From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 223DEC04ABB for ; Wed, 12 Sep 2018 00:34:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CF20020833 for ; Wed, 12 Sep 2018 00:34:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF20020833 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727721AbeILFgT (ORCPT ); Wed, 12 Sep 2018 01:36:19 -0400 Received: from mga18.intel.com ([134.134.136.126]:48493 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726092AbeILFgS (ORCPT ); Wed, 12 Sep 2018 01:36:18 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Sep 2018 17:34:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,362,1531810800"; d="scan'208";a="87955942" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.4]) ([10.239.13.4]) by fmsmga004.fm.intel.com with ESMTP; 11 Sep 2018 17:34:28 -0700 Subject: Re: [LKP] [vfs] fd0002870b: BUG:KASAN:null-ptr-deref_in_n To: David Howells Cc: Stephen Rothwell , lkp@01.org, LKML References: <20180911004752.GG1110@shao2-debian> <10338.1536697773@warthog.procyon.org.uk> From: Rong Chen Message-ID: <0bac086d-13a5-7275-fd08-7e9bfc58f562@intel.com> Date: Wed, 12 Sep 2018 08:34:52 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <10338.1536697773@warthog.procyon.org.uk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/12/2018 04:29 AM, David Howells wrote: > kernel test robot wrote: > >> [ 18.568403] nfs_fs_mount+0x901/0x1220 > I don't suppose you can tell me what file and line number this corresponds to? $ faddr2line vmlinux nfs_fs_mount+0x901 nfs_fs_mount+0x901/0x1218: nfs_parse_devname at fs/nfs/super.c:1911  (inlined by) nfs_validate_text_mount_data at fs/nfs/super.c:2187  (inlined by) nfs_fs_mount at fs/nfs/super.c:2684 > > Also, can you tell me what the mount parameters were? I'm not sure how to > extract them from the information provided. qemu command (you could get from 'bin/lkp qemu -k job-script'): qemu-system-x86_64 -enable-kvm -fsdev local,id=test_dev,path=/home/nfs/.lkp//result/boot/1/vm-kbuild-1G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-r0-09070102/gcc-6/fd0002870b453c58d0d8c195954f5049bc6675fb/0,security_model=none -device virtio-9p-pci,fsdev=test_dev,mount_tag=9p/virtfs_mount -kernel vmlinuz-4.19.0-rc1-00104-gfd00028 -append root=/dev/ram0 user=lkp job=/lkp/jobs/scheduled/vm-kbuild-1G-11/boot-1-debian-x86_64-2018-04-03.cgz-fd0002870b453c58d0d8c195954f5049bc6675fb-20180910-6016-1hqt4et-1.yaml ARCH=x86_64 kconfig=x86_64-randconfig-r0-09070102 branch=linux-devel/devel-hourly-2018090623 commit=fd0002870b453c58d0d8c195954f5049bc6675fb BOOT_IMAGE=/pkg/linux/x86_64-randconfig-r0-09070102/gcc-6/fd0002870b453c58d0d8c195954f5049bc6675fb/vmlinuz-4.19.0-rc1-00104-gfd00028 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-kbuild-1G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-r0-09070102/gcc-6/fd0002870b453c58d0d8c195954f5049bc6675fb/3 LKP_LOCAL_RUN=1 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw  ip=dhcp result_service=9p/virtfs_mount -initrd /home/nfs/.lkp/cache/final_initrd -smp 2 -m 1024M -no-reboot -watchdog i6300esb -rtc base=localtime -device e1000,netdev=net0 -netdev user,id=net0 -display none -monitor null -serial stdio -device virtio-scsi-pci,id=scsi0 -drive file=/tmp/vdisk-nfs/disk-vm-kbuild-1G-11-0,if=none,id=hd0,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd0,scsi-id=1,lun=0 -drive file=/tmp/vdisk-nfs/disk-vm-kbuild-1G-11-1,if=none,id=hd1,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd1,scsi-id=1,lun=1 -drive file=/tmp/vdisk-nfs/disk-vm-kbuild-1G-11-2,if=none,id=hd2,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd2,scsi-id=1,lun=2 -drive file=/tmp/vdisk-nfs/disk-vm-kbuild-1G-11-3,if=none,id=hd3,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd3,scsi-id=1,lun=3 -drive file=/tmp/vdisk-nfs/disk-vm-kbuild-1G-11-4,if=none,id=hd4,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd4,scsi-id=1,lun=4 Best Regards, Rong Chen > > Thanks, > David > _______________________________________________ > LKP mailing list > LKP@lists.01.org > https://lists.01.org/mailman/listinfo/lkp