Public bug reported:
I have connected well from my laptop with other networks until now, I
think could be a recent software update, but when I try to connect to
wifi network, some weird happens, the wifi connection is stablished, but
the IP connection goes down. After a while, If I try to reconnect the
wifi, switching down and up the interface, the connection has made and
IP connection get up, but this is temporary. In the logs I got
something like a firmware bug, this is the output of kern.log:
Nov 21 18:08:29 pegaso kernel: [28289.520818] wlan0: deauthenticating from
c8:aa:21:63:1a:71 by local choice (reason=3)
Nov 21 18:08:29 pegaso kernel: [28289.649685] cfg80211: All devices are
disconnected, going to restore regulatory settings
Nov 21 18:08:29 pegaso kernel: [28289.649690] cfg80211: Restoring regulatory
settings
Nov 21 18:08:29 pegaso kernel: [28289.649694] cfg80211: Calling CRDA to update
world regulatory domain
Nov 21 18:08:29 pegaso kernel: [28289.656371] cfg80211: Ignoring regulatory
request Set by core since the driver uses its own custom regulatory domain
Nov 21 18:08:29 pegaso kernel: [28289.656375] cfg80211: World regulatory domain
updated:
Nov 21 18:08:29 pegaso kernel: [28289.656377] cfg80211: (start_freq -
end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Nov 21 18:08:29 pegaso kernel: [28289.656380] cfg80211: (2402000 KHz -
2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Nov 21 18:08:29 pegaso kernel: [28289.656382] cfg80211: (2457000 KHz -
2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Nov 21 18:08:29 pegaso kernel: [28289.656385] cfg80211: (2474000 KHz -
2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Nov 21 18:08:29 pegaso kernel: [28289.656387] cfg80211: (5170000 KHz -
5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Nov 21 18:08:29 pegaso kernel: [28289.656389] cfg80211: (5735000 KHz -
5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Nov 21 18:08:30 pegaso kernel: [28290.205625] wlan0: authenticate with
08:3e:8e:5b:43:f6 (try 1)
Nov 21 18:08:30 pegaso kernel: [28290.208359] wlan0: authenticated
Nov 21 18:08:30 pegaso kernel: [28290.213259] wlan0: associate with
08:3e:8e:5b:43:f6 (try 1)
Nov 21 18:08:30 pegaso kernel: [28290.218025] wlan0: RX AssocResp from
08:3e:8e:5b:43:f6 (capab=0x411 status=0 aid=1)
Nov 21 18:08:30 pegaso kernel: [28290.218028] wlan0: associated
Nov 21 18:08:34 pegaso kernel: [28294.905201] iwlwifi 0000:09:00.0: Tx
aggregation enabled on ra = 08:3e:8e:5b:43:f6 tid = 0
Nov 21 18:08:41 pegaso kernel: [28301.131672] wlan0: no IPv6 routers present
Nov 21 18:08:47 pegaso kernel: [28307.896684] iwlwifi 0000:09:00.0: Microcode
SW error detected. Restarting 0x82000000.
