Folks, I had the same issue with my laptop after I installed the restricted drivers on my Gutsy "Firmware fro Broadcom 43xx chipset family" in an attempt to set up my wireless network. I did try to follow all the instructions from the forum using ndiswrapper with 64bit Windows Vista driver but still not able to make it. However this also enabled me to find a bug ksoftirqd/1 eating up 100% cpu. The moment I uninstall the above said driver, my machine started acting normally. Here is my machine configuration: Compaq Presario V3414AU AMD Turion(tm) 64 X2 1GB SD RAM Nvidia family of Video card Broadcomm wireless Altec Lansing sound card/speaker I'm still not able to make my wireless working on the Ubuntu 7.10, Though my sound, Video, Avant, Emerald, Compiz are working smoothly with Wired network interface. I appreciate if any one here have similar issue and solution for the same. Prior to uninstalling the firmware, I have seen these logs in my dmesg: [ 686.251840] printk: 319404 messages suppressed. [ 686.251847] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR [ 691.249198] printk: 317752 messages suppressed. [ 691.249204] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR [ 696.246554] printk: 316879 messages suppressed. [ 696.246560] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR [ 701.243901] printk: 318933 messages suppressed. [ 701.243907] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR [ 706.241256] printk: 312110 messages suppressed. [ 706.241265] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR [ 711.238621] printk: 311656 messages suppressed. [ 711.238630] bcm43xx: FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR And the out put of lsof looked like this: siva@siva-laptop:~$ lsof|more COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME init 1 root cwd unknown /proc/1/cwd (readlink: Permission denied) init 1 root rtd unknown /proc/1/root (readlink: Permission denied) init 1 root txt unknown /proc/1/exe (readlink: Permission denied) init 1 root NOFD /proc/1/fd (opendir: Permission denied) kthreadd 2 root cwd unknown /proc/2/cwd (readlink: Permission denied) kthreadd 2 root rtd unknown /proc/2/root (readlink: Permission denied) kthreadd 2 root txt unknown /proc/2/exe (readlink: Permission denied) kthreadd 2 root NOFD /proc/2/fd (opendir: Permission denied) migration 3 root cwd unknown /proc/3/cwd (readlink: Permission denied) migration 3 root rtd unknown /proc/3/root (readlink: Permission denied) migration 3 root txt unknown /proc/3/exe (readlink: Permission denied) migration 3 root NOFD /proc/3/fd (opendir: Permission denied) ksoftirqd 4 root cwd unknown /proc/4/cwd (readlink: Permission denied) ksoftirqd 4 root rtd unknown /proc/4/root (readlink: Permission denied) ksoftirqd 4 root txt unknown /proc/4/exe (readlink: Permission denied) ksoftirqd 4 root NOFD /proc/4/fd (opendir: Permission denied) watchdog/ 5 root cwd unknown /proc/5/cwd (readlink: Permission denied) watchdog/ 5 root rtd unknown /proc/5/root (readlink: Permission denied) watchdog/ 5 root txt unknown /proc/5/exe (readlink: Permission denied) watchdog/ 5 root NOFD /proc/5/fd (opendir: Permission denied) migration 6 root cwd unknown /proc/6/cwd (readlink: Permission denied) migration 6 root rtd unknown /proc/6/root (readlink: Permission denied) migration 6 root txt unknown /proc/6/exe (readlink: Permission denied) migration 6 root NOFD /proc/6/fd (opendir: Permission denied) ksoftirqd 7 root cwd unknown /proc/7/cwd (readlink: Permission denied) ksoftirqd 7 root rtd unknown /proc/7/root (readlink: Permission denied) ksoftirqd 7 root txt unknown /proc/7/exe (readlink: Permission denied) ksoftirqd 7 root NOFD /proc/7/fd (opendir: Permission denied) watchdog/ 8 root cwd unknown /proc/8/cwd (readlink: Permission denied) watchdog/ 8 root rtd unknown /proc/8/root (readlink: Permission denied) watchdog/ 8 root txt unknown /proc/8/exe (readlink: Permission denied) watchdog/ 8 root NOFD /proc/8/fd (opendir: Permission denied) events/0 9 root cwd unknown /proc/9/cwd (readlink: Permission denied) events/0 9 root rtd unknown /proc/9/root (readlink: Permission denied) events/0 9 root txt unknown /proc/9/exe (readlink: Permission denied) events/0 9 root NOFD /proc/9/fd (opendir: Permission denied) events/1 10 root cwd unknown /proc/10/cwd (readlink: Permission denied) events/1 10 root rtd unknown /proc/10/root (readlink: Permission denied) events/1 10 root txt unknown /proc/10/exe (readlink: Permission denied) events/1 10 root NOFD /proc/10/fd (opendir: Permission denied) khelper 11 root cwd unknown /proc/11/cwd (readlink: Permission denied) khelper 11 root rtd unknown /proc/11/root (readlink: Permission denied) khelper 11 root txt unknown /proc/11/exe (readlink: Permission denied) khelper 11 root NOFD /proc/11/fd (opendir: Permission denied) kblockd/0 30 root cwd unknown /proc/30/cwd (readlink: Permission denied) kblockd/0 30 root rtd unknown /proc/30/root (readlink: Permission denied) kblockd/0 30 root txt unknown /proc/30/exe (readlink: Permission denied) kblockd/0 30 root NOFD /proc/30/fd (opendir: Permission denied) kblockd/1 31 root cwd unknown /proc/31/cwd (readlink: Permission denied) kblockd/1 31 root rtd unknown /proc/31/root (readlink: Permission denied) kblockd/1 31 root txt unknown /proc/31/exe (readlink: Permission denied) kblockd/1 31 root NOFD /proc/31/fd (opendir: Permission denied) kacpid 32 root cwd unknown /proc/32/cwd (readlink: Permission denied) kacpid 32 root rtd unknown /proc/32/root (readlink: Permission denied) kacpid 32 root txt unknown /proc/32/exe (readlink: Permission denied) kacpid 32 root NOFD /proc/32/fd (opendir: Permission denied) kacpi_not 33 root cwd unknown /proc/33/cwd (readlink: Permission denied) kacpi_not 33 root rtd unknown /proc/33/root (readlink: Permission denied) kacpi_not 33 root txt unknown /proc/33/exe (readlink: Permission denied) kacpi_not 33 root NOFD /proc/33/fd (opendir: Permission denied) kseriod 169 root cwd unknown /proc/169/cwd (readlink: Permission denied) kseriod 169 root rtd unknown /proc/169/root (readlink: Permission denied) kseriod 169 root txt unknown /proc/169/exe (readlink: Permission denied) kseriod 169 root NOFD /proc/169/fd (opendir: Permission denied) pdflush 204 root cwd unknown /proc/204/cwd (readlink: Permission denied) pdflush 204 root rtd unknown /proc/204/root (readlink: Permission denied) pdflush 204 root txt unknown /proc/204/exe (readlink: Permission denied) pdflush 204 root NOFD /proc/204/fd (opendir: Permission denied) pdflush 205 root cwd unknown /proc/205/cwd (readlink: Permission denied) pdflush 205 root rtd unknown /proc/205/root (readlink: Permission denied) pdflush 205 root txt unknown /proc/205/exe (readlink: Permission denied) pdflush 205 root NOFD /proc/205/fd (opendir: Permission denied) kswapd0 206 root cwd unknown /proc/206/cwd (readlink: Permission denied) kswapd0 206 root rtd unknown /proc/206/root (readlink: Permission denied) kswapd0 206 root txt unknown /proc/206/exe (readlink: Permission denied) kswapd0 206 root NOFD /proc/206/fd (opendir: Permission denied) aio/0 259 root cwd unknown /proc/259/cwd (readlink: Permission denied) aio/0 259 root rtd unknown /proc/259/root (readlink: Permission denied) aio/0 259 root txt unknown /proc/259/exe (readlink: Permission denied) aio/0 259 root NOFD /proc/259/fd (opendir: Permission denied) aio/1 260 root cwd unknown /proc/260/cwd (readlink: Permission denied) aio/1 260 root rtd unknown /proc/260/root (readlink: Permission denied) aio/1 260 root txt unknown /proc/260/exe (readlink: Permission denied) aio/1 260 root NOFD /proc/260/fd (opendir: Permission denied) ksuspend_ 2177 root cwd unknown /proc/2177/cwd (readlink: Permission denied) ksuspend_ 2177 root rtd unknown /proc/2177/root (readlink: Permission denied) ksuspend_ 2177 root txt unknown /proc/2177/exe (readlink: Permission denied) ksuspend_ 2177 root NOFD /proc/2177/fd (opendir: Permission denied) khubd 2178 root cwd unknown /proc/2178/cwd (readlink: Permission denied) khubd 2178 root rtd unknown /proc/2178/root (readlink: Permission denied) khubd 2178 root txt unknown /proc/2178/exe (readlink: Permission denied) khubd 2178 root NOFD /proc/2178/fd (opendir: Permission denied) ata/0 2208 root cwd unknown /proc/2208/cwd (readlink: Permission denied) ata/0 2208 root rtd unknown /proc/2208/root (readlink: Permission denied) ata/0 2208 