Hard System Freeze
 

OK, I have been living with this problem long enough.

Intermittent hard system freezes - total lock up. It can fail under load or just sitting idle. It can be in 30 seconds of reseting or hours later. Seems to be no particular application or instance that causes it.

No keyboard input is allowed. No movement of the cursor by the mouse. None of the keyboard ctl/atl/whatever works. Hard disk light stops blinking. A reset or power off is all that will bring it back.

dmesg contains no errors, failures, etc... Nothing there looