Unable to start Gnome Applications after lost Wireless connection

[gnufied]

Binary package hint: gnome-session

In Gutsy, occasionally I will loose my wireless connection and network manager will attempt to reconnect
to the router, but it will get hung.

47430.096000] ipw3945: Error sending cmd #07 to daemon: time out after 500ms.
[47431.696000] ipw3945: Error sending SCAN_ABORT_CMD: time out after 500ms.
[47432.196000] ipw3945: Error sending cmd #08 to daemon: time out after 500ms.
[47432.696000] ipw3945: Error sending ADD_STA: time out after 500ms.
[47433.196000] ipw3945: Error sending SCAN_ABORT_CMD: time out after 500ms.
[47436.724000] ipw3945: Error sending LEDS_CMD: time out after 500ms.
[47455.668000] ADDRCONF(NETDEV_UP): eth1: link is not ready
[47492.196000] ipw3945: Error sending LEDS_CMD: time out after 500ms.
[47492.696000] ipw3945: Error sending LEDS_CMD: time out after 500ms.
[49231.880000] ata1.00: exception Emask 0x2 SAct 0xc SErr 0x0 action 0x2 frozen
[49231.880000] ata1.00: (spurious completions during NCQ issue=0x0 SAct=0xc FIS=005040a1:00000002)
[49231.880000] ata1.00: cmd 61/10:10:f8:1d:c9/00:00:07:00:00/40 tag 2 cdb 0x0 data 8192 out
[49231.880000] res 50/00:08:30:21:c9/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[49231.880000] ata1.00: cmd 61/08:18:30:21:c9/00:00:07:00:00/40 tag 3 cdb 0x0 data 4096 out
[49231.880000] res 50/00:08:30:21:c9/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[49232.192000] ata1: soft resetting port
[49232.420000] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[49232.420000] ata1.00: configured for UDMA/100
[49232.420000] ata1: EH complete

Also, Network manager gnome applet is simply hung. The network manager spinner started to spin and then it got stuck.
Also, i am sure my router is fine and its running, because other connections are active.
I must reboot my machine.

Also, I notice that whenever this happens, I am unable to start any new applications ( with few exceptions ).

Starting nautilus simply does nothing. When started from gnome-terminal again, nothing happens. Command just waits there,
no nautilus window comes up. When starting with strace, i found that nautilus hangs at:

fstat64("/etc/gnome-vfs-2.0/modules/extra-modules.conf", {st_mode=S_IFREG|0644, st_size=225, ...}) = 0
open("/etc/gnome-vfs-2.0/modules/extra-modules.conf", O_RDONLY|O_LARGEFILE) = 10
fstat64(10, {st_mode=S_IFREG|0644, st_size=225, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fbe000
read(10, "#\n# Module configuration file fo"..., 4096) = 225
read(10, "", 4096) = 0
close(10) = 0
munmap(0xb7fbe000, 4096) = 0
rt_sigaction(SIGPIPE, {SIG_IGN}, {SIG_IGN}, 8) = 0
time(NULL) = 1203167279
mkdir("/home/hemant/.gnome2", 0700) = -1 EEXIST (File exists)
mkdir("/home/hemant/.gnome2_private", 0700) = -1 EEXIST (File exists)
chmod("/home/hemant/.gnome2_private/", 0700) = 0
mkdir("/home/hemant/.gnome2/accels", 0700) = -1 EEXIST (File exists)
open("/usr/share/locale/en_IN/LC_MESSAGES/libbonobo-2.0.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libbonobo-2.0.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale-langpack/en_IN/LC_MESSAGES/libbonobo-2.0.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale-langpack/en/LC_MESSAGES/libbonobo-2.0.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
gettimeofday({1203167279, 447353}, NULL) = 0
gettimeofday({1203167279, 447609}, NULL) = 0
gettimeofday({1203167279, 447782}, NULL) = 0
socket(PF_FILE, SOCK_STREAM, 0) = 10
uname({sys="Linux", node="shire", ...}) = 0
connect(10, {sa_family=AF_FILE, path="/tmp/.ICE-unix/6083"}, 21) = 0
fcntl64(10, F_SETFD, FD_CLOEXEC) = 0
write(10, "\0\1\0\0\0\0\0\0", 8) = 8
read(10,

In a nutshell, its waiting on file /tmp/.ICE-unix/6803

Also Choosing "quit" from System menu brings up nothing and I must either restart the system or press Alt-Ctrl-Backspace.

pressing Alt-Ctrl-Backspace will result in lots of zombies and all the process owned by that user will become zombie.

Here is the output of lspci:

00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Contoller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8400M GS (rev a1)
03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
03:01.1 Generic system peripheral [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)

ProblemType: Bug
Architecture: i386
Date: Sat Feb 16 19:03:34 2008
DistroRelease: Ubuntu 7.10
ExecutablePath: /usr/bin/yelp
NonfreeKernelModules: nvidia
Package: yelp 2.20.0-0ubuntu3
PackageArchitecture: i386
ProcCmdline: yelp ghelp:about-ubuntu
ProcCwd: /home/hemant
ProcEnviron:
 PATH=/home/hemant/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux shire 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux

[Sebastien Bacher (seb128)]

thank you for your bug report, could you try if that's still an issue in hardy or intrepid?

[gnufied (gethemant)]

I think, this got resolved in hardy. You can close the bug.

[Sebastien Bacher (seb128)]

thank you for the update, closing the bug