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Thread: random wireles network drop.

  1. #1
    Join Date
    Apr 2005
    Location
    Missoula MT
    Beans
    38
    Distro
    Ubuntu 12.04 Precise Pangolin

    Question random wireles network drop.

    so i have a samsung series 7 700Z5A-S0A, and im getting random disconnects where the card still "seems" to be connected to the router, but nothing is happning, i've managed to locate the error in dmesg but don't know what it means, ill try to include below whatever information i can to help.

    ubuntu 12.04 32bit

    wireless driver : iwlwifi

    wireless card: 02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6230 (rev 34)

    here is the the output from dmesg

    [13697.525293] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
    [13697.525298] iwlwifi 0000:02:00.0: Loaded firmware version: 18.168.6.1
    [13697.525525] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
    [13697.525527] iwlwifi 0000:02:00.0: Status: 0x0004B2E4, count: 6
    [13697.525530] iwlwifi 0000:02:00.0: 0x0000198A | ADVANCED_SYSASSERT
    [13697.525532] iwlwifi 0000:02:00.0: 0x00015920 | uPc
    [13697.525534] iwlwifi 0000:02:00.0: 0x00015910 | branchlink1
    [13697.525536] iwlwifi 0000:02:00.0: 0x00015910 | branchlink2
    [13697.525538] iwlwifi 0000:02:00.0: 0x0000DBEA | interruptlink1
    [13697.525540] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
    [13697.525542] iwlwifi 0000:02:00.0: 0x00002A0D | data1
    [13697.525544] iwlwifi 0000:02:00.0: 0x00000003 | data2
    [13697.525545] iwlwifi 0000:02:00.0: 0x000001DC | line
    [13697.525547] iwlwifi 0000:02:00.0: 0xD80020F4 | beacon time
    [13697.525549] iwlwifi 0000:02:00.0: 0xFB6A3F0C | tsf low
    [13697.525551] iwlwifi 0000:02:00.0: 0x00000002 | tsf hi
    [13697.525553] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
    [13697.525555] iwlwifi 0000:02:00.0: 0xA8485B00 | time gp2
    [13697.525556] iwlwifi 0000:02:00.0: 0x00000000 | time gp3
    [13697.525558] iwlwifi 0000:02:00.0: 0x754312A8 | uCode version
    [13697.525560] iwlwifi 0000:02:00.0: 0x000000B0 | hw version
    [13697.525562] iwlwifi 0000:02:00.0: 0x00480303 | board version
    [13697.525564] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
    [13697.525566] iwlwifi 0000:02:00.0: CSR values:
    [13697.525568] iwlwifi 0000:02:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
    [13697.525597] iwlwifi 0000:02:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303
    [13697.525623] iwlwifi 0000:02:00.0: CSR_INT_COALESCING: 0X0000ff40
    [13697.525649] iwlwifi 0000:02:00.0: CSR_INT: 0X00000000
    [13697.525678] iwlwifi 0000:02:00.0: CSR_INT_MASK: 0X00000000
    [13697.525703] iwlwifi 0000:02:00.0: CSR_FH_INT_STATUS: 0X00000000
    [13697.525732] iwlwifi 0000:02:00.0: CSR_GPIO_IN: 0X0000003c
    [13697.525761] iwlwifi 0000:02:00.0: CSR_RESET: 0X00000000
    [13697.525786] iwlwifi 0000:02:00.0: CSR_GP_CNTRL: 0X080403c5
    [13697.525812] iwlwifi 0000:02:00.0: CSR_HW_REV: 0X000000b0
    [13697.525837] iwlwifi 0000:02:00.0: CSR_EEPROM_REG: 0Xc6aa0ffd
    [13697.525863] iwlwifi 0000:02:00.0: CSR_EEPROM_GP: 0X90000801
    [13697.525888] iwlwifi 0000:02:00.0: CSR_OTP_GP_REG: 0X00030001
    [13697.525914] iwlwifi 0000:02:00.0: CSR_GIO_REG: 0X00080042
    [13697.525940] iwlwifi 0000:02:00.0: CSR_GP_UCODE_REG: 0X0000f65d
    [13697.525966] iwlwifi 0000:02:00.0: CSR_GP_DRIVER_REG: 0X00000000
    [13697.525992] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP1: 0X00000000
    [13697.526018] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP2: 0X00000000
    [13697.526043] iwlwifi 0000:02:00.0: CSR_LED_REG: 0X00000078
    [13697.526069] iwlwifi 0000:02:00.0: CSR_DRAM_INT_TBL_REG: 0X88035fcc
    [13697.526094] iwlwifi 0000:02:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
    [13697.526119] iwlwifi 0000:02:00.0: CSR_ANA_PLL_CFG: 0X00000000
    [13697.526145] iwlwifi 0000:02:00.0: CSR_HW_REV_WA_REG: 0X0001001a
    [13697.526171] iwlwifi 0000:02:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
    [13697.526174] iwlwifi 0000:02:00.0: FH register values:
    [13697.526228] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X028a6e00
    [13697.526280] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00289280
    [13697.526337] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000030
    [13697.526382] iwlwifi 0000:02:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
    [13697.526438] iwlwifi 0000:02:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
    [13697.526472] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
    [13697.526515] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
    [13697.526564] iwlwifi 0000:02:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
    [13697.526599] iwlwifi 0000:02:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
    [13697.526679] iwlwifi 0000:02:00.0: Start IWL Event Log Dump: nothing in log
    [13697.527366] ieee80211 phy0: Hardware restart was requested
    [13697.527524] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
    [13697.534249] iwlwifi 0000:02:00.0: Radio type=0x1-0x2-0x0
    [13864.112019] iwlwifi 0000:02:00.0: Tx aggregation enabled on ra = 4c:e6:76:a9:9e:f8 tid = 0
    [13864.112052] ------------[ cut here ]------------
    [13864.112121] WARNING: at /build/buildd/linux-3.2.0/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c:1111 iwl_trans_pcie_tx+0x70a/0x750 [iwlwifi]()
    [13864.112129] Hardware name: 700Z3A/700Z4A/700Z5A/700Z5B
    [13864.112132] Modules linked in: hidp hid samsung_laptop(O) dm_crypt snd_hda_codec_hdmi snd_hda_codec_realtek joydev fglrx(P) arc4 bnep rfcomm parport_pc snd_hda_intel ppdev snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq uvcvideo videodev mei(C) snd_timer snd_seq_device btusb psmouse bluetooth iwlwifi mac_hid serio_raw mac80211 snd cfg80211 soundcore snd_page_alloc binfmt_misc coretemp lp parport i915 drm_kms_helper drm r8169 i2c_algo_bit video
    [13864.112231] Pid: 30357, comm: kworker/u:1 Tainted: P C O 3.2.0-35-generic-pae #55-Ubuntu
    [13864.112237] Call Trace:
    [13864.112251] [<c1592027>] ? printk+0x2d/0x2f
    [13864.112266] [<c105a7d2>] warn_slowpath_common+0x72/0xa0
    [13864.112294] [<f941a39a>] ? iwl_trans_pcie_tx+0x70a/0x750 [iwlwifi]
    [13864.112318] [<f941a39a>] ? iwl_trans_pcie_tx+0x70a/0x750 [iwlwifi]
    [13864.112328] [<c105a822>] warn_slowpath_null+0x22/0x30
    [13864.112350] [<f941a39a>] iwl_trans_pcie_tx+0x70a/0x750 [iwlwifi]
    [13864.112359] [<c1054090>] ? try_to_wake_up+0x140/0x190
    [13864.112382] [<f9400375>] ? iwlagn_tx_cmd_build_hwcrypto.isra.12+0x145/0x190 [iwlwifi]
    [13864.112405] [<f940060b>] iwlagn_tx_skb+0x24b/0x450 [iwlwifi]
    [13864.112427] [<f93f7f31>] iwlagn_mac_tx+0xc1/0x130 [iwlwifi]
    [13864.112469] [<f93a8ec4>] __ieee80211_tx+0x64/0x1d0 [mac80211]
    [13864.112504] [<f93aa47e>] ieee80211_tx+0x7e/0xb0 [mac80211]
    [13864.112538] [<f93ab144>] ieee80211_tx_pending+0x74/0x1f0 [mac80211]
    [13864.112548] [<c1061440>] ? local_bh_enable_ip+0x90/0x90
    [13864.112556] [<c1060f63>] tasklet_action+0x63/0x110
    [13864.112564] [<c1061440>] ? local_bh_enable_ip+0x90/0x90
    [13864.112571] [<c10614c1>] __do_softirq+0x81/0x1a0
    [13864.112580] [<c1061440>] ? local_bh_enable_ip+0x90/0x90
    [13864.112584] <IRQ> [<c1061429>] ? local_bh_enable_ip+0x79/0x90
    [13864.112602] [<c15a7f16>] ? _raw_spin_unlock_bh+0x16/0x20
    [13864.112632] [<f9392eef>] ? ieee80211_agg_tx_operational+0xbf/0x180 [mac80211]
    [13864.112643] [<c11335ea>] ? kmem_cache_free+0xea/0x100
    [13864.112653] [<c14a1c2e>] ? kfree_skbmem+0x2e/0x80
    [13864.112681] [<f9393514>] ? ieee80211_start_tx_ba_cb+0xf4/0x120 [mac80211]
    [13864.112713] [<f939d2ef>] ? ieee80211_iface_work+0x20f/0x310 [mac80211]
    [13864.112723] [<c1074f51>] ? process_one_work+0x101/0x3a0
    [13864.112752] [<f939d0e0>] ? ieee80211_teardown_sdata+0xc0/0xc0 [mac80211]
    [13864.112760] [<c1075a24>] ? worker_thread+0x124/0x2d0
    [13864.112768] [<c1075900>] ? manage_workers.isra.29+0x110/0x110
    [13864.112777] [<c107987d>] ? kthread+0x6d/0x80
    [13864.112786] [<c1079810>] ? flush_kthread_worker+0x80/0x80
    [13864.112796] [<c15af7be>] ? kernel_thread_helper+0x6/0x10
    [13864.112802] ---[ end trace 38b47fecba92476d ]---
    --------------------------------------------------------------------------

    at this point my ability to surf the net,skype,messengers all dissconnect, if i open a terminal at that time and type ping www.google.com, the terminal just hangs there and says eventually that the host is unreachable.
    sometimes it fixes it's self, and sometimes it dosen't and i have to reboot the laptop.

    is there anyone that can help?

    thank you.
    in a world without walls, who needs windows?

  2. #2
    Join Date
    Dec 2012
    Beans
    2

    Re: random wireles network drop.

    What kind of router do you have?

  3. #3
    Join Date
    Jul 2006
    Location
    Castrum, Germania Secunda
    Beans
    1,071

    Re: random wireles network drop.

    Try this:
    https://sites.google.com/site/easyli...ess-connection
    (item 2 and further, right column)
    Tips, tweaks and how-to's for Ubuntu and Mint:
    http://sites.google.com/site/easylinuxtipsproject
    In for a pleasant surprise? Give Xubuntu a try:
    http://sites.google.com/site/easylin...roject/xubuntu

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