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Message #48722
[Bug 1265309] Re: [Lenovo W510 - SSD Samsung EVO] Sudden Read-Only Filesystems
*** This bug is a duplicate of bug 1266305 ***
https://bugs.launchpad.net/bugs/1266305
++++++++++++++++++++++++++++++++++++++++++++++++++++
[UPDATE 05th March 2014]
The lenovo service was here and changed the mainboard.
No problems any more with a Crucial M500 480 GB and therefore
I think witch any other SSD on the W510.
So the problem turned out a real hardware problem.
The lenovo diagnostic cd however did not turn out any problem.
So to make a long story short: If you encounter any problems like in
this thread, don't heasitate to contact the lenovo service and insist for
a repair. In my case, I had to contact the service twice because I am using
hardware that is not part of the supported lenovo device list.
++++++++++++++++++++++++++++++++++++++++++++++++++++
** Description changed:
+ ++++++++++++++++++++++++++++++++++++++++++++++++++++
+ [UPDATE 05th March 2014]
+
+ The lenovo service was here and changed the mainboard.
+ No problems any more with a Crucial M500 480 GB and therefore
+ I think witch any other SSD on the W510.
+
+ So the problem turned out a real hardware problem.
+ The lenovo diagnostic cd however did not turn out any problem.
+ So to make a long story short: If you encounter any problems like in
+ this thread, don't heasitate to contact the lenovo service and insist for
+ a repair. In my case, I had to contact the service twice because I am using
+ hardware that is not part of the supported lenovo device list.
+
+ ++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+
After a while of running the system, the SSD goes into a readonly file system mode. I am running Ubuntu 12.04 LTS linux-image-generic-lts-saucy, lvm2 in a version that supports trim and are encrypted on three machines, with the only one affected is 3.:
1. An intel xeon with an asus motherboard, 32GB RAM, SSD (SAMSUNG older model)
2. An Lenovo Thinkpad 201s i7, 8GB RAM, SSD (Crucial)
3. An Lenovo Thinkpad W510 i7 720, 8GB RAM, SSD (Samsung EVO)
ii lvm2 2.02.95-4ubuntu1.1~p Linux Logical Volume Manager
/etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
/etc/modprobe.d/options: EMPTY
The #3 (W510) randomly freezes with the following errors:
> dmesg | grep ata1
ata1: SATA max UDMA/133 abar m2048@0xf2627000 port 0xf2627100 irq 54
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
ata1.00: ATA-9: Samsung SSD 840 EVO 500GB, EXT0BB0Q, max UDMA/133
ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
ata1.00: configured for UDMA/133
[...]
These errors occur up to 5-10 times, then the SSD is set to readonly
state like this:
> demsg | grep ata1
ata1: EH complete
ata1: limiting SATA link speed to 1.5 Gbps
ata1.00: exception Emask 0x52 SAct 0x1 SErr 0x1a80d00 action 0x6 frozen
ata1.00: irq_stat 0x08000000, interface fatal error
ata1: SError: { UnrecovData Proto HostInt 10B8B BadCRC LinkSeq TrStaTrns }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:d8:b9:27/00:00:05:00:00/40 tag 0 ncq 4096 in
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
---------------------------------
i am now trying the following settings:
/etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash
libata.force=noncq"
/etc/modprobe.d/options: options libata noacpi=1
/etc/default/tlp (which was on standard setting until now)
# Hard disk advanced power management level: 1(max saving)..254(off)
# Levels 1..127 may spin down the disk.
# Separate values for multiple devices with spaces.
DISK_APM_LEVEL_ON_AC="254 254"
DISK_APM_LEVEL_ON_BAT="254 254"
# SATA aggressive link power management (ALPM):
# min_power/medium_power/max_performance
SATA_LINKPWR_ON_AC=max_performance
SATA_LINKPWR_ON_BAT=max_performance
I will write ... after further testing.
Please note: system #1. and #2. are running without any problems!
---------------------------------------------------
AFTER 2 DAYS
---------------------------------------------------
Unfortunetely with the settings from above i was not lucky this morning.
When I turned on the W510 notebook (#3.) it stuck like before. I really
think, this is system specific for this laptop, because the other
computers with itdentical software are running flawlessly ... 24/7 (via
suspend / resume).
I also have to add, that all disks run on lvm based cryptsetup!
> cat /var/log/syslog.1 | grep ata1 | cut -d "[" -f2
1.419360] ata1: SATA max UDMA/133 abar m2048@0xf2627000 port 0xf2627100 irq 53
1.737774] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
1.741004] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
1.741014] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
1.741020] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
1.741298] ata1.00: ATA-9: Samsung SSD 840 EVO 500GB, EXT0BB0Q, max UDMA/133
1.741303] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
1.742899] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
1.742907] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered ou
1.742913] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
1.743209] ata1.00: configured for UDMA/133
-----------------------------------------------
AFTER 5 DAYS
_____________________________
I changed my fstab and removed the "defaults"-entry:
Probably this was the problem and the "defaults"-entry puts some mount options, that interfere with the ssd.
fatab-NEW: /dev/mapper/vg--myvg-root / ext4 noatime,errors=remount-ro 0 1
fstab-OLD: /dev/mapper/vg--myvg-root / ext4 defaults,noatime,errors=remount-ro 0 1
I left the libata option in modprobe and kernel boot options:
> cat /etc/modprobe.d/options
options libata noacpi=1
> cat /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash libata.force=noncq libata.noacpi=1"
Since two days the system is running without any filesystem-freezes.
I am attaching an ubuntu bug-report which can probably help to solve and analyse the problem.
The system is up to date as time of writing and all necessary updates are applied.
----------------------------------------------
AFTER 6 DAYS
_____________________________
In my last comment I hoped, the problem was solved
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063354/comments/123).
Unfortunately it is not. Yeterday morning my filesystem was readonly
again.
So I am going to
- remove now all noatime, all trim-related entries from fstab, lvm.conf and cryptsetup
- I am reverting to the presice version of lvm 2
- I am setting back all acpi settings for libata in modprobe.d/options and default/grub
- Reverting the bios to F9 -> default settings
- ---
+ ---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-35-generic.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
ArecordDevices:
- **** List of CAPTURE Hardware Devices ****
- card 0: MID [HDA Intel MID], device 0: CONEXANT Analog [CONEXANT Analog]
- Subdevices: 1/1
- Subdevice #0: subdevice #0
+ **** List of CAPTURE Hardware Devices ****
+ card 0: MID [HDA Intel MID], device 0: CONEXANT Analog [CONEXANT Analog]
+ Subdevices: 1/1
+ Subdevice #0: subdevice #0
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC1: apos 3104 F.... pulseaudio
- /dev/snd/controlC0: apos 3104 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC1: apos 3104 F.... pulseaudio
+ /dev/snd/controlC0: apos 3104 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
- Card hw:0 'MID'/'HDA Intel MID at 0xf2620000 irq 57'
- Mixer name : 'Conexant CX20585'
- Components : 'HDA:14f15069,17aa218b,00100302'
- Controls : 24
- Simple ctrls : 10
+ Card hw:0 'MID'/'HDA Intel MID at 0xf2620000 irq 57'
+ Mixer name : 'Conexant CX20585'
+ Components : 'HDA:14f15069,17aa218b,00100302'
+ Controls : 24
+ Simple ctrls : 10
Card1.Amixer.info:
- Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
- Mixer name : 'Nvidia GPU 0a HDMI/DP'
- Components : 'HDA:10de000a,10de0101,00100100'
- Controls : 28
- Simple ctrls : 4
+ Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
+ Mixer name : 'Nvidia GPU 0a HDMI/DP'
+ Components : 'HDA:10de000a,10de0101,00100100'
+ Controls : 28
+ Simple ctrls : 4
Card29.Amixer.info:
- Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT46WW-1.21'
- Mixer name : 'ThinkPad EC 6MHT46WW-1.21'
- Components : ''
- Controls : 1
- Simple ctrls : 1
+ Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT46WW-1.21'
+ Mixer name : 'ThinkPad EC 6MHT46WW-1.21'
+ Components : ''
+ Controls : 1
+ Simple ctrls : 1
Card29.Amixer.values:
- Simple mixer control 'Console',0
- Capabilities: pswitch pswitch-joined penum
- Playback channels: Mono
- Mono: Playback [on]
+ Simple mixer control 'Console',0
+ Capabilities: pswitch pswitch-joined penum
+ Playback channels: Mono
+ Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=bff321d8-efab-4f3f-9753-10790b81a36d
InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.2)
MachineType: LENOVO 4391E46
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
- TERM=xterm
- PATH=(custom, no user)
- LANG=de_DE.UTF-8
- SHELL=/bin/bash
+ TERM=xterm
+ PATH=(custom, no user)
+ LANG=de_DE.UTF-8
+ SHELL=/bin/bash
ProcFB:
-
+
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-35-generic root=/dev/mapper/vg--hostname-root ro quiet splash
ProcVersionSignature: Ubuntu 3.8.0-35.50~precise1-generic 3.8.13.13
RelatedPackageVersions:
- linux-restricted-modules-3.8.0-35-generic N/A
- linux-backports-modules-3.8.0-35-generic N/A
- linux-firmware 1.79.9
+ linux-restricted-modules-3.8.0-35-generic N/A
+ linux-backports-modules-3.8.0-35-generic N/A
+ linux-firmware 1.79.9
Tags: precise running-unity
Uname: Linux 3.8.0-35-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip libvirtd lpadmin mythtv plugdev sambashare sudo
dmi.bios.date: 10/03/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6NET84WW (1.45 )
dmi.board.name: 4391E46
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn4391E46:pvrThinkPadW510:rvnLENOVO:rn4391E46:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4391E46
dmi.product.version: ThinkPad W510
dmi.sys.vendor: LENOVO
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1265309
Title:
[Lenovo W510 - SSD Samsung EVO] Sudden Read-Only Filesystems
Status in “linux” package in Ubuntu:
Invalid
Bug description:
++++++++++++++++++++++++++++++++++++++++++++++++++++
[UPDATE 05th March 2014]
The lenovo service was here and changed the mainboard.
No problems any more with a Crucial M500 480 GB and therefore
I think witch any other SSD on the W510.
So the problem turned out a real hardware problem.
The lenovo diagnostic cd however did not turn out any problem.
So to make a long story short: If you encounter any problems like in
this thread, don't heasitate to contact the lenovo service and insist for
a repair. In my case, I had to contact the service twice because I am using
hardware that is not part of the supported lenovo device list.
++++++++++++++++++++++++++++++++++++++++++++++++++++
After a while of running the system, the SSD goes into a readonly file system mode. I am running Ubuntu 12.04 LTS linux-image-generic-lts-saucy, lvm2 in a version that supports trim and are encrypted on three machines, with the only one affected is 3.:
1. An intel xeon with an asus motherboard, 32GB RAM, SSD (SAMSUNG older model)
2. An Lenovo Thinkpad 201s i7, 8GB RAM, SSD (Crucial)
3. An Lenovo Thinkpad W510 i7 720, 8GB RAM, SSD (Samsung EVO)
ii lvm2 2.02.95-4ubuntu1.1~p Linux Logical Volume Manager
/etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
/etc/modprobe.d/options: EMPTY
The #3 (W510) randomly freezes with the following errors:
> dmesg | grep ata1
ata1: SATA max UDMA/133 abar m2048@0xf2627000 port 0xf2627100 irq 54
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
ata1.00: ATA-9: Samsung SSD 840 EVO 500GB, EXT0BB0Q, max UDMA/133
ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
ata1.00: configured for UDMA/133
[...]
These errors occur up to 5-10 times, then the SSD is set to readonly
state like this:
> demsg | grep ata1
ata1: EH complete
ata1: limiting SATA link speed to 1.5 Gbps
ata1.00: exception Emask 0x52 SAct 0x1 SErr 0x1a80d00 action 0x6 frozen
ata1.00: irq_stat 0x08000000, interface fatal error
ata1: SError: { UnrecovData Proto HostInt 10B8B BadCRC LinkSeq TrStaTrns }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:d8:b9:27/00:00:05:00:00/40 tag 0 ncq 4096 in
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
---------------------------------
i am now trying the following settings:
/etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash
libata.force=noncq"
/etc/modprobe.d/options: options libata noacpi=1
/etc/default/tlp (which was on standard setting until now)
# Hard disk advanced power management level: 1(max saving)..254(off)
# Levels 1..127 may spin down the disk.
# Separate values for multiple devices with spaces.
DISK_APM_LEVEL_ON_AC="254 254"
DISK_APM_LEVEL_ON_BAT="254 254"
# SATA aggressive link power management (ALPM):
# min_power/medium_power/max_performance
SATA_LINKPWR_ON_AC=max_performance
SATA_LINKPWR_ON_BAT=max_performance
I will write ... after further testing.
