Hangs at shutdown; 2.6.26 to 2.6.27

[DZ*]

I have a desktop with FC-9. All worked fine prior to 2.6.26, 2.6,27 kernels. The newer ones cause the machine to freeze at shutdown, after printing the message "Disabling IRQ #18". So, I still have to use 2.6.25.

Are there some kernel boot options that I should try?

It is Dell Precision 360.
lspci
00:00.0 Host bridge: Intel Corporation 82875P/E7210 Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82875P Processor to AGP Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV18GL [Quadro NVS 280 SD] (rev a2)
02:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)

[Tauroka]

Hi DZ*,
I am also suffering similar symptoms to you since upgrading to a later kernel.
Interestingly, I'm only experiencing it on my 32bit machine not my 64bit, but my 32bit machine is a markedly different configuration to yours.

I believe that nm-applet is the culprit.

To confirm we are discussing the same issue, please try:
From a Terminal,
killall nm-applet
Close the terminal and shutdown the machine.

Does your shutdown complete successfully now?

[DZ*]

Hi Tauroka,

"killall nm-applet" didn't help in my case. I also have upgraded to FC10 since then, and the problem persists.

The only way I can reboot is with "reboot -f". I'm not sure if it is a safe way to reboot, but it is surely almost as fast as the power switch :-)

[CptCaveMan]

Does anyone know if there is a solution for this issue? I have the same exact problem and message as DZ* when shutting down or rebooting, and it showed up after a kernel update. I also did a fresh install of Fedora 10 hoping it would fix the problem, but just as with DZ*, it still persists. I have an OptiPlex Gx270, and running lspci, I see I basically have the same hardware as listed above. Any ideas?