From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:59092 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752277AbdLLIY7 (ORCPT ); Tue, 12 Dec 2017 03:24:59 -0500 Date: Tue, 12 Dec 2017 09:25:06 +0100 From: Greg KH To: Alex Shi Cc: stable@vger.kernel.org, lkft-maintainers@lists.linaro.org, Russell King - ARM Linux Subject: Re: patches fix ftracetest hang on arm Message-ID: <20171212082506.GD22935@kroah.com> References: <34f17b45-99fd-e588-a3fb-89430e33ee1d@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <34f17b45-99fd-e588-a3fb-89430e33ee1d@linaro.org> Sender: stable-owner@vger.kernel.org List-ID: On Mon, Dec 11, 2017 at 11:04:05AM +0800, Alex Shi wrote: > Hi All, > > BUG if we attempt to return to userspace but the to-be-restored PSR > value keeps us in privileged mode (defeating an issue that ftracetest > found). > > Fixing patches are following, apply top down on LTS *v4.14/4.9/4.4* > They are tested by lkft and kernelci build/boot, no regression found. > > 8bafae202c82 ARM: BUG if jumping to usermode address in kernel mode > 3aaf33bebda8 ARM: avoid faulting on qemu Thanks for these, now queued up. greg k-h