Guillermo Rodas, thank you for reporting this and helping make Ubuntu better. As per http://support.lenovo.com/us/en/products/laptops-and- netbooks/lenovo-g-series-laptops/g40-80 an update to your computer's buggy and outdated BIOS is available (95). 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 provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status Confirmed. Otherwise, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-95 ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Attachment removed: "version.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507091/+attachment/4497509/+files/version.log -- 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/1507091 Title: Corrupted low memory on Ubuntu 15.04 Status in linux package in Ubuntu: Incomplete Bug description: I have had a lot of freezes on my laptop, and I'm trying to figure out what is the reason because just have like 6 months of bought. This is my laptop information: Lenovo G40-80 7,7 GiB Memory Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 AMD Radeon HD 8500M Ubuntu 15.04 64-bit (Gnome version) I made a memtest86 and I got 3/4 good test (I took like 4 hours, so I just stopped it because I had to leave). I have this log that I think that was just before freezes (I have to do a Alt + SysReq + REISUB, for restart my laptop): Oct 17 00:26:51 lenovo kernel: [ 120.925598] Corrupted low memory at ffff880000004fc0 (4fc0 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925599] Corrupted low memory at ffff880000004fc8 (4fc8 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925600] Corrupted low memory at ffff880000004fd0 (4fd0 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925601] Corrupted low memory at ffff880000004fd8 (4fd8 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925602] Corrupted low memory at ffff880000004fe0 (4fe0 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925603] Corrupted low memory at ffff880000004fe8 (4fe8 phys) = ff232d2eff232d2e Oct 17 00:26:51 lenovo kernel: [ 120.925604] Corrupted low memory at ffff880000004ff0 (4ff0 phys) = ff242d2eff242d2e Oct 17 00:26:51 lenovo kernel: [ 120.925605] Corrupted low memory at ffff880000004ff8 (4ff8 phys) = ff242d2eff242d2e Oct 17 00:26:51 lenovo kernel: [ 120.925611] ------------[ cut here ]------------ Oct 17 00:26:51 lenovo kernel: [ 120.925616] WARNING: CPU: 2 PID: 218 at /build/linux-qOmAV7/linux-3.19.0/arch/x86/kernel/check.c:140 check_for_bios_corruption+0xcb/0x120() Oct 17 00:26:51 lenovo kernel: [ 120.925617] Memory corruption detected in low memory Oct 17 00:26:51 lenovo kernel: [ 120.925619] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm bnep nls_iso8859_1 rtsx_usb_ms intel_rapl memstick iosf_mbi uvcvideo x86_pkg_temp_thermal intel_powerclamp coretemp videobuf2_vmalloc btusb kvm_intel videobuf2_memops bluetooth kvm arc4 videobuf2_core v4l2_common videodev rtl8723be snd_hda_codec_hdmi media crct10dif_pclmul crc32_pclmul i915_bpo btcoexist rtl8723_common rtl_pci ghash_clmulni_intel rtlwifi aesni_intel mac80211 aes_x86_64 lrw snd_hda_codec_conexant gf128mul intel_ips snd_hda_codec_generic glue_helper fglrx(POE) snd_hda_intel snd_hda_controller cfg80211 drm_kms_helper snd_hda_codec ablk_helper snd_hwdep drm snd_pcm cryptd snd_seq_midi amd_iommu_v2 snd_seq_midi_event snd_rawmidi i2c_algo_bit joydev serio_raw snd_seq ideapad_laptop snd_seq_device sparse_keymap mei_me snd_timer mei snd 8250_fintek soundcore