From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751922AbaIFR0B (ORCPT ); Sat, 6 Sep 2014 13:26:01 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:47333 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751371AbaIFRZ7 (ORCPT ); Sat, 6 Sep 2014 13:25:59 -0400 Message-ID: <540B439C.8070204@roeck-us.net> Date: Sat, 06 Sep 2014 10:25:48 -0700 From: Guenter Roeck User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Xuetao Guan CC: linux-kernel@vger.kernel.org, Guan Xuetao , Chen Gang , Grant Likely Subject: Re: =?UTF-8?B?5Zue5aSN77yaIFJlOiDlm57lpI3vvJogUmU6IOWbnuWkje+8miA=?= =?UTF-8?B?UmU6IOWbnuWkje+8miBTdGF0dXMgb2YgJ3VuaWNvcmUzMicgYXJjaGl0ZWN0dXI=?= =?UTF-8?B?ZSBpbiBMaW51eCBrZXJuZWw=?= References: <501661250.62198.1409897580592.JavaMail.root@bj-mail03.pku.edu.cn> In-Reply-To: <501661250.62198.1409897580592.JavaMail.root@bj-mail03.pku.edu.cn> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020201.540B43A7.004A,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-Score: 0.000 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 4 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/04/2014 11:13 PM, Xuetao Guan wrote: > > ----- Guenter Roeck 写道： >> On 09/03/2014 01:32 AM, Xuetao Guan wrote: >>> >> [ ... ] >> >>>> Please try the following patch. That seems to do it. >>>> I am sure it can be improved, but it is a start. >>>> >>>> Thanks, >>>> Guenter >>> >>> Thanks. I'll test it. >>> BTW, Qemu codestyle is different, and tab should be replaced with blanks. >>> >> >> Here is where I am. User space code (busybox) was compiled >> using the unicore toolchain available on the web. >> >> ... >> serio: i8042 KBD port at 0x6eb00060,0x6eb00064 irq 22 >> mousedev: PS/2 mouse device common for all mice >> Enable UniCore-F64 support. >> Warning: unable to open an initial console. >> Freeing unused kernel memory: 1156K (c0408000 - c0529000) >> >> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >> >> ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >> >> The kernel tries to execute the init program, which fails with SIGSEGV. >> I confirmed that the init program is loaded and starts to execute. >> >> Any idea what might cause such a problem ? >> >> Thanks, >> Guenter >> > 'slink /init /bin/busybox 777 0 0' should be inserted in initramfs config > Also, I recommend compile busybox statically for initramfs. > > I need more information, including full kmsg and initramfs configs > Hi, I made everything I have available at http://server.roeck-us.net/qemu/unicore32/. I tried multiple variants for creating the root file system, including the one on https://github.com/gxt/UniCore32.git and the one using mkrootfs.sh in the link above. No difference - I always see the same crash. Note that the 'init' program is loading, but crashes with above error (0x0000000b is SIGSEGV unless I am missing something). Note that I used the latest qemu for unicore from upstream sources; I was unable to compile it from git@github.com:gxt/QEMU.git. Qemu configuration did not seem to make a difference. The toolchain was extracted from uc4-1.0.5-hard.tgz. Hope this helps, Guenter