Nov 21 18:08:47 pegaso kernel: [28307.896688] iwlwifi 0000:09:00.0: Loaded
firmware version: 18.168.6.1
Nov 21 18:08:47 pegaso kernel: [28307.896779] iwlwifi 0000:09:00.0: Start IWL
Error Log Dump:
Nov 21 18:08:47 pegaso kernel: [28307.896781] iwlwifi 0000:09:00.0: Status:
0x000412E4, count: 6
Nov 21 18:08:47 pegaso kernel: [28307.896783] iwlwifi 0000:09:00.0: 0x00000EDC
| ADVANCED_SYSASSERT
Nov 21 18:08:47 pegaso kernel: [28307.896784] iwlwifi 0000:09:00.0: 0x000233B0
| uPc
Nov 21 18:08:47 pegaso kernel: [28307.896786] iwlwifi 0000:09:00.0: 0x00023360
| branchlink1
Nov 21 18:08:47 pegaso kernel: [28307.896787] iwlwifi 0000:09:00.0: 0x00023360
| branchlink2
Nov 21 18:08:47 pegaso kernel: [28307.896788] iwlwifi 0000:09:00.0: 0x0000DBEA
| interruptlink1
Nov 21 18:08:47 pegaso kernel: [28307.896790] iwlwifi 0000:09:00.0: 0x00000000
| interruptlink2
Nov 21 18:08:47 pegaso kernel: [28307.896791] iwlwifi 0000:09:00.0: 0x0A080101
| data1
Nov 21 18:08:47 pegaso kernel: [28307.896793] iwlwifi 0000:09:00.0: 0xDBE56A00
| data2
Nov 21 18:08:47 pegaso kernel: [28307.896794] iwlwifi 0000:09:00.0: 0x00000AF4
| line
Nov 21 18:08:47 pegaso kernel: [28307.896795] iwlwifi 0000:09:00.0: 0x2B409D87
| beacon time
Nov 21 18:08:47 pegaso kernel: [28307.896796] iwlwifi 0000:09:00.0: 0x6894B279
| tsf low
Nov 21 18:08:47 pegaso kernel: [28307.896798] iwlwifi 0000:09:00.0: 0x00000002
| tsf hi
Nov 21 18:08:47 pegaso kernel: [28307.896799] iwlwifi 0000:09:00.0: 0x00000000
| time gp1
Nov 21 18:08:47 pegaso kernel: [28307.896800] iwlwifi 0000:09:00.0: 0x16FDD2C5
| time gp2
Nov 21 18:08:47 pegaso kernel: [28307.896802] iwlwifi 0000:09:00.0: 0x00000000
| time gp3
Nov 21 18:08:47 pegaso kernel: [28307.896803] iwlwifi 0000:09:00.0: 0x754312A8
| uCode version
Nov 21 18:08:47 pegaso kernel: [28307.896804] iwlwifi 0000:09:00.0: 0x000000B0
| hw version
Nov 21 18:08:47 pegaso kernel: [28307.896806] iwlwifi 0000:09:00.0: 0x00880303
| board version
Nov 21 18:08:47 pegaso kernel: [28307.896807] iwlwifi 0000:09:00.0: 0xDBE56A00
| hcmd
Nov 21 18:08:47 pegaso kernel: [28307.896808] iwlwifi 0000:09:00.0: CSR values:
Nov 21 18:08:47 pegaso kernel: [28307.896810] iwlwifi 0000:09:00.0: (2nd byte
of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
Nov 21 18:08:47 pegaso kernel: [28307.896815] iwlwifi 0000:09:00.0:
CSR_HW_IF_CONFIG_REG: 0X00880303
Nov 21 18:08:47 pegaso kernel: [28307.896820] iwlwifi 0000:09:00.0:
CSR_INT_COALESCING: 0X0000ff40
Nov 21 18:08:47 pegaso kernel: [28307.896825] iwlwifi 0000:09:00.0:
CSR_INT: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896831] iwlwifi 0000:09:00.0:
CSR_INT_MASK: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896836] iwlwifi 0000:09:00.0:
CSR_FH_INT_STATUS: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896841] iwlwifi 0000:09:00.0:
CSR_GPIO_IN: 0X0000003c
Nov 21 18:08:47 pegaso kernel: [28307.896846] iwlwifi 0000:09:00.0:
CSR_RESET: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896851] iwlwifi 0000:09:00.0:
CSR_GP_CNTRL: 0X080403c5
Nov 21 18:08:47 pegaso kernel: [28307.896856] iwlwifi 0000:09:00.0:
