Try to solve the problem that Ubuntu crashes when the wireless network is not connected.

Recently used ubuntu12.10 book is Acer AS4750G-2452G50Mnkk. Wireless Nic crashes. The system crashes from time to time, and the mouse and keyboard are all invalid. It hurts the book and can only be hard shut down.

The following error is reported:

Jul 10 12:05:26 wulong kernel: [  710.137443] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffffJul 10 12:05:26 wulong kernel: [  710.137484] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX upJul 10 12:05:26 wulong kernel: [  710.204606] ath: phy0: Failed to stop TX DMA, queues=0x10f!Jul 10 12:05:26 wulong kernel: [  710.321712] ath: phy0: Chip reset failedJul 10 12:05:26 wulong kernel: [  710.321720] ath: phy0: Unable to reset channel, reset status -22Jul 10 12:05:26 wulong kernel: [  710.321767] ath: phy0: Unable to set channelJul 10 12:05:26 wulong kernel: [  710.335351] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffffJul 10 12:05:26 wulong kernel: [  710.335388] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX upJul 10 12:05:27 wulong kernel: [  710.402405] ath: phy0: Failed to stop TX DMA, queues=0x10f!Jul 10 12:05:27 wulong kernel: [  710.520024] ath: phy0: Chip reset failed

Solution:

Method 1: Install compat-Wireless

: Http://drvbp1.linux-foundation.org /~ Mcgrof/REL-html/backports/

I download compat-drivers-3.7.9-1.tar.bz2,

Extract
# Tar-xjvf compat-drivers-3.7.9-1.tar.bz2

Go:
# Cd compat-drivers-3.7.9-1
Compile
# Make

Install
# Make install

The installation result is
Running IWL-enable iwlagn...
2 iwl4965 modules found we'll disable all of them
Disabling iwl4965 (1)... [Error] module is still being detected:
Kernel/Drivers/NET/wireless/iwlegacy/iwl4965.ko
Disabling iwl4965 (2)... [OK]
Module disabled:
Kernel/Drivers/NET/wireless/iwlegacy/iwl4965.ko
Depmod will prefer updates/over kernel/-- OK!

Now run:

Sudo make unload to unload all: Wireless, Bluetooth and Ethernet modules
Sudo make wlunload to unload wireless modules
Sudo make btunload to unload Bluetooth modules

Run sudo modprobe driver-name to load your desired driver.
If unsure reboot.

Root @ Wulong:/home/Wulong/downloads/compat-drivers-3.7.9-1 #

Confused.

# Apt-Get update

# Apt-Get upgrade

When writing this text, the machine crashes twice. Pretty bad. When someone asked me on the Internet, some of the following installation forces Xiao Bai to answer: "The crash depends on people. It's not because Linux is not easy to use, but because people are unable to use their skills and they need to be transferred." The attacker. The system crashes after it is installed. This indicates that the Ubuntu version of Linux is indeed faulty. Is this related to the capability? It is to use Linux to develop other products, not to make it difficult for Linux. Although I am using this item, it is easy to use and stable. Ubuntu and Fedora are far from windows.