From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752709Ab3FZRZr (ORCPT ); Wed, 26 Jun 2013 13:25:47 -0400 Received: from mailrelay.tu-graz.ac.at ([129.27.2.202]:41477 "EHLO mailrelay.tugraz.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751841Ab3FZRZq (ORCPT ); Wed, 26 Jun 2013 13:25:46 -0400 X-Greylist: delayed 1928 seconds by postgrey-1.27 at vger.kernel.org; Wed, 26 Jun 2013 13:25:45 EDT Message-ID: <51CB1C8B.1050701@htu.tugraz.at> Date: Wed, 26 Jun 2013 18:53:31 +0200 From: Michael Gissing User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130510 Thunderbird/17.0.6 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: NULL pointer dereference in ext4_superblock_csum_set Content-Type: multipart/mixed; boundary="------------010209090500090807080800" X-TUG-Backscatter-control: /E/VAccUv8Q3OmKEgerpxA X-Spam-Scanner: SpamAssassin 3.003000 X-Spam-Score-relay: 0.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------010209090500090807080800 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, tl,dr; I have a sd card which I suspect to have a corrupted fs. When I insert the card into my laptop's reader, I get the following: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] ext4_superblock_csum_set+0x4d/0xd0 Long story: It seems like i got a corrupted SD card when running one of my Raspberry pis in turbo mode. I wanted to check the card on my laptop, I got a kernel error. (please find it in the attached .txt) The installed system is Linux Mint 14 Nadia (the one based on Ubuntu 12.10) uname -a: Linux x200t 3.5.0-34-generic #55-Ubuntu SMP Thu Jun 6 20:18:19 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Cinnamon gives me a popup too: Error mounting /dev/sdb2 at /media/michael/41cd5baa-7a62-4706-b8e8-02c43ccee8d9: Command-line `mount -t "ext4" -o "uhelper=udisks2,nodev,nosuid" "/dev/sdb2" "/media/michael/41cd5baa-7a62-4706-b8e8-02c43ccee8d9"' was signaled with signal SIGKILL (9): I couldn't reproduce the error, something must have changed the sd card. I've created a dd image of the card, but I did it after the error occured. I haven't tried whether the image causes the error yet, I need the card at the moment. Is this something you want to look into? If so, let me know, I'll try to help. Please CC me as I'm not subscribed to the list. Michael --------------010209090500090807080800 Content-Type: text/plain; charset=UTF-8; name="linux_kernel_null_pointer_ext4.txt" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="linux_kernel_null_pointer_ext4.txt" WzMyOTk5Ljc4MDA1MV0gdXNiIDItNjogbmV3IGhpZ2gtc3BlZWQgVVNCIGRldmljZSBudW1i ZXIgNCB1c2luZyBlaGNpX2hjZApbMzI5OTkuOTIyMjU1XSB1c2IgMi02OiBOZXcgVVNCIGRl dmljZSBmb3VuZCwgaWRWZW5kb3I9MDVjYSwgaWRQcm9kdWN0PTE4ODAKWzMyOTk5LjkyMjI2 MV0gdXNiIDItNjogTmV3IFVTQiBkZXZpY2Ugc3RyaW5nczogTWZyPTEsIFByb2R1Y3Q9Miwg U2VyaWFsTnVtYmVyPTMKWzMyOTk5LjkyMjI2NV0gdXNiIDItNjogUHJvZHVjdDogVVNCMi4w LUZMQVNIIE1lZGlhICAgIApbMzI5OTkuOTIyMjY4XSB1c2IgMi02OiBNYW51ZmFjdHVyZXI6 IFJJQ09IICAgICAgICAgICAgIApbMzI5OTkuOTIyMjcyXSB1c2IgMi02OiBTZXJpYWxOdW1i ZXI6IFI1VTg4MC0wMDAwMwpbMzI5OTkuOTIyNzYzXSBzY3NpNSA6IHVzYi1zdG9yYWdlIDIt NjoxLjAKWzMzMDAwLjkyMDg4NF0gc2NzaSA1OjA6MDowOiBEaXJlY3QtQWNjZXNzICAgICBS SUNPSCAgICBSNVU4ODBGbGFzaE1lZGlhIDAwMDAgUFE6IDAgQU5TSTogMgpbMzMwMDAuOTIy OTg4XSBzZCA1OjA6MDowOiBBdHRhY2hlZCBzY3NpIGdlbmVyaWMgc2cyIHR5cGUgMApbMzMw MDEuMTE4OTg5XSBzZCA1OjA6MDowOiBbc2RiXSAzMTExNjI4OCA1MTItYnl0ZSBsb2dpY2Fs IGJsb2NrczogKDE1LjkgR0IvMTQuOCBHaUIpClszMzAwMS4xMTk2MjFdIHNkIDU6MDowOjA6 IFtzZGJdIFdyaXRlIFByb3RlY3QgaXMgb2ZmClszMzAwMS4xMTk2MjZdIHNkIDU6MDowOjA6 IFtzZGJdIE1vZGUgU2Vuc2U6IDBiIDAwIDAwIDA4ClszMzAwMS4xMjAyNDldIHNkIDU6MDow OjA6IFtzZGJdIE5vIENhY2hpbmcgbW9kZSBwYWdlIHByZXNlbnQKWzMzMDAxLjEyMDI1M10g c2QgNTowOjA6MDogW3NkYl0gQXNzdW1pbmcgZHJpdmUgY2FjaGU6IHdyaXRlIHRocm91Z2gK