CSR_HW_REV: 0X000000b0
Nov 21 18:08:47 pegaso kernel: [28307.896861] iwlwifi 0000:09:00.0:
CSR_EEPROM_REG: 0X64320ffd
Nov 21 18:08:47 pegaso kernel: [28307.896867] iwlwifi 0000:09:00.0:
CSR_EEPROM_GP: 0X90000801
Nov 21 18:08:47 pegaso kernel: [28307.896872] iwlwifi 0000:09:00.0:
CSR_OTP_GP_REG: 0X00030001
Nov 21 18:08:47 pegaso kernel: [28307.896877] iwlwifi 0000:09:00.0:
CSR_GIO_REG: 0X00080044
Nov 21 18:08:47 pegaso kernel: [28307.896882] iwlwifi 0000:09:00.0:
CSR_GP_UCODE_REG: 0X0000b7b5
Nov 21 18:08:47 pegaso kernel: [28307.896887] iwlwifi 0000:09:00.0:
CSR_GP_DRIVER_REG: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896892] iwlwifi 0000:09:00.0:
CSR_UCODE_DRV_GP1: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896897] iwlwifi 0000:09:00.0:
CSR_UCODE_DRV_GP2: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896903] iwlwifi 0000:09:00.0:
CSR_LED_REG: 0X00000078
Nov 21 18:08:47 pegaso kernel: [28307.896908] iwlwifi 0000:09:00.0:
CSR_DRAM_INT_TBL_REG: 0X88183659
Nov 21 18:08:47 pegaso kernel: [28307.896913] iwlwifi 0000:09:00.0:
CSR_GIO_CHICKEN_BITS: 0X27800200
Nov 21 18:08:47 pegaso kernel: [28307.896918] iwlwifi 0000:09:00.0:
CSR_ANA_PLL_CFG: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.896923] iwlwifi 0000:09:00.0:
CSR_HW_REV_WA_REG: 0X0001001a
Nov 21 18:08:47 pegaso kernel: [28307.896928] iwlwifi 0000:09:00.0:
CSR_DBG_HPET_MEM_REG: 0Xffff0000
Nov 21 18:08:47 pegaso kernel: [28307.896930] iwlwifi 0000:09:00.0: FH register
values:
Nov 21 18:08:47 pegaso kernel: [28307.896945] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X18372600
Nov 21 18:08:47 pegaso kernel: [28307.896961] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0181db00
Nov 21 18:08:47 pegaso kernel: [28307.896977] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_WPTR: 0X000000d0
Nov 21 18:08:47 pegaso kernel: [28307.896992] iwlwifi 0000:09:00.0:
FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
Nov 21 18:08:47 pegaso kernel: [28307.897008] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
Nov 21 18:08:47 pegaso kernel: [28307.897023] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
Nov 21 18:08:47 pegaso kernel: [28307.897039] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.897055] iwlwifi 0000:09:00.0:
FH_TSSR_TX_STATUS_REG: 0X07ff0001
Nov 21 18:08:47 pegaso kernel: [28307.897070] iwlwifi 0000:09:00.0:
FH_TSSR_TX_ERROR_REG: 0X00000000
Nov 21 18:08:47 pegaso kernel: [28307.897133] iwlwifi 0000:09:00.0: Start IWL
Event Log Dump: nothing in log
Nov 21 18:08:47 pegaso kernel: [28307.897469] ieee80211 phy0: Hardware restart
was requested
Nov 21 18:08:47 pegaso kernel: [28307.897506] iwlwifi 0000:09:00.0: L1
Disabled; Enabling L0S
Nov 21 18:08:48 pegaso kernel: [28307.904067] iwlwifi 0000:09:00.0: Radio
type=0x2-0x2-0x1
Nov 21 18:08:48 pegaso kernel: [28308.449143] iwlwifi 0000:09:00.0: Tx
aggregation enabled on ra = 08:3e:8e:5b:43:f6 tid = 0
Nov 21 18:08:54 pegaso kernel: [28314.322170] iwlwifi 0000:09:00.0: Microcode
SW error detected. Restarting 0x2000000.