shpchp wmi snd_soc_sst_acpi mac_hid lpc_ich video acpi_pad parport_pc ppdev lp parport autofs4 rtsx_usb_sdmmc rtsx_usb hid_generic usbhid hid psmouse ahci r8169 libahci mii Oct 17 00:26:51 lenovo kernel: [ 120.925688] CPU: 2 PID: 218 Comm: kworker/2:2 Tainted: P OE 3.19.0-30-generic #34-Ubuntu Oct 17 00:26:51 lenovo kernel: [ 120.925690] Hardware name: LENOVO 80E4/Lenovo G40-80, BIOS B0CN69WW 06/20/2014 Oct 17 00:26:51 lenovo kernel: [ 120.925694] Workqueue: events check_corruption Oct 17 00:26:51 lenovo kernel: [ 120.925696] ffffffff81a92f40 ffff88009955bcf8 ffffffff817c4d5f 0000000000000007 Oct 17 00:26:51 lenovo kernel: [ 120.925699] ffff88009955bd48 ffff88009955bd38 ffffffff81076a8a ffff880000004ff8 Oct 17 00:26:51 lenovo kernel: [ 120.925702] 0000000000000000 ffff880000010000 ffffffff81ede390 0000000000000001 Oct 17 00:26:51 lenovo kernel: [ 120.925706] Call Trace: Oct 17 00:26:51 lenovo kernel: [ 120.925712] [<ffffffff817c4d5f>] dump_stack+0x45/0x57 Oct 17 00:26:51 lenovo kernel: [ 120.925716] [<ffffffff81076a8a>] warn_slowpath_common+0x8a/0xc0 Oct 17 00:26:51 lenovo kernel: [ 120.925719] [<ffffffff81076b06>] warn_slowpath_fmt+0x46/0x50 Oct 17 00:26:51 lenovo kernel: [ 120.925724] [<ffffffff810135e0>] ? __switch_to+0x150/0x5e0 Oct 17 00:26:51 lenovo kernel: [ 120.925728] [<ffffffff8105d8bb>] check_for_bios_corruption+0xcb/0x120 Oct 17 00:26:51 lenovo kernel: [ 120.925731] [<ffffffff8105d91e>] check_corruption+0xe/0x40 Oct 17 00:26:51 lenovo kernel: [ 120.925735] [<ffffffff8108fd78>] process_one_work+0x158/0x430 Oct 17 00:26:51 lenovo kernel: [ 120.925738] [<ffffffff810908bb>] worker_thread+0x5b/0x530 Oct 17 00:26:51 lenovo kernel: [ 120.925741] [<ffffffff81090860>] ? rescuer_thread+0x3a0/0x3a0 Oct 17 00:26:51 lenovo kernel: [ 120.925745] [<ffffffff81095959>] kthread+0xc9/0xe0 Oct 17 00:26:51 lenovo kernel: [ 120.925748] [<ffffffff81095890>] ? kthread_create_on_node+0x1c0/0x1c0 Oct 17 00:26:51 lenovo kernel: [ 120.925752] [<ffffffff817cbdd8>] ret_from_fork+0x58/0x90 Oct 17 00:26:51 lenovo kernel: [ 120.925755] [<ffffffff81095890>] ? kthread_create_on_node+0x1c0/0x1c0 Oct 17 00:26:51 lenovo kernel: [ 120.925758] ---[ end trace 2d11d40c669ca9f1 ]--- ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-30-generic 3.19.0-30.34 ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: garethderioth 2749 F.... pulseaudio /dev/snd/controlC1: garethderioth 2749 F.... pulseaudio CurrentDesktop: GNOME Date: Sat Oct 17 00:50:25 2015 HibernationDevice: RESUME=UUID=f5e958f3-cb2a-4efb-9bf6-be3b31234061 InstallationDate: Installed on 2015-07-16 (92 days ago) InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 80E4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=45fd5ced-f1b0-4701-9acc-13b7f3be3222 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-30-generic N/A linux-backports-modules-3.19.0-30-generic N/A linux-firmware 1.143.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/20/2014 dmi.bios.vendor: LENOVO dmi.bios.version: B0CN69WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Lenovo G40-80 dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G40-80 dmi.modalias: dmi:bvnLENOVO:bvrB0CN69WW:bd06/20/2014:svnLENOVO:pn80E4:pvrLenovoG40-80:rvnLENOVO:rnLenovoG40-80:rvrNODPK:cvnLENOVO:ct10:cvrLenovoG40-80: dmi.product.name: 80E4 dmi.product.version: Lenovo G40-80 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507091/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
