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Message #37311
[Bug 1064489] Re: BUG: unable to handle kernel NULL pointer dereference at (null); RIP: 0010:[<0000000000000000>] [< (null)>] (null)
roelof van der kleij, as per http://www.dell.com/support/drivers/us/en/19/Product/optiplex-380 an update is available for your BIOS (A07). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.
For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.
Thank you for your understanding.
** Tags removed: kernel-bug-exists-upstream kernel-bug-exists-upstream-v3.6-quantal kernel-bug-exists-upstream-v3.7-rc2-raring
** Tags added: bios-outdated-a07 kernel-bug-exists-upstream-v3.7-rc2 regression-potential
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/1064489
Title:
BUG: unable to handle kernel NULL pointer dereference at (null); RIP:
0010:[<0000000000000000>] [< (null)>] (null)
Status in Samba:
Confirmed
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
When entering a dfs referral in the DFS root tree, I cannot follow the
referral to the next server. I get either a "Permission denied" error
or an "Object is remote" error.
if I cd to a non-existent folder I get a kernel oops:
username@COMP12345:~$ cd /DOMAIN/folder/dfsfolder/
username@COMP12345:/DOMAIN/folder/dfsfolder/ ls
ls: cannot open directory .: Permission denied
username@COMP12345:/DOMAIN/folder/dfsfolder$ klist
Ticket cache: FILE:/tmp/krb5cc_1234567
Default principal: username@xxxxxxxxxxxxxxxxxxxx
Valid starting Expires Service principal
09/10/12 17:18:34 10/10/12 03:18:35 krbtgt/DOMAIN.LEIDENUNIV.NL@xxxxxxxxxxxxxxxxxxxx
renew until 16/10/12 17:18:34
09/10/12 17:18:35 10/10/12 03:18:35 COMP12345$@DOMAIN.LEIDENUNIV.NL
renew until 16/10/12 17:18:34
09/10/12 17:19:13 10/10/12 03:18:35 cifs/DFSROOT@xxxxxxxxxxxxxxxxxxxx
renew until 16/10/12 17:18:34
username@COMP12345:/DOMAIN/folder/dfsfolder$ cd XXXXXXXXXX
[ 214.095043] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 214.095106] IP: [< (null)>] (null)
[ 214.095139] PGD 1061bc067 PUD 1061bb067 PMD 0
[ 214.095177] Oops: 0010 [#1] SMP
[ 214.095204] CPU 1
[ 214.095218] Modules linked in: arc4 nls_utf8 cifs autofs4 rfcomm bnep bluetooth snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi dell_wmi sparse_keymap ppdev snd_rawmidi rpcsec_gss_krb5 nfsd nfs lockd fscache auth_rpcgss nfs_acl snd_seq_midi_event sunrpc dcdbas snd_seq snd_timer snd_seq_device psmouse i915 serio_raw snd parport_pc drm_kms_helper wmi drm mac_hid soundcore i2c_algo_bit video snd_page_alloc lp parport usbhid hid tg3
[ 214.095573]
[ 214.095586] Pid: 1969, comm: bash Not tainted 3.2.0-31-generic #50-Ubuntu Dell Inc. OptiPlex 380 /01TKCC
[ 214.095656] RIP: 0010:[<0000000000000000>] [< (null)>] (null)
[ 214.095702] RSP: 0018:ffff88010614fcd0 EFLAGS: 00010286
[ 214.095734] RAX: ffffffffa0409000 RBX: ffff880036b3b3c0 RCX: 0000000000000000
[ 214.095775] RDX: ffff88010614fe78 RSI: ffff880036b3b3c0 RDI: ffff880106e90070
[ 214.095816] RBP: ffff88010614fd08 R08: ffff88012bc56ec0 R09: 0000000000000005
[ 214.095857] R10: 0000000000000000 R11: 0000000000000005 R12: ffff880106e90070
[ 214.095899] R13: ffff88010614fe78 R14: 0000000000000001 R15: ffff88010614fdf0
[ 214.095941] FS: 00007f6da7fdc700(0000) GS:ffff88012bc40000(0000) knlGS:0000000000000000
