Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751427Ab3JAGBf (ORCPT ); Tue, 1 Oct 2013 02:01:35 -0400 Received: from mfo10.iij4u.or.jp ([210.138.174.80]:50245 "EHLO mfo.iij4u.or.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751008Ab3JAGBe (ORCPT ); Tue, 1 Oct 2013 02:01:34 -0400 X-Greylist: delayed 2200 seconds by postgrey-1.27 at vger.kernel.org; Tue, 01 Oct 2013 02:01:34 EDT Date: Tue, 1 Oct 2013 14:24:21 +0900 From: Yoichi Yuasa To: Aaro Koskinen Cc: yuasa@linux-mips.org, Linus Torvalds , Ralf Baechle , linux-mips@linux-mips.org, Linux Kernel Mailing List Subject: Re: Linux 3.12-rc2 - MIPS regression Message-Id: <20131001142421.6cd0870138caf2fe5600a1ea@linux-mips.org> In-Reply-To: <20130927231012.GB4572@blackmetal.musicnaut.iki.fi> References: <20130927231012.GB4572@blackmetal.musicnaut.iki.fi> X-Mailer: Sylpheed 3.2.0beta5 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1349 Lines: 42 Hi, On Sat, 28 Sep 2013 02:10:12 +0300 Aaro Koskinen wrote: > Hi, > > 3.12-rc2 breaks the boot (BUG: scheduling while atomic, see logs below) > on Lemote Mini-PC (MIPS). According to git bisect, this is caused by: > > ff522058bd717506b2fa066fa564657f2b86477e is the first bad commit > commit ff522058bd717506b2fa066fa564657f2b86477e > Author: Ralf Baechle > Date: Tue Sep 17 12:44:31 2013 +0200 > > MIPS: Fix accessing to per-cpu data when flushing the cache > > Reverting the commit from v3.12-rc2 makes the board boot fine. Please try this patch on top of rc2. MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches Signed-off-by: Yoichi Yuasa diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 627883b..2492e60 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -609,6 +609,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) r4k_blast_scache(); else blast_scache_range(addr, addr + size); + preempt_enable(); __sync(); return; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/