Please note: system #1. and #2. are running without any problems!
---------------------------------------------------
AFTER 2 DAYS
---------------------------------------------------
Unfortunetely with the settings from above i was not lucky this
morning. When I turned on the W510 notebook (#3.) it stuck like
before. I really think, this is system specific for this laptop,
because the other computers with itdentical software are running
flawlessly ... 24/7 (via suspend / resume).
I also have to add, that all disks run on lvm based cryptsetup!
> cat /var/log/syslog.1 | grep ata1 | cut -d "[" -f2
1.419360] ata1: SATA max UDMA/133 abar m2048@0xf2627000 port 0xf2627100 irq 53
1.737774] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
1.741004] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
1.741014] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
1.741020] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
1.741298] ata1.00: ATA-9: Samsung SSD 840 EVO 500GB, EXT0BB0Q, max UDMA/133
1.741303] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
1.742899] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
1.742907] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered ou
1.742913] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
1.743209] ata1.00: configured for UDMA/133
-----------------------------------------------
AFTER 5 DAYS
_____________________________
I changed my fstab and removed the "defaults"-entry:
Probably this was the problem and the "defaults"-entry puts some mount options, that interfere with the ssd.
fatab-NEW: /dev/mapper/vg--myvg-root / ext4 noatime,errors=remount-ro 0 1
fstab-OLD: /dev/mapper/vg--myvg-root / ext4 defaults,noatime,errors=remount-ro 0 1
I left the libata option in modprobe and kernel boot options:
> cat /etc/modprobe.d/options
options libata noacpi=1
> cat /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash libata.force=noncq libata.noacpi=1"
Since two days the system is running without any filesystem-freezes.
I am attaching an ubuntu bug-report which can probably help to solve and analyse the problem.
The system is up to date as time of writing and all necessary updates are applied.
----------------------------------------------
AFTER 6 DAYS
_____________________________
In my last comment I hoped, the problem was solved
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063354/comments/123).
Unfortunately it is not. Yeterday morning my filesystem was readonly
again.
So I am going to
- remove now all noatime, all trim-related entries from fstab, lvm.conf and cryptsetup
- I am reverting to the presice version of lvm 2
- I am setting back all acpi settings for libata in modprobe.d/options and default/grub
- Reverting the bios to F9 -> default settings
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-35-generic.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: apos 3104 F.... pulseaudio
/dev/snd/controlC0: apos 3104 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
Card hw:0 'MID'/'HDA Intel MID at 0xf2620000 irq 57'
Mixer name : 'Conexant CX20585'
Components : 'HDA:14f15069,17aa218b,00100302'
Controls : 24
Simple ctrls : 10
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
Mixer name : 'Nvidia GPU 0a HDMI/DP'
Components : 'HDA:10de000a,10de0101,00100100'
Controls : 28
Simple ctrls : 4
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT46WW-1.21'
Mixer name : 'ThinkPad EC 6MHT46WW-1.21'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=bff321d8-efab-4f3f-9753-10790b81a36d
InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.2)
MachineType: LENOVO 4391E46
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-35-generic root=/dev/mapper/vg--hostname-root ro quiet splash
ProcVersionSignature: Ubuntu 3.8.0-35.50~precise1-generic 3.8.13.13
RelatedPackageVersions:
linux-restricted-modules-3.8.0-35-generic N/A
linux-backports-modules-3.8.0-35-generic N/A
linux-firmware 1.79.9
Tags: precise running-unity
Uname: Linux 3.8.0-35-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip libvirtd lpadmin mythtv plugdev sambashare sudo
dmi.bios.date: 10/03/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6NET84WW (1.45 )
dmi.board.name: 4391E46
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn4391E46:pvrThinkPadW510:rvnLENOVO:rn4391E46:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4391E46
dmi.product.version: ThinkPad W510
dmi.sys.vendor: LENOVO
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References
