4z9 uoGlLITnQ4d+cgZh3C6cJ/fR2nQxpCO1EuvEaIySHBFIGQXo4zoiuDIroXjqPqtf NGfXDlRyEzGcCI7eSJmcEP+euc3II1whEOOaX71Ht8eFk2HG/Genyiv8YJJWT475 Q2Ynjhhl7mWYxpa3AJCavtb9DDP7JT8wfF1ENCySHGKa75+VRF7ED9O/VfBYeLxr EBBcoapmXrfKs3vp2Z431XifMthbsf++HckMwTIK24ZWlxGxnF/bNtYP5264d2xT uMZUl8UpeksuvrdZ5f+Hs3+MK41Hxn1KbaWGovftd3yy6c5emt/bATE1CJBYTAeV wVmtW/mcyQQBz88w3ZmWGgBbfkc/OBWQdURcKzpnrBwONjuSasLf9Np7/EBSp24F BgDRiVcYQGcnOHCF9kYE9YlaHEiR3v6uiRJx7kDAyEq8V3RT0tVKX+jj5xx/r+7U 7mE0F8sLwEJQNnyGPiVf4IyJjMO6c+bWeqWu3Ms3VSPvHxAetZRgcUWy8/L/L5J/ KQeQz7vD1TYJXSJrwoLr8XluqL/e7uq/68ynZbEGwyTrEfAXQIHRQkk2VQZkmF/W YHBOaPxAocbNvgihhf+2TePFOr3FHzX/W0r62xuzULpc7I5XYWV624wKx8MmLSWc Dbn6pHP0GsfFFJnDom6f =1LYg -----END PGP SIGNATURE----- --=-kyK/pAUYx0XbStFT5uCy--