Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:45450 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751387AbdIUOt7 (ORCPT ); Thu, 21 Sep 2017 10:49:59 -0400 From: Kalle Valo To: Larry Finger Cc: Zwindl , "linux-wireless\@vger.kernel.org" , "chaoming_li\@realsil.com.cn" , "pkshih\@realtek.com" , "johannes.berg\@intel.com" , "gregkh\@linuxfoundation.org" , "netdev\@vger.kernel.org" , "linux-kernel\@vger.kernel.org" Subject: Re: RTL8192EE PCIe Wireless Network Adapter crashed with linux-4.13 References: <2WhCEttl4IJtrTB2AkJYmhbsu-kiR_5fU0A_Z7eWW05rbVE5tB86A_ZS8ek_FQFdgaZw1bfx0wFbxOa0Ydjv1T6BzBkIHtaWTbSptcpB_kg=@protonmail.com> <1eb67d2e-dfbc-a2d0-8949-d4336191c07b@lwfinger.net> <35856452-c05c-d116-f91b-0964947ec8ae@lwfinger.net> <2_UKRQjXR9_CXy_99R7fqRbs4VDG0hfFCMvvf4ll2BQV5C_zNiPTnHHNtoYstAGy_UF9X85pl4siU7fnXefmqbhlErxR6FqZQfIf0tADKNg=@protonmail.com> <5e2a695a-ea26-e0a3-d5eb-cf8135c1349e@lwfinger.net> <5a6aa431-fdde-a329-4168-44490c37f197@lwfinger.net> Date: Thu, 21 Sep 2017 17:49:50 +0300 In-Reply-To: <5a6aa431-fdde-a329-4168-44490c37f197@lwfinger.net> (Larry Finger's message of "Thu, 21 Sep 2017 09:21:25 -0500") Message-ID: <871sn09kdt.fsf@kamboji.qca.qualcomm.com> (sfid-20170921_165020_646634_AA736864) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: Larry Finger writes: > On 09/21/2017 06:37 AM, Zwindl wrote: >> Hi, I've reported to archlinux's bugzilla, and finally found out the >> flag which caused that issue, it's the >> `CONFIG_INTEL_IOMMU_DEFAULT_ON=y` flag, I think may this is a kernel >> bug, more details at https://bugs.archlinux.org/task/55665 > > My standard kernel has the following: > > CONFIG_INTEL_IOMMU=y > # CONFIG_INTEL_IOMMU_SVM is not set > # CONFIG_INTEL_IOMMU_DEFAULT_ON is not set > > I will do some further testing to see if turning > CONFIG_INTEL_IOMMU_DEFAULT_ON also breaks my system. But not all systems have iommu so check from dmesg that iommu is really enabled. -- Kalle Valo