Nov 21 18:08:54 pegaso kernel: [28314.322174] iwlwifi 0000:09:00.0: Loaded
firmware version: 18.168.6.1
Nov 21 18:08:54 pegaso kernel: [28314.322266] iwlwifi 0000:09:00.0: Start IWL
Error Log Dump:
Nov 21 18:08:54 pegaso kernel: [28314.322268] iwlwifi 0000:09:00.0: Status:
0x000412E4, count: 6
Nov 21 18:08:54 pegaso kernel: [28314.322271] iwlwifi 0000:09:00.0: 0x00000034
| NMI_INTERRUPT_WDG
Nov 21 18:08:54 pegaso kernel: [28314.322272] iwlwifi 0000:09:00.0: 0x00010564
| uPc
Nov 21 18:08:54 pegaso kernel: [28314.322274] iwlwifi 0000:09:00.0: 0x0001054E
| branchlink1
Nov 21 18:08:54 pegaso kernel: [28314.322275] iwlwifi 0000:09:00.0: 0x00010580
| branchlink2
Nov 21 18:08:54 pegaso kernel: [28314.322277] iwlwifi 0000:09:00.0: 0x0000DBEA
| interruptlink1
Nov 21 18:08:54 pegaso kernel: [28314.322278] iwlwifi 0000:09:00.0: 0x0001BA02
| interruptlink2
Nov 21 18:08:54 pegaso kernel: [28314.322280] iwlwifi 0000:09:00.0: 0x00000002
| data1
Nov 21 18:08:54 pegaso kernel: [28314.322281] iwlwifi 0000:09:00.0: 0x07030000
| data2
Nov 21 18:08:54 pegaso kernel: [28314.322282] iwlwifi 0000:09:00.0: 0x0000ECD8
| line
Nov 21 18:08:54 pegaso kernel: [28314.322284] iwlwifi 0000:09:00.0: 0x0F80F4F2
| beacon time
Nov 21 18:08:54 pegaso kernel: [28314.322285] iwlwifi 0000:09:00.0: 0x68F6CB0E
| tsf low
Nov 21 18:08:54 pegaso kernel: [28314.322287] iwlwifi 0000:09:00.0: 0x00000002
| tsf hi
Nov 21 18:08:54 pegaso kernel: [28314.322288] iwlwifi 0000:09:00.0: 0x00000000
| time gp1
Nov 21 18:08:54 pegaso kernel: [28314.322290] iwlwifi 0000:09:00.0: 0x0061DFD1
| time gp2
Nov 21 18:08:54 pegaso kernel: [28314.322291] iwlwifi 0000:09:00.0: 0x00000000
| time gp3
Nov 21 18:08:54 pegaso kernel: [28314.322292] iwlwifi 0000:09:00.0: 0x754312A8
| uCode version
Nov 21 18:08:54 pegaso kernel: [28314.322294] iwlwifi 0000:09:00.0: 0x000000B0
| hw version
Nov 21 18:08:54 pegaso kernel: [28314.322295] iwlwifi 0000:09:00.0: 0x00880303
| board version
Nov 21 18:08:54 pegaso kernel: [28314.322297] iwlwifi 0000:09:00.0: 0x0BD4001C
| hcmd
Nov 21 18:08:54 pegaso kernel: [28314.322298] iwlwifi 0000:09:00.0: CSR values:
Nov 21 18:08:54 pegaso kernel: [28314.322300] iwlwifi 0000:09:00.0: (2nd byte
of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
Nov 21 18:08:54 pegaso kernel: [28314.322306] iwlwifi 0000:09:00.0:
CSR_HW_IF_CONFIG_REG: 0X00880303
Nov 21 18:08:54 pegaso kernel: [28314.322311] iwlwifi 0000:09:00.0:
CSR_INT_COALESCING: 0X00000040
Nov 21 18:08:54 pegaso kernel: [28314.322317] iwlwifi 0000:09:00.0:
CSR_INT: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322322] iwlwifi 0000:09:00.0:
CSR_INT_MASK: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322327] iwlwifi 0000:09:00.0:
CSR_FH_INT_STATUS: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322333] iwlwifi 0000:09:00.0:
CSR_GPIO_IN: 0X0000003c
Nov 21 18:08:54 pegaso kernel: [28314.322338] iwlwifi 0000:09:00.0:
CSR_RESET: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322343] iwlwifi 0000:09:00.0:
CSR_GP_CNTRL: 0X080403c5
Nov 21 18:08:54 pegaso kernel: [28314.322348] iwlwifi 0000:09:00.0:
CSR_HW_REV: 0X000000b0
Nov 21 18:08:54 pegaso kernel: [28314.322354] iwlwifi 0000:09:00.0:
CSR_EEPROM_REG: 0X64320ffd
Nov 21 18:08:54 pegaso kernel: [28314.322359] iwlwifi 0000:09:00.0:
CSR_EEPROM_GP: 0X90000801
Nov 21 18:08:54 pegaso kernel: [28314.322364] iwlwifi 0000:09:00.0:
CSR_OTP_GP_REG: 0X00030001
Nov 21 18:08:54 pegaso kernel: [28314.322370] iwlwifi 0000:09:00.0:
CSR_GIO_REG: 0X00080044
