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Thread: netbook crash connecting wifi

  1. #1
    Join Date
    Nov 2010
    Beans
    27
    Distro
    Ubuntu 10.10 Maverick Meerkat

    netbook crash connecting wifi

    Hello,

    Just installed ubuntu 11.04 and it all works fine. However, I got a big problem. When I unplug my ethernet cable and turn on my wifi my pc freezes?

    All updates are done and there are no drivers. I'm using die eeepc 1001px.

    Someone who can help me with this? A netbook isn't usefull without a wifi connection

    ~Tijs

    p.s. sorry for bad english.

  2. #2
    Join Date
    Apr 2011
    Beans
    16
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: netbook crash connecting wifi

    This happens to me too.

    But only if I try to connect to an hidden network.

    I have an Asus EEEpc 1001P. Is this problem related to Atheros Wireless Network Adpater? It seems that the most people that have this problem are trying to install Ubuntu on Netbooks with that Wireless card.

    On Ubuntu 10.04 that was not suported. They fixed that on 10.10. Now on 11.04 the computer crash and sometimes appear a lot of lines (I think is a Kernel Panic).

    If I access a WPA/WPA2 network that's ok. But if I access my wireless network (Hidden Network, WPA2 Personal) it freezes. In my faculty, when I try to connect to the Network (Hiden, WPA2 Enterprise) it freezes to, and sometimes the Kernel Panic.


    Can someone help? I really want to install 11.04 on my netbook.

  3. #3
    Join Date
    Apr 2011
    Beans
    16
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: netbook crash connecting wifi

    Just a little more information about the problem.

    I also installed the same ISO of Ubuntu 11.04 on my Toshiba Notebook. I tried to connect to the same hidden network that crashed my netbook and it connected fine.

    I'm, at the moment, sending this message by the Wireless that I cannot connect on my Netbook, so the problem is not of my router.



    Thank you for any help.

    --
    AM

  4. #4
    Join Date
    Apr 2011
    Beans
    3

    Re: netbook crash connecting wifi

    I also have major problems regarding wireless connections on my eeepc 1001P netbook.

    The problem has manifested in three different ways. When using 11.04 in the live cd environment on a usb stick, attempts to connect to my network result in a kernel panic right away.

    When 11.04 is installed and updated, attempts to connect to the network result in CPU usage shooting up to 100%, and the system hangs about a second later. The only way to get out of this is to force the netbook off by holding down the power button.

    Randomly upon boot up, the networking panel applet doesn't appear, and there is terrible system-wide performance. Even the mouse movement is lagged. This leads to an eventual system hang, which again requires a forced shutdown with the power button.

    Thankfully, the wired connection works without issue, so there is hope to get updates and internet connectivity that way. However, there's no doubt that there must be something terribly wrong with the atheros driver or something else related to networking. Wifi worked flawlessly out of the box in 10.10.

  5. #5
    Join Date
    Apr 2011
    Beans
    16
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: netbook crash connecting wifi

    More information.

    I tried to install the drivers with ndiswrapper. Now every time I tried to connect a Kernel Panic appears.

    Also I tried the Kubuntu 11.04 and the same thing happens there. When I try to connect it freezes.

    So the problem is again with the Atheros. Why Ubuntu don't like this little Atheros?


    ---
    AM

  6. #6
    Join Date
    Apr 2011
    Beans
    3

    Re: netbook crash connecting wifi

    Here's some info I could get from kern.log.

    This is what happens when I toggle the wireless switch (function+f2) which enables wireless and makes it automatically connect to my access point:

