Return-path: Received: from pandora.armlinux.org.uk ([78.32.30.218]:36280 "EHLO pandora.armlinux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756613AbcKWVRx (ORCPT ); Wed, 23 Nov 2016 16:17:53 -0500 Date: Wed, 23 Nov 2016 21:17:45 +0000 From: Russell King - ARM Linux To: Jason Cooper Cc: linux-wireless@vger.kernel.org, Linux ARM Kernel , ath9k-devel@qca.qualcomm.com, ath9k-devel@lists.ath9k.org, Thomas Petazzoni , Gregory CLEMENT , Kalle Valo , Andrew Lunn Subject: Re: ath9k ARMv7 OOPS in v4.8.6, v4.2.8 Message-ID: <20161123211745.GF14217@n2100.armlinux.org.uk> (sfid-20161123_221758_592037_4D273EDE) References: <20161123191539.GF2799@io.lakedaemon.net> <20161123195120.GE14217@n2100.armlinux.org.uk> <20161123205917.GI2799@io.lakedaemon.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20161123205917.GI2799@io.lakedaemon.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, Nov 23, 2016 at 08:59:17PM +0000, Jason Cooper wrote: > As requested on irc: Thanks. > 7f0: ea000002 b 800 > 7f4: e7970102 ldr r0, [r7, r2, lsl #2] > 7f8: ebfffffe bl 0 > 7fc: e0844000 add r4, r4, r0 > 800: e300a000 movw sl, #0 > 804: e28b2001 add r2, fp, #1 > 808: e340a000 movt sl, #0 > 80c: e3a01004 mov r1, #4 > 810: e1a0000a mov r0, sl > 814: ebfffffe bl 0 <_find_next_bit_le> > 818: e5953000 ldr r3, [r5] > 81c: e1500003 cmp r0, r3 > 820: e1a0b000 mov fp, r0 > 824: e2802008 add r2, r0, #8 > 828: bafffff1 blt 7f4 Okay, so i was 0, so running UP probably isn't going to help. r7 is also spec_priv->rfs_chan_spec_scan. So, I think the question is... how is this NULL - and has it always been NULL... -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.