Nov 21 18:08:54 pegaso kernel: [28314.322375] iwlwifi 0000:09:00.0:
CSR_GP_UCODE_REG: 0X00001573
Nov 21 18:08:54 pegaso kernel: [28314.322380] iwlwifi 0000:09:00.0:
CSR_GP_DRIVER_REG: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322386] iwlwifi 0000:09:00.0:
CSR_UCODE_DRV_GP1: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322391] iwlwifi 0000:09:00.0:
CSR_UCODE_DRV_GP2: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322396] iwlwifi 0000:09:00.0:
CSR_LED_REG: 0X00000078
Nov 21 18:08:54 pegaso kernel: [28314.322401] iwlwifi 0000:09:00.0:
CSR_DRAM_INT_TBL_REG: 0X88183659
Nov 21 18:08:54 pegaso kernel: [28314.322406] iwlwifi 0000:09:00.0:
CSR_GIO_CHICKEN_BITS: 0X27800200
Nov 21 18:08:54 pegaso kernel: [28314.322412] iwlwifi 0000:09:00.0:
CSR_ANA_PLL_CFG: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322418] iwlwifi 0000:09:00.0:
CSR_HW_REV_WA_REG: 0X0001001a
Nov 21 18:08:54 pegaso kernel: [28314.322424] iwlwifi 0000:09:00.0:
CSR_DBG_HPET_MEM_REG: 0Xffff0000
Nov 21 18:08:54 pegaso kernel: [28314.322427] iwlwifi 0000:09:00.0: FH register
values:
Nov 21 18:08:54 pegaso kernel: [28314.322444] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X18372600
Nov 21 18:08:54 pegaso kernel: [28314.322460] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0181db00
Nov 21 18:08:54 pegaso kernel: [28314.322477] iwlwifi 0000:09:00.0:
FH_RSCSR_CHNL0_WPTR: 0X00000030
Nov 21 18:08:54 pegaso kernel: [28314.322494] iwlwifi 0000:09:00.0:
FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X00819104
Nov 21 18:08:54 pegaso kernel: [28314.322511] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
Nov 21 18:08:54 pegaso kernel: [28314.322527] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
Nov 21 18:08:54 pegaso kernel: [28314.322544] iwlwifi 0000:09:00.0:
FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322561] iwlwifi 0000:09:00.0:
FH_TSSR_TX_STATUS_REG: 0X07ff0001
Nov 21 18:08:54 pegaso kernel: [28314.322578] iwlwifi 0000:09:00.0:
FH_TSSR_TX_ERROR_REG: 0X00000000
Nov 21 18:08:54 pegaso kernel: [28314.322644] iwlwifi 0000:09:00.0: Start IWL
Event Log Dump: display last 1 entries
Nov 21 18:08:54 pegaso kernel: [28314.322665] iwlwifi 0000:09:00.0:
EVT_LOGT:0006414285:0x0000010c:0123
Nov 21 18:08:54 pegaso kernel: [28314.322988] ieee80211 phy0: Hardware restart
was requested
Nov 21 18:08:54 pegaso kernel: [28314.323027] iwlwifi 0000:09:00.0: L1
Disabled; Enabling L0S
Nov 21 18:08:54 pegaso kernel: [28314.329604] iwlwifi 0000:09:00.0: Radio
type=0x2-0x2-0x1
I have a laptop dell vostro 3550, with ubuntu 12.04.1 LTS 64bit, 6GB RAM, intel
core i5.
lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04
apt-cache policy linux-firmware
linux-firmware:
Instalados: 1.79.1
Candidato: 1.79.1
Tabla de versión:
*** 1.79.1 0
500 http://co.archive.ubuntu.com/ubuntu/ precise-updates/main amd64
Packages
100 /var/lib/dpkg/status
1.79 0
500 http://co.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
apt-cache policy wireless-tools
wireless-tools:
Instalados: 30~pre9-5ubuntu2
Candidato: 30~pre9-5ubuntu2
Tabla de versión:
*** 30~pre9-5ubuntu2 0
500 http://co.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
100 /var/lib/dpkg/status
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: dell driver firmware laptop network wireless
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https://bugs.launchpad.net/bugs/1082035
Title:
Dell laptop 3550 wifi connects a few seconds and after that IP
connection goes down
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