Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755766AbZDTNct (ORCPT ); Mon, 20 Apr 2009 09:32:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755389AbZDTNck (ORCPT ); Mon, 20 Apr 2009 09:32:40 -0400 Received: from yw-out-2122.google.com ([74.125.46.25]:34871 "EHLO yw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753548AbZDTNcj (ORCPT ); Mon, 20 Apr 2009 09:32:39 -0400 MIME-Version: 1.0 Date: Mon, 20 Apr 2009 06:32:37 -0700 (PDT) In-Reply-To: X-IP: 47.129.73.78 References: User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008110510 msie/6.0 Firefox/3.0.4,gzip(gfe),gzip(gfe) Message-ID: <95753bcf-0944-4766-a882-bdccb46dded2@v15g2000yqn.googlegroups.com> Subject: Re: [Announce] 2.6.29.1-rt8 From: Stephane Couture To: Thomas Gleixner Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2542 Lines: 78 With PREEMPT_RT and HIGHMEM on ppc32 (8572ds eval board), there is a lot of coredumps (data access, 0x300) very early in the boot process. There is no problem when using only one of PREEMPT_RT or HIGHMEM. I also tried rt1 and rt7 and it's the same behavior. Ccing linuxppc-dev in case someone already tried this configuration. backtrace and registers dump: (no debugging symbols found) (no debugging symbols found) Core was generated by `sed s/\/.*//'. Program terminated with signal 11, Segmentation fault. [New process 2189] #0 0x10089fa8 in ?? () (gdb) bt #0 0x10089fa8 in ?? () #1 0x10089f90 in ?? () #2 0x1006975c in ?? () #3 0x1005ceec in ?? () #4 0x1005d190 in ?? () #5 0x1005dd64 in ?? () #6 0x10000560 in ?? () #7 0x10000590 in ?? () #8 0x10000888 in ?? () #9 0x1009894c in ?? () #10 0x00000000 in ?? () (gdb) info register r0 0x1 1 r1 0xbfc609e0 3217426912 r2 0x0 0 r3 0xd 13 r4 0x1009a0bc 269066428 r5 0x20082044 537403460 r6 0xd 13 r7 0x1007ccd4 268946644 r8 0x2d000 184320 r9 0x0 0 r10 0x0 0 r11 0xeee1df40 4007780160 r12 0xeee1c000 4007772160 r13 0x100cf11c 269283612 r14 0xbfd9cdb0 3218722224 r15 0xbfd9cda0 3218722208 r16 0x0 0 r17 0x0 0 r18 0x100aa854 269133908 r19 0x100a3aed 269105901 r20 0x0 0 r21 0x100d61ac 269312428 r22 0xbfd9c1c8 3218719176 r23 0x10000824 268437540 r24 0x0 0 r25 0xbfc60a38 3217427000 r26 0x0 0 r27 0x0 0 r28 0x0 0 r29 0x100c69a8 269248936 r30 0x100c7110 269250832 r31 0x100c69a8 269248936 pc 0x10089fa8 0x10089fa8 msr 0x2d900 186624 cr 0x40082044 1074274372 lr 0x10089f90 0x10089f90 ctr 0xc00feff0 3222269936 xer 0x20000000 536870912 orig_r3 0x0 0 trap 0x300 768 Thanks. -- 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/