    Code:
    [   42.031913] wlan0: authenticate with 00:18:f8:b1:e0:1e (try 1)
    [   42.034761] wlan0: authenticated
    [   42.052993] wlan0: associate with 00:18:f8:b1:e0:1e (try 1)
    [   42.055860] wlan0: RX AssocResp from 00:18:f8:b1:e0:1e (capab=0x401 status=0 aid=1)
    [   42.055871] wlan0: associated
    [   42.056999] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [   42.064111] BUG: unable to handle kernel NULL pointer dereference at   (null)
    [   42.064316] IP: [<f8453f2d>] ath_tx_start_dma+0xdd/0x130 [ath9k]
    [   42.064484] *pde = 33bc9067 *pte = 00000000 
    [   42.064609] Oops: 0000 [#1] SMP 
    [   42.064704] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
    [   42.064880] Modules linked in: parport_pc ppdev snd_hda_codec_realtek arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath9k i915 snd_seq_midi snd_rawmidi binfmt_misc snd_seq_midi_event eeepc_wmi joydev snd_seq sparse_keymap mac80211 snd_timer drm_kms_helper snd_seq_device uvcvideo ath9k_common ath9k_hw snd ath drm videodev cfg80211 psmouse serio_raw soundcore snd_page_alloc i2c_algo_bit video lp parport ahci libahci atl1c
    [   42.066153] 
    [   42.066202] Pid: 1237, comm: compiz Not tainted 2.6.38-8-generic #42-Ubuntu ASUSTeK Computer INC. 1001P/1005P
    [   42.066482] EIP: 0060:[<f8453f2d>] EFLAGS: 00010246 CPU: 1
    [   42.066629] EIP is at ath_tx_start_dma+0xdd/0x130 [ath9k]
    [   42.066763] EAX: 00000000 EBX: f54cdc04 ECX: ee6ca250 EDX: ef4f9c94
    [   42.066916] ESI: ef520750 EDI: ec264c00 EBP: f54cdbc4 ESP: f54cdb9c
    [   42.067069]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
    [   42.067206] Process compiz (pid: 1237, ti=f54cc000 task=f4f09940 task.ti=ec050000)
    [   42.067391] Stack:
    [   42.067448]  00000002 00000000 ee6cb82c ef4f9234 ee6ca254 ef4fc000 ef510e10 ef4f9ca4
    [   42.067713]  ef520750 00000002 f54cdbf0 f8455117 00000072 00000002 ef4f9c94 ef4f9234
    [   42.067975]  00000072 f54cdc04 ef4f82c0 ef4f9234 ec264c00 f54cdc24 f844dd4f 0000006b
    What follows is an enormous list of call traces, which I believe loops until the computer is forced off. Here are a few selections of lines involving ath9k:

    Code:
    [   42.068015]  [<f8455117>] ath_tx_start+0x137/0x180 [ath9k]
    [   42.068015]  [<f844dd4f>] ath9k_tx+0x8f/0x150 [ath9k]
    [   42.069173]  [<f8248a39>] ? ath_hw_cycle_counters_update+0xc9/0x120 [ath]
    [   42.069173] EIP: [<f8453f2d>] ath_tx_start_dma+0xdd/0x130 [ath9k] SS:ESP 0068:f54cdb9c
    [   42.066482] EIP: 0060:[<f8453f2d>] EFLAGS: 00010246 CPU: 1
    [   42.066629] EIP is at ath_tx_start_dma+0xdd/0x130 [ath9k]
    I'll be happy to supply more, though I'm not sure what exactly is relevant.

  7. #7
    Join Date
    Apr 2011
    Beans
    1

    Re: netbook crash connecting wifi

    I can confirm this. Connecting to a wifi network on 1001PX produces a kernel panic. Not good for such a popular machine.

    Quote Originally Posted by Tijssiej View Post
    Hello,

    Just installed ubuntu 11.04 and it all works fine. However, I got a big problem. When I unplug my ethernet cable and turn on my wifi my pc freezes?

    All updates are done and there are no drivers. I'm using die eeepc 1001px.

    Someone who can help me with this? A netbook isn't usefull without a wifi connection

    ~Tijs

    p.s. sorry for bad english.

  8. #8
    Join Date
    Apr 2007
    Beans
    Hidden!

    Re: netbook crash connecting wifi

    Confirming this on Asus Eee PC 1001PX, AR2427 network adapter. Hope this bug gets a very high priority...

    Quote Originally Posted by acuk View Post
    I can confirm this. Connecting to a wifi network on 1001PX produces a kernel panic. Not good for such a popular machine.

  9. #9
    Join Date
    Oct 2005
    Beans
    8

    Re: netbook crash connecting wifi

    this is also happening to me w/ my broadcom based acer ao-522. (amd fusion c-30)

  10. #10
    Join Date
    Apr 2011
    Beans
    4

    Re: netbook crash connecting wifi

    hi this is also happening to me.
    I am using a HP2133 with Broadcom STA wireless driver BCM 4312 (Rev 1.0)

    I upgraded to 11.04 and my system hangs if I connect to a wireless network.
    LAN appears to work fine though.

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