Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752824AbbHEQ4c (ORCPT ); Wed, 5 Aug 2015 12:56:32 -0400 Received: from bastet.se.axis.com ([195.60.68.11]:42073 "EHLO bastet.se.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752156AbbHEQ4a (ORCPT ); Wed, 5 Aug 2015 12:56:30 -0400 Date: Wed, 5 Aug 2015 18:56:27 +0200 Message-Id: <201508051656.t75GuRWq016534@ignucius.se.axis.com> From: Hans-Peter Nilsson To: xili_gchen_5257@hotmail.com CC: jespern@axis.com, starvik@axis.com, linux-kernel@vger.kernel.org, linux-cris-kernel@axis.com In-reply-to: (message from Chen Gang on Wed, 5 Aug 2015 16:39:00 +0200) Subject: Re: [Consult] cris: arch-v10: About $dtp0 register 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: 2116 Lines: 52 > From: Chen Gang > Date: Wed, 5 Aug 2015 16:39:00 +0200 > On 8/5/15 12:32, Hans-Peter Nilsson wrote: > >> From: Chen Gang > >> Date: Mon, 20 Jul 2015 23:32:52 +0200 > > > >> On 7/9/15 08:44, Chen Gang wrote: > >> The latest upstream cris gcc will cause issue for next-20150720 with > >> allmodconfig (although it can let next-20150702 pass allmodconfig): > >> > >> CC [M] kernel/rcu/rcutorture.o > > [...] > >> include/linux/rcutiny.h:55:20: internal compiler error: Segmentation fault > >> static inline void rcu_barrier_sched(void) > >> ^ > >> 0xad879f crash_signal > >> ../../gcc/gcc/toplev.c:352 > >> 0xbf0fb8 tree_check(tree_node*, char const*, int, char const*, tree_code) > >> ../../gcc/gcc/tree.h:2857 > >> 0xbf0fb8 fold_builtin_alloca_with_align > >> ../../gcc/gcc/tree-ssa-ccp.c:2110 > > [...] > > > >> If no any additional response, I shall try to fix it in the next month. > > > > No need to enter a new bug report, this appears to be > > . It is also observed for other > > ports, at least with the original C++ test-case there. I added > > a reduced rcutorture.c to the bug-report. Thanks. > > > > OK, thanks. :-) > > And next, I shall try to cross compile kernel for another archs, hope I > can start in 2015-08-15 -- during these days I am trying tilegx qemu for > gcc testsuite (mainly for floating point insns and pending issues). (Hopefully on-topic as the bug is likely to appear for multiple targets:) Or pick up any gcc-6.0 snapshot later than or equal to r226616, as a fix is now committed. I just verified that the fix covers the original and reduced kernel test-cases. The fix is not on the 5.x branch yet but I believe it is likely to be back-ported in time for 5.3. brgds, H-P -- 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/