From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEAA9C433E0 for ; Thu, 4 Jun 2020 06:38:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 839152077D for ; Thu, 4 Jun 2020 06:38:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="QyWFRI+6"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="JfERwxMX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 839152077D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ftULUUwmyL27Av1wXWgv0mXb8VYInUqmWbMn1FCaG3E=; b=QyWFRI+6HKhI8l +C9Bnuj1kwEkIc5rSPYc+aBvwU3Pmru/8xfSM25eBRl7XVDNvIG/Guf4rondjqeraEuRluI3OHpOS zLpZ4z35Fs7TeBJHpVMLIulBuPUfxDjgfSSa+tQiHkDSBgoDnrjPT6sgk49JCMZJbnszzfrpyCnpv 7uLUrdc6aYe6s5oDtPFP8q4+G9DhiE5ypcghKxPLg+NvnnwP5eXVZv3iKtEfzEB7iFEdL4qVTGKJ8 HS1pla1JvihKFD/Wz81gII4R9kXsFcWO5a44HtbJvPWu7iabGHnF6uDBlwVsjE0rdXwSjXM3CmzHU wn9BXr+DRG27HIxqI68Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgjVt-00068b-B2; Thu, 04 Jun 2020 06:38:05 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgjVl-00061i-Kx; Thu, 04 Jun 2020 06:37:59 +0000 Received: from kernel.org (unknown [87.71.78.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EE6B9206C3; Thu, 4 Jun 2020 06:37:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591252677; bh=O1a535rP16XFYofg4bMZWQkFl2JLEEYgVYDf/xPj9AA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JfERwxMXEu2kI9XoIT9dWNXO1rREUwNy4knLypfsDDn3RoK04PQ+VcJ9cU4AiLvZ9 zgKMGrd4au2WatdA8yMk1LlH6XWepwggHO+6JEHEW8/tg+Uifk/2Ah/6wTBJLxUsMO hIlar1DcvGQ6J2i69MlWxGfbGkXBQIZ5oY21iu3Y= Date: Thu, 4 Jun 2020 09:37:45 +0300 From: Mike Rapoport To: Ira Weiny Subject: Re: [PATCH] arch/{mips,sparc,microblaze,powerpc}: Don't enable pagefault/preempt twice Message-ID: <20200604063745.GB202650@kernel.org> References: <20200519165422.GA5838@roeck-us.net> <20200519184031.GB3356843@iweiny-DESK2.sc.intel.com> <20200519194215.GA71941@roeck-us.net> <20200520051315.GA3660833@iweiny-DESK2.sc.intel.com> <20200521174250.GB176262@iweiny-DESK2.sc.intel.com> <20200603135736.e7b5ded0082a81ae6d9067a0@linux-foundation.org> <20200603211416.GA1740285@iweiny-DESK2.sc.intel.com> <3538c8ad-674e-d310-d870-4ef6888092ed@roeck-us.net> <20200604062226.GA1740345@iweiny-DESK2.sc.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200604062226.GA1740345@iweiny-DESK2.sc.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200603_233757_711073_74170BF9 X-CRM114-Status: GOOD ( 10.33 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org, "James E.J. Bottomley" , Max Filippov , Paul Mackerras , "H. Peter Anvin" , sparclinux@vger.kernel.org, Dan Williams , Helge Deller , x86@kernel.org, linux-csky@vger.kernel.org, Christoph Hellwig , Ingo Molnar , linux-snps-arc@lists.infradead.org, Guenter Roeck , linux-xtensa@linux-xtensa.org, Borislav Petkov , Al Viro , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Chris Zankel , Thomas Bogendoerfer , linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, Christian Koenig , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Wed, Jun 03, 2020 at 11:22:26PM -0700, Ira Weiny wrote: > On Wed, Jun 03, 2020 at 04:44:17PM -0700, Guenter Roeck wrote: > > With linux-next on sparc I too see the spinlock issue; something like: > > ... > Starting syslogd: BUG: spinlock recursion on CPU#0, S01syslogd/139 > lock: 0xf53ef350, .magic: dead4ead, .owner: S01syslogd/139, .owner_cpu: 0 > CPU: 0 PID: 139 Comm: S01syslogd Not tainted 5.7.0-next-20200603 #1 > [f0067d00 : > do_raw_spin_lock+0xa8/0xd8 ] > [f00d598c : > copy_page_range+0x328/0x804 ] > [f0025c34 : > dup_mm+0x334/0x434 ] > [f0027198 : > copy_process+0x1248/0x12d4 ] > [f00273b8 : > _do_fork+0x54/0x30c ] > [f00276e4 : > do_fork+0x5c/0x6c ] > [f000de44 : > sparc_do_fork+0x18/0x38 ] > [f000b7f4 : > do_syscall+0x34/0x40 ] > [5010cd4c : > 0x5010cd4c ] > > > I'm going to bisect between there and HEAD. The sparc issue should be fixed by https://lore.kernel.org/lkml/20200526173302.377-1-will@kernel.org > Ira -- Sincerely yours, Mike. _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc