Summury. 1. Kernels beginning at 3.13.0-41 are buggy kernels 2. 3.13.0-40 works fine. 3. with upstream kernel 3.19 the bug is not reproducible.
wifi works fine with 3.13.0-40-generic kernel after this kernel beginnig at 3.13.0-41-generic wifi works unstable, time to time internet connection is lost. Also wifi is not upping after sleeping or hibernation with kernels somewhere beginning at 3.13.0-41. So if someone has similar problems try to go back to 3.13.0-40 kernel. But really problem with not upping wifi after sleeping and hibernation is not reproducible with 3.13.0-41 or hard reproducible. But it is easier reproducible with 3.13.0-45. Kernels between 41 and 45 I did not tested for not upping wifi because I already have faced unstable wifi with 40 kernel that is enough to move to and stay on it. And of course errors I mentioned in this issue appears with kernel beginning 3.13.0-41 and including 3.13.0-41. Here they are: [ 28.076699] iwlwifi 0000:05:00.0: Microcode SW error detected. Restarting 0x82000000. [ 47.038298] iwlwifi 0000:05:00.0: Microcode SW error detected. Restarting 0x2000000. [ 90.230594] iwlwifi 0000:05:00.0: Microcode SW error detected. Restarting 0x2000000. [ 153.073963] iwlwifi 0000:05:00.0: Microcode SW error detected. Restarting 0x2000000. So it seems there is a regression bug in 3.13.0-41. I have installed upstream kernel 3.19, got these warnings W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-2.fw for module r8169 W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-1.fw for module r8169 W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-2.fw for module r8169 W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-1.fw for module r8169 I ignored them. After reboot everything with wifi works well. No errors in dmesg and internet is stable. uname -a of upstream kernel: Linux ts-ThinkPad-SL410 3.19.0-031900-generic #201502091451 SMP Mon Feb 9 14:52:52 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux ** Summary changed: - wifi works unstable + wifi works unstable 'kernel-fixed-upstream' -- 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/1421366 Title: wifi works unstable 'kernel-fixed-upstream' Status in linux package in Ubuntu: Confirmed Bug description: Hello! My wifi works unstable. It means network goes down time to time. And it makes me crazy. I am not sure where to find a cause but I found strange errors in dmesg [ 16.264702] iwlwifi 0000:05:00.0: can't disable ASPM; OS doesn't have ASPM control [ 16.265640] iwlwifi 0000:05:00.0: irq 48 for MSI/MSI-X [ 16.598809] iwlwifi 0000:05:00.0: loaded firmware version 8.24.2.2 op_mode iwldvm [ 16.628704] iwlwifi 0000:05:00.0: CONFIG_IWLWIFI_DEBUG disabled [ 16.628706] iwlwifi 0000:05:00.0: CONFIG_IWLWIFI_DEBUGFS enabled [ 16.628707] iwlwifi 0000:05:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled [ 16.628709] iwlwifi 0000:05:00.0: Detected Intel(R) WiMAX/WiFi Link 5150 ABG, REV=0x44 [ 16.629218] iwlwifi 0000:05:00.0: L1 Enabled - LTR Disabled [ 22.416806] iwlwifi 0000:05:00.0: L1 Enabled - LTR Disabled [ 22.419871] iwlwifi 0000:05:00.0: Radio type=0x1-0x1-0x0 [ 22.542892] iwlwifi 0000:05:00.0: L1 Enabled - LTR Disabled [ 22.546075] iwlwifi 0000:05:00.0: Radio type=0x1-0x1-0x0 [ 48.073232] iwlwifi 0000:05:00.0: Microcode SW error detected. Restarting 0x2000000. [ 48.073308] iwlwifi 0000:05:00.0: CSR values: [ 48.073310] iwlwifi 0000:05:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) [ 48.073335] iwlwifi 0000:05:00.0: CSR_HW_IF_CONFIG_REG: 0X00484704 [ 48.073360] iwlwifi 0000:05:00.0: CSR_INT_COALESCING: 0X00000040 [ 48.073369] iwlwifi 0000:05:00.0: CSR_INT: 0X00000000 [ 48.073377] iwlwifi 0000:05:00.0: CSR_INT_MASK: 0X00000000 [ 48.073386] iwlwifi 0000:05:00.0: CSR_FH_INT_STATUS: 0X00000000 [ 48.073394] iwlwifi 0000:05:00.0: CSR_GPIO_IN: 0X00000000 [ 48.073403] iwlwifi 0000:05:00.0: CSR_RESET: 0X00000000 [ 48.073412] iwlwifi 0000:05:00.0: CSR_GP_CNTRL: 0X080403c5 [ 48.073420] iwlwifi 0000:05:00.0: CSR_HW_REV: 0X00000044 [ 48.073429] iwlwifi 0000:05:00.0: CSR_EEPROM_REG: 0X00000000 [ 48.073438] iwlwifi 0000:05:00.0: CSR_EEPROM_GP: 0X90000804 [ 48.073446] iwlwifi 0000:05:00.0: CSR_OTP_GP_REG: 0X00020000 [ 48.073455] iwlwifi 0000:05:00.0: CSR_GIO_REG: 0X00080042 [ 48.073464] iwlwifi 0000:05:00.0: CSR_GP_UCODE_REG: 0X0000199b [ 48.073472] iwlwifi 0000:05:00.0: CSR_GP_DRIVER_REG: 0X00000000 [ 48.073481] iwlwifi 0000:05:00.0: CSR_UCODE_DRV_GP1: 0X00000000 [ 48.073506] iwlwifi 0000:05:00.0: CSR_UCODE_DRV_GP2: 0X00000000 [ 48.073514] iwlwifi 0000:05:00.0: CSR_LED_REG: 0X00000040 [ 48.073523] iwlwifi 0000:05:00.0: CSR_DRAM_INT_TBL_REG: 0X88070876 [ 48.073531] iwlwifi 0000:05:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200 [ 48.073540] iwlwifi 0000:05:00.0: CSR_ANA_PLL_CFG: 0X00880300 [ 48.073549] iwlwifi 0000:05:00.0: CSR_HW_REV_WA_REG: 0X0001001a [ 48.073573] iwlwifi 0000:05:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000 [ 48.073576] iwlwifi 0000:05:00.0: FH register values: [ 48.073628] iwlwifi 0000:05:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X07242000 [ 48.073675] iwlwifi 0000:05:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0071b6c0 [ 48.073694] iwlwifi 0000:05:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000080 [ 48.073713] iwlwifi 0000:05:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114 [ 48.073733] iwlwifi 0000:05:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc [ 48.073752] iwlwifi 0000:05:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000 [ 48.073765] iwlwifi 0000:05:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000 [ 48.073779] iwlwifi 0000:05:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001 [ 48.073798] iwlwifi 0000:05:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000 [ 48.073802] iwlwifi 0000:05:00.0: Loaded firmware version: 8.24.2.2 [ 48.073937] iwlwifi 0000:05:00.0: Start IWL Error Log Dump: [ 48.073939] iwlwifi 0000:05:00.0: Status: 0x0000004C, count: 5 [ 48.073942] iwlwifi 0000:05:00.0: 0x00000004 | NMI_INTERRUPT_WDG [ 48.073944] iwlwifi 0000:05:00.0: 0x000006F4 | uPc [ 48.073946] iwlwifi 0000:05:00.0: 0x000005BA | branchlink1 [ 48.073949] iwlwifi 0000:05:00.0: 0x000006F8 | branchlink2 [ 48.073951] iwlwifi 0000:05:00.0: 0x000008C2 | interruptlink1 [ 48.073953] iwlwifi 0000:05:00.0: 0x00005B02 | interruptlink2 [ 48.073955] iwlwifi 0000:05:00.0: 0x00000002 | data1 [ 48.073957] iwlwifi 0000:05:00.0: 0x07030000 | data2 [ 48.073959] iwlwifi 0000:05:00.0: 0x00000068 | line [ 48.073961] iwlwifi 0000:05:00.0: 0x35C02C5A | beacon time [ 48.073963] iwlwifi 0000:05:00.0: 0x8BCA63A6 | tsf low [ 48.073965] iwlwifi 0000:05:00.0: 0x0000005A | tsf hi [ 48.073967] iwlwifi 0000:05:00.0: 0x00000000 | time gp1 [ 48.073970] iwlwifi 0000:05:00.0: 0x01855040 | time gp2 [ 48.073972] iwlwifi 0000:05:00.0: 0x00000000 | time gp3 [ 48.073974] iwlwifi 0000:05:00.0: 0x00010818 | uCode version [ 48.073976] iwlwifi 0000:05:00.0: 0x00000000 | hw version [ 48.073978] iwlwifi 0000:05:00.0: 0x00484704 | board version [ 48.073980] iwlwifi 0000:05:00.0: 0x00000002 | hcmd May be it is a dublicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1099487 And wifi does not work after waking up at all. I do not know any work arounds. Please feel free to contact me. I love ubuntu and ready to help. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-45-generic 3.13.0-45.74 ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13 Uname: Linux 3.13.0-45-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ts 1475 F.... pulseaudio CRDA: country RU: (2402 - 2482 @ 40), (N/A, 20) (5735 - 5835 @ 20), (N/A, 30) CurrentDesktop: Unity Date: Thu Feb 12 22:22:48 2015 HibernationDevice: RESUME=UUID=0b240f70-b31e-4a9c-a34d-1de66cf1d394 InstallationDate: Installed on 2015-02-08 (3 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 2874RV4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic root=UUID=6cb89af7-7e1c-4430-b5d7-1a1e4a6a1675 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-45-generic N/A linux-backports-modules-3.13.0-45-generic N/A linux-firmware 1.127.11 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/30/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6JET77WW (1.35 ) dmi.board.name: 2874RV4 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:bvr6JET77WW(1.35):bd04/30/2010:svnLENOVO:pn2874RV4:pvrThinkPadSL410:rvnLENOVO:rn2874RV4:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2874RV4 dmi.product.version: ThinkPad SL410 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1421366/+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