WzMzMDAxLjEyNTk2OV0gc2QgNTowOjA6MDogW3NkYl0gTm8gQ2FjaGluZyBtb2RlIHBhZ2Ug cHJlc2VudApbMzMwMDEuMTI1OTczXSBzZCA1OjA6MDowOiBbc2RiXSBBc3N1bWluZyBkcml2 ZSBjYWNoZTogd3JpdGUgdGhyb3VnaApbMzMwMDEuMTI3NDg2XSAgc2RiOiBzZGIxIHNkYjIK WzMzMDAxLjEzMzU5Nl0gc2QgNTowOjA6MDogW3NkYl0gTm8gQ2FjaGluZyBtb2RlIHBhZ2Ug cHJlc2VudApbMzMwMDEuMTMzNjAxXSBzZCA1OjA6MDowOiBbc2RiXSBBc3N1bWluZyBkcml2 ZSBjYWNoZTogd3JpdGUgdGhyb3VnaApbMzMwMDEuMTMzNjA1XSBzZCA1OjA6MDowOiBbc2Ri XSBBdHRhY2hlZCBTQ1NJIHJlbW92YWJsZSBkaXNrClszMzAwMS43MDgwNzFdIEJVRzogdW5h YmxlIHRvIGhhbmRsZSBrZXJuZWwgTlVMTCBwb2ludGVyIGRlcmVmZXJlbmNlIGF0ICAgICAg ICAgICAobnVsbCkKWzMzMDAxLjcwODEyNl0gSVA6IFs8ZmZmZmZmZmY4MTIzYmIwZD5dIGV4 dDRfc3VwZXJibG9ja19jc3VtX3NldCsweDRkLzB4ZDAKWzMzMDAxLjcwODE2N10gUEdEIDc4 M2VhMDY3IFBVRCA3ODBjMzA2NyBQTUQgMCAKWzMzMDAxLjcwODE5OV0gT29wczogMDAwMCBb IzFdIFNNUCAKWzMzMDAxLjcwODIyNV0gQ1BVIDAgClszMzAwMS43MDgyMzhdIE1vZHVsZXMg bGlua2VkIGluOiBubHNfaXNvODg1OV8xIHVzYl9zdG9yYWdlIGlwNnRhYmxlX2ZpbHRlciBp cDZfdGFibGVzIGVidGFibGVfbmF0IGVidGFibGVzIGlwdF9NQVNRVUVSQURFIGlwdGFibGVf bmF0IG5mX25hdCBuZl9jb25udHJhY2tfaXB2NCBuZl9kZWZyYWdfaXB2NCB4dF9zdGF0ZSBu Zl9jb25udHJhY2sgaXB0X1JFSkVDVCB4dF9DSEVDS1NVTSBpcHRhYmxlX21hbmdsZSB4dF90 Y3B1ZHAgaXB0YWJsZV9maWx0ZXIgaXBfdGFibGVzIHhfdGFibGVzIGJyaWRnZSBzdHAgbGxj IHBhcnBvcnRfcGMgcHBkZXYgcmZjb21tIGJuZXAgYmx1ZXRvb3RoIHNuZF9oZGFfY29kZWNf Y29uZXhhbnQgY29yZXRlbXAga3ZtX2ludGVsIGt2bSBhcmM0IHNuZF9oZGFfaW50ZWwgc25k X2hkYV9jb2RlYyBzbmRfaHdkZXAgc25kX3BjbSB0aGlua3BhZF9hY3BpIHNuZF9zZXFfbWlk aSBzbmRfcmF3bWlkaSBzbmRfc2VxX21pZGlfZXZlbnQgc25kX3NlcSBtaWNyb2NvZGUgc25k X3RpbWVyIHV2Y3ZpZGVvIHZpZGVvYnVmMl9jb3JlIHBzbW91c2UgdmlkZW9kZXYgdmlkZW9i dWYyX3ZtYWxsb2Mgc25kX3NlcV9kZXZpY2UgbHBjX2ljaCBpd2x3aWZpIHNlcmlvX3JhdyB2 aWRlb2J1ZjJfbWVtb3BzIHNuZCBtYWM4MDIxMSBzb3VuZGNvcmUgc25kX3BhZ2VfYWxsb2Mg Y2ZnODAyMTEgdHBtX3RpcyBudnJhbSB3bWkgaTkxNSBkcm1fa21zX2hlbHBlciBkcm0gaTJj X2FsZ29fYml0IHZpZGVvIG1laSBtYWNfaGlkIGxwIHBhcnBvcnQgaGlkX2dlbmVyaWMgdXNi