[ 214.095988] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 214.096022] CR2: 0000000000000000 CR3: 00000001061b9000 CR4: 00000000000406e0
[ 214.096063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 214.096105] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 214.096146] Process bash (pid: 1969, threadinfo ffff88010614e000, task ffff88011107ae00)
[ 214.096192] Stack:
[ 214.096206] ffffffff81182b15 ffff88010614fd08 ffffffff81190235 ffff88010614fd08
[ 214.096260] ffff88010614fe78 ffff88010614fdc8 0000000000000000 ffff88010614fd88
[ 214.096313] ffffffff81184ca2 ffff88010614fd28 ffffffff00000001 ffff880106e90110
[ 214.096366] Call Trace:
[ 214.096387] [<ffffffff81182b15>] ? d_alloc_and_lookup+0x45/0x90
[ 214.096426] [<ffffffff81190235>] ? d_lookup+0x35/0x60
[ 214.096458] [<ffffffff81184ca2>] do_lookup+0x202/0x310
[ 214.096490] [<ffffffff811869dc>] path_lookupat+0x11c/0x750
[ 214.096524] [<ffffffff81187b53>] ? user_path_at_empty+0x63/0xa0
[ 214.096563] [<ffffffff813192b7>] ? __strncpy_from_user+0x27/0x60
[ 214.096600] [<ffffffff81187041>] do_path_lookup+0x31/0xc0
[ 214.098792] [<ffffffff81187b49>] user_path_at_empty+0x59/0xa0
[ 214.099014] [<ffffffff8117cc4b>] ? vfs_stat+0x1b/0x20
[ 214.099014] [<ffffffff8117cd8a>] ? sys_newstat+0x1a/0x40
[ 214.099014] [<ffffffff81187ba1>] user_path_at+0x11/0x20
[ 214.099014] [<ffffffff81176bb3>] sys_chdir+0x23/0x90
[ 214.099014] [<ffffffff81662b02>] system_call_fastpath+0x16/0x1b
[ 214.099014] Code: Bad RIP value.
[ 214.099014] RIP [< (null)>] (null)
[ 214.099014] RSP <ffff88010614fcd0>
[ 214.099014] CR2: 0000000000000000
[ 214.140115] ---[ end trace 563b8616dd09caad ]---
I mount the DFS root from the fstab:
//domain.leidenuniv.nl/Public /DOMAIN/folder/ cifs
sec=krb5,intr,multiuser,_netdev,iocharset=utf8,noperm,nosuid,nodev,noexec,mapchars,nocase
0 0
Note due issues in netapp, kerberos and samba, the oldest Ubuntu
kernel regression tested to is 3.2.0-2-generic: mount works, but bug
present.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-31-generic 3.2.0-31.50
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kleijrgvander 3293 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfe6fc000 irq 42'
Mixer name : 'Realtek ALC269VB'
Components : 'HDA:10ec0269,10280400,00100100'
Controls : 26
Simple ctrls : 14
Date: Tue Oct 9 17:37:30 2012
HibernationDevice: RESUME=UUID=6c46ca78-30f2-4bc2-8e33-c3682ac842cc
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Dell Inc. OptiPlex 380
ProcEnviron:
LANGUAGE=en_IE:
TERM=xterm
PATH=(custom, no user)
LANG=en_IE.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic root=UUID=075b4583-73a6-4a44-bf81-3ddd983436c8 ro LTS quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.2.0-31-generic N/A
linux-backports-modules-3.2.0-31-generic N/A
linux-firmware 1.79.1
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/11/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 01TKCC
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.asset.tag: i.033.321
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA01:bd03/11/2010:svnDellInc.:pnOptiPlex380:pvr:rvnDellInc.:rn01TKCC:rvrA00:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 380
dmi.sys.vendor: Dell Inc.
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