root txt unknown /proc/2208/exe (readlink: Permission denied) ata/0 2208 root NOFD /proc/2208/fd (opendir: Permission denied) ata/1 2209 root cwd unknown /proc/2209/cwd (readlink: Permission denied) ata/1 2209 root rtd unknown /proc/2209/root (readlink: Permission denied) ata/1 2209 root txt unknown /proc/2209/exe (readlink: Permission denied) ata/1 2209 root NOFD /proc/2209/fd (opendir: Permission denied) ata_aux 2210 root cwd unknown /proc/2210/cwd (readlink: Permission denied) ata_aux 2210 root rtd unknown /proc/2210/root (readlink: Permission denied) ata_aux 2210 root txt unknown /proc/2210/exe (readlink: Permission denied) ata_aux 2210 root NOFD /proc/2210/fd (opendir: Permission denied) khpsbpkt 2233 root cwd unknown /proc/2233/cwd (readlink: Permission denied) khpsbpkt 2233 root rtd unknown /proc/2233/root (readlink: Permission denied) khpsbpkt 2233 root txt unknown /proc/2233/exe (readlink: Permission denied) khpsbpkt 2233 root NOFD /proc/2233/fd (opendir: Permission denied) scsi_eh_0 2327 root cwd unknown /proc/2327/cwd (readlink: Permission denied) scsi_eh_0 2327 root rtd unknown /proc/2327/root (readlink: Permission denied) scsi_eh_0 2327 root txt unknown /proc/2327/exe (readlink: Permission denied) scsi_eh_0 2327 root NOFD /proc/2327/fd (opendir: Permission denied) scsi_eh_1 2328 root cwd unknown /proc/2328/cwd (readlink: Permission denied) scsi_eh_1 2328 root rtd unknown /proc/2328/root (readlink: Permission denied) scsi_eh_1 2328 root txt unknown /proc/2328/exe (readlink: Permission denied) scsi_eh_1 2328 root NOFD /proc/2328/fd (opendir: Permission denied) knodemgrd 2389 root cwd unknown /proc/2389/cwd (readlink: Permission denied) knodemgrd 2389 root rtd unknown /proc/2389/root (readlink: Permission denied) knodemgrd 2389 root txt unknown /proc/2389/exe (readlink: Permission denied) knodemgrd 2389 root NOFD /proc/2389/fd (opendir: Permission denied) kjournald 2532 root cwd unknown /proc/2532/cwd (readlink: Permission denied) kjournald 2532 root rtd unknown /proc/2532/root (readlink: Permission denied) kjournald 2532 root txt unknown /proc/2532/exe (readlink: Permission denied) kjournald 2532 root NOFD /proc/2532/fd (opendir: Permission denied) scsi_eh_2 2605 root cwd unknown /proc/2605/cwd (readlink: Permission denied) scsi_eh_2 2605 root rtd unknown /proc/2605/root (readlink: Permission denied) scsi_eh_2 2605 root txt unknown /proc/2605/exe (readlink: Permission denied) scsi_eh_2 2605 root NOFD /proc/2605/fd (opendir: Permission denied) usb-stora 2606 root cwd unknown /proc/2606/cwd (readlink: Permission denied) usb-stora 2606 root rtd unknown /proc/2606/root (readlink: Permission denied) usb-stora 2606 root txt unknown /proc/2606/exe (readlink: Permission denied) usb-stora 2606 root NOFD /proc/2606/fd (opendir: Permission denied) udevd 2741 root cwd unknown /proc/2741/cwd (readlink: Permission denied) udevd 2741 root rtd unknown /proc/2741/root (readlink: Permission denied) udevd 2741 root txt unknown /proc/2741/exe (readlink: Permission denied) udevd 2741 root NOFD /proc/2741/fd (opendir: Permission denied) kpsmoused 3838 root cwd unknown /proc/3838/cwd (readlink: Permission denied) kpsmoused 3838 root rtd unknown /proc/3838/root (readlink: Permission denied) kpsmoused 3838 root txt unknown /proc/3838/exe (readlink: Permission denied) kpsmoused 3838 root NOFD /proc/3838/fd (opendir: Permission denied) kmmcd 3899 root cwd unknown /proc/3899/cwd (readlink: Permission denied) kmmcd 3899 root rtd unknown /proc/3899/root (readlink: Permission denied) kmmcd 3899 root txt unknown /proc/3899/exe (readlink: Permission denied) kmmcd 3899 root NOFD /proc/3899/fd (opendir: Permission denied) mmcqd 4065 root cwd unknown /proc/4065/cwd (readlink: Permission denied) mmcqd 4065 root rtd unknown /proc/4065/root (readlink: Permission denied) mmcqd 4065 root txt unknown /proc/4065/exe (readlink: Permission denied) mmcqd 4065 root NOFD /proc/4065/fd (opendir: Permission denied) mount.ntf 4450 root cwd unknown /proc/4450/cwd (readlink: Permission denied) mount.ntf 4450 root rtd unknown /proc/4450/root (readlink: Permission denied) mount.ntf 4450 root txt unknown /proc/4450/exe (readlink: Permission denied) -Siva