From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yves-Alexis Perez Subject: Re: Page allocation failure (order 7) in UAS code Date: Tue, 01 Mar 2016 12:20:43 +0100 Message-ID: <1456831243.3303.0.camel@corsac.net> References: <1456825361.17330.9.camel@corsac.net> <56D573CF.1000600@redhat.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-ZrNX1z3i7uxmVe3YoVEQ" Return-path: Received: from pic75-3-78-194-244-226.fbxo.proxad.net ([78.194.244.226]:36958 "EHLO molly.corsac.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752995AbcCALUv (ORCPT ); Tue, 1 Mar 2016 06:20:51 -0500 Received: from corsac.net (unknown [IPv6:2a01:e34:ec2f:4e21::2]) by molly.corsac.net (Postfix) with ESMTPS id 43BF278 for ; Tue, 1 Mar 2016 12:20:47 +0100 (CET) In-Reply-To: <56D573CF.1000600@redhat.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Hans de Goede , Gerd Hoffmann Cc: linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org --=-ZrNX1z3i7uxmVe3YoVEQ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On mar., 2016-03-01 at 11:49 +0100, Hans de Goede wrote: > Can you try building a kernel with the following line in > drivers/usb/storage/uas.c : >=20 > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 .can_queue =3D 65536,=C2= =A0=C2=A0=C2=A0=C2=A0 /* Is there a limit on the _host_ ? */ >=20 > (around line 815) Replaced with >=20 > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 .can_queue =3D MAX_CMNDS= , >=20 > That should help as MAX_CMNDS is 256, so claiming that we can queue more > is not helpful, and that likely is what is causing this quite high order > alloc. Hi, I've rebuilt a 4.4.3 + above patch. I'll report back in few hours to see if= I can still reproduce. Regards, --=20 Yves-Alexis --=-ZrNX1z3i7uxmVe3YoVEQ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJW1XsLAAoJEG3bU/KmdcCloyQH/2RrTdWv8y2ebgqh749OXUAM PIc1TRHk5+BBEdJhCpzn3DqQc5h41BmVG5c5rJRp5UiPhUHZA4O8HAu/5bvxH/Fh jUgcdMlEU5KoIAepiBpF97RA/yp9qpSBiPJdwk1rnZR8WdFvjgUyf8wapxT761h/ IcMSdbPTHxcoVAIPmojS5TNo+bpA0FvX4FN6yeK4WuREeXlz7Ra2DOMqa+0ma5M5 je/Tp2zV800xqVKd8R7+shYBBrY9KcEXhlcLr3bb/+j4VblRu6Ep7vR14tR9WwT4 G0Xq8KOvJ5/SAhnXK5b9ect9UdKVHE1IBocOEZdsbm698rvAYXS5xcEi4N28/HA= =qCPX -----END PGP SIGNATURE----- --=-ZrNX1z3i7uxmVe3YoVEQ--