aGlkIGhpZCBhaGNpIGxpYmFoY2kgZTEwMDBlClszMzAwMS43MDg4MjVdIApbMzMwMDEuNzA4 ODMwXSBQaWQ6IDYzMzQsIGNvbW06IG1vdW50IE5vdCB0YWludGVkIDMuNS4wLTM0LWdlbmVy aWMgIzU1LVVidW50dSBMRU5PVk8gNzQ1M1dSSy83NDUzV1JLClszMzAwMS43MDg4ODJdIFJJ UDogMDAxMDpbPGZmZmZmZmZmODEyM2JiMGQ+XSAgWzxmZmZmZmZmZjgxMjNiYjBkPl0gZXh0 NF9zdXBlcmJsb2NrX2NzdW1fc2V0KzB4NGQvMHhkMApbMzMwMDEuNzA4OTMxXSBSU1A6IDAw MDA6ZmZmZjg4MDAxZjQ2ZDZhOCAgRUZMQUdTOiAwMDAxMDIwMgpbMzMwMDEuNzA4OTYwXSBS QVg6IGZmZmY4ODAxMzBkODcwMDAgUkJYOiBmZmZmODgwMGE1OTVlNDAwIFJDWDogMDAwMDAw MDAwMDAwMDAwMgpbMzMwMDEuNzA4OTk2XSBSRFg6IDAwMDAwMDAwMDAwMDAwMDAgUlNJOiBm ZmZmODgwMGE1OTVlNDAwIFJESTogZmZmZjg4MDEzMTUyODgwMApbMzMwMDEuNzA5MDMyXSBS QlA6IGZmZmY4ODAwMWY0NmQ2YzggUjA4OiBmZmZmZmZmZjgxY2Q1NzIwIFIwOTogMDAwMDAw MDAwMDAwMDEwMApbMzMwMDEuNzA5MDY4XSBSMTA6IGZmOWZkMDA5M2JmOWQ0MDIgUjExOiAw MDAwMDAwMDAwMDAwMDAwIFIxMjogZmZmZjg4MDA0MjMwMDc1MApbMzMwMDEuNzA5MTA0XSBS MTM6IGZmZmY4ODAwMWY0NmQ2YTggUjE0OiAwMDAwMDAwMDAwMDAwMDAwIFIxNTogZmZmZjg4 MDEzMTUyODgwMApbMzMwMDEuNzA5MTQxXSBGUzogIDAwMDA3ZmMzMDI4MGQ4MDAoMDAwMCkg R1M6ZmZmZjg4MDEzYmMwMDAwMCgwMDAwKSBrbmxHUzowMDAwMDAwMDAwMDAwMDAwClszMzAw MS43MDkxODNdIENTOiAgMDAxMCBEUzogMDAwMCBFUzogMDAwMCBDUjA6IDAwMDAwMDAwODAw NTAwM2IKWzMzMDAxLjcwOTIxM10gQ1IyOiAwMDAwMDAwMDAwMDAwMDAwIENSMzogMDAwMDAw MDAxYWFhOTAwMCBDUjQ6IDAwMDAwMDAwMDAwNDA3ZjAKWzMzMDAxLjcwOTI0OF0gRFIwOiAw MDAwMDAwMDAwMDAwMDAwIERSMTogMDAwMDAwMDAwMDAwMDAwMCBEUjI6IDAwMDAwMDAwMDAw MDAwMDAKWzMzMDAxLjcwOTI4NF0gRFIzOiAwMDAwMDAwMDAwMDAwMDAwIERSNjogMDAwMDAw MDBmZmZmMGZmMCBEUjc6IDAwMDAwMDAwMDAwMDA0MDAKWzMzMDAxLjcwOTMyMl0gUHJvY2Vz cyBtb3VudCAocGlkOiA2MzM0LCB0aHJlYWRpbmZvIGZmZmY4ODAwMWY0NmMwMDAsIHRhc2sg ZmZmZjg4MDBhMWVhMmUwMCkKWzMzMDAxLjcwOTM1N10gU3RhY2s6ClszMzAwMS43MDkzNzBd ICBmZmZmZmZmZjgxMTQwYjc5IDAwMDAwMDAwMDAwZTFlZWQgZmZmZjg4MDA0MjMwMDc1MCBm ZmZmODgwMGE1OTVlNDAwClszMzAwMS43MDk0MTNdICBmZmZmODgwMDFmNDZkNzE4IGZmZmZm ZmZmODEyM2MzMzMgMDAwMDAwMDEzNmNhMGY2MCAwMDAwMDAwMDAwNDBiNzQ1ClszMzAwMS43 MDk0NTZdICBmZmZmODgwMDFmNDZkNzE4IGZmZmY4ODAxMzE1Mjg4MDAgMDAwMDAwMDAwMDAz MTFiNyBmZmZmZmZmZjgxODI3YmMwClszMzAwMS43MDk0OThdIENhbGwgVHJhY2U6ClszMzAw MS43MDk1MTNdICBbPGZmZmZmZmZmODExNDBiNzk+XSA/IHpvbmVfc3RhdGlzdGljcysweDk5 LzB4YzAKWzMzMDAxLjcwOTU0MV0gIFs8ZmZmZmZmZmY4MTIzYzMzMz5dIGV4dDRfY29tbWl0 X3N1cGVyKzB4MTczLzB4MjUwClszMzAwMS43MDk1NjhdICBbPGZmZmZmZmZmODEyM2M2MDM+ XSBzYXZlX2Vycm9yX2luZm8rMHgyMy8weDMwClszMzAwMS43MDk1OTRdICBbPGZmZmZmZmZm ODEyM2Q3YTM+XSBleHQ0X2Vycm9yX2lub2RlKzB4NjMvMHgxMjAKWzMzMDAxLjcwOTYyM10g IFs8ZmZmZmZmZmY4MTIxYmRiOD5dIF9fY2hlY2tfYmxvY2tfdmFsaWRpdHkuY29uc3Rwcm9w LjQ4KzB4NzgvMHg4MApbMzMwMDEuNzA5NjU2XSAgWzxmZmZmZmZmZjgxMjFkOTgwPl0gZXh0 NF9tYXBfYmxvY2tzKzB4MTkwLzB4MjUwClszMzAwMS43MDk2ODNdICBbPGZmZmZmZmZmODEy MWZjYjY+XSBfZXh0NF9nZXRfYmxvY2srMHhhNi8weDE2MApbMzMwMDEuNzA5NzEyXSAgWzxm ZmZmZmZmZjgxMjFmZGQ2Pl0gZXh0NF9nZXRfYmxvY2srMHgxNi8weDIwClszMzAwMS43MDk3 NDBdICBbPGZmZmZmZmZmODExYjI1Y2Y+XSBnZW5lcmljX2Jsb2NrX2JtYXArMHgzZi8weDUw ClszMzAwMS43MDk3NzFdICBbPGZmZmZmZmZmODE2ODIxN2U+XSA/IF9yYXdfc3Bpbl9sb2Nr KzB4ZS8weDIwClszMzAwMS43MDk3OTldICBbPGZmZmZmZmZmODExMmNhOTI+XSA/IG1hcHBp bmdfdGFnZ2VkKzB4MTIvMHgyMApbMzMwMDEuNzA5ODI2XSAgWzxmZmZmZmZmZjgxMjFjYzZj Pl0gZXh0NF9ibWFwKzB4NmMvMHhlMApbMzMwMDEuNzA5ODUxXSAgWzxmZmZmZmZmZjgxMTli MWFlPl0gYm1hcCsweDFlLzB4MjAKWzMzMDAxLjcwOTg3Nl0gIFs8ZmZmZmZmZmY4MTI3MzFj Mz5dIGpiZDJfam91cm5hbF9ibWFwKzB4MzMvMHhiMApbMzMwMDEuNzA5OTA0XSAgWzxmZmZm ZmZmZjgxMjZjNGEwPl0ganJlYWQrMHg0MC8weDI3MApbMzMwMDEuNzA5OTI5XSAgWzxmZmZm ZmZmZjgxMWIzZWZjPl0gPyBfX2dldGJsaysweDJjLzB4MmUwClszMzAwMS43MDk5NTRdICBb PGZmZmZmZmZmODE2ODIxN2U+XSA/IF9yYXdfc3Bpbl9sb2NrKzB4ZS8weDIwClszMzAwMS43 MDk5ODJdICBbPGZmZmZmZmZmODEwNzY3Nzc+XSA/IGJpdF93YWl0cXVldWUrMHgxNy8weGMw ClszMzAwMS43MTAwMDhdICBbPGZmZmZmZmZmODEyNmNiMGI+XSBkb19vbmVfcGFzcysweDQz Yi8weGMzMApbMzMwMDEuNzExMzQ3XSAgWzxmZmZmZmZmZjgxNjdmYTJjPl0gPyBvdXRfb2Zf bGluZV93YWl0X29uX2JpdCsweDdjLzB4OTAKWzMzMDAxLjcxMjAwN10gIFs8ZmZmZmZmZmY4 MTI2ZDNkOT5dIGpiZDJfam91cm5hbF9yZWNvdmVyKzB4ZDkvMHgxMTAKWzMzMDAxLjcxMjAw N10gIFs8ZmZmZmZmZmY4MTI3MmNiZj5dIGpiZDJfam91cm5hbF9sb2FkKzB4ZGYvMHgzOTAK WzMzMDAxLjcxMjAwN10gIFs8ZmZmZmZmZmY4MTE2ZTRjNT5dID8ga21lbV9jYWNoZV9hbGxv Y190cmFjZSsweDM1LzB4MTEwClszMzAwMS43MTIwMDddICBbPGZmZmZmZmZmODEyNDExZTg+ XSBleHQ0X2ZpbGxfc3VwZXIrMHgxZTg4LzB4MmUxMApbMzMwMDEuNzEyMDA3XSAgWzxmZmZm ZmZmZjgxMTg1ODhiPl0gbW91bnRfYmRldisweDFjYi8weDIxMApbMzMwMDEuNzEyMDA3XSAg WzxmZmZmZmZmZjgxMjNmMzYwPl0gPyBleHQ0X2NhbGN1bGF0ZV9vdmVyaGVhZCsweDQzMC8w eDQzMApbMzMwMDEuNzEyMDA3XSAgWzxmZmZmZmZmZjgxMjJlMTQ1Pl0gZXh0NF9tb3VudCsw eDE1LzB4MjAKWzMzMDAxLjcxMjAwN10gIFs8ZmZmZmZmZmY4MTE4NjNjMz5dIG1vdW50X2Zz KzB4NDMvMHgxYjAKWzMzMDAxLjcxMjAwN10gIFs8ZmZmZmZmZmY4MTE5Zjg3Mz5dID8gZmlu ZF9maWxlc3lzdGVtKzB4NjMvMHg4MApbMzMwMDEuNzEyMDA3XSAgWzxmZmZmZmZmZjgxMWEw NzM0Pl0gdmZzX2tlcm5fbW91bnQrMHg3NC8weDExMApbMzMwMDEuNzEyMDA3XSAgWzxmZmZm ZmZmZjgxMWExMGE0Pl0gZG9fa2Vybl9tb3VudCsweDU0LzB4MTEwClszMzAwMS43MTIwMDdd ICBbPGZmZmZmZmZmODExYTI5ZGE+XSBkb19tb3VudCsweDI2YS8weDg5MApbMzMwMDEuNzEy MDA3XSAgWzxmZmZmZmZmZjgxMTNlMzJiPl0gPyBzdHJuZHVwX3VzZXIrMHg1Yi8weDgwClsz MzAwMS43MTIwMDddICBbPGZmZmZmZmZmODExYTMxNGQ+XSBzeXNfbW91bnQrMHg4ZC8weGUw ClszMzAwMS43MTIwMDddICBbPGZmZmZmZmZmODE2OGE0Mjk+XSBzeXN0ZW1fY2FsbF9mYXN0 cGF0aCsweDE2LzB4MWIKWzMzMDAxLjcxMjAwN10gQ29kZTogNTggNjggZjYgNDMgNjUgMDQg NzUgMTYgNDggOGIgNWQgZTggNGMgOGIgNjUgZjAgNGMgOGIgNmQgZjggYzkgYzMgMGYgMWYg ODQgMDAgMDAgMDAgMDAgMDAgNDggOGIgOTAgYTggMDMgMDAgMDAgNDkgODkgZTUgNDggODkg ZGUgPDhiPiAwMiA0OCA4MyBjMCAxNyA0OCA4MyBlMCBmOCA0OCA4MyBjMCAxNiA0OCBjMSBl OCAwNCA0OCBjMSBlMCAKWzMzMDAxLjcxMjAwN10gUklQICBbPGZmZmZmZmZmODEyM2JiMGQ+ XSBleHQ0X3N1cGVyYmxvY2tfY3N1bV9zZXQrMHg0ZC8weGQwClszMzAwMS43MTIwMDddICBS U1AgPGZmZmY4ODAwMWY0NmQ2YTg+ClszMzAwMS43MTIwMDddIENSMjogMDAwMDAwMDAwMDAw MDAwMApbMzMwMDEuNzQ3NDI4XSAtLS1bIGVuZCB0cmFjZSBkN2MzNDEwMWIwNGNkZWRkIF0t LS0KCg== --------------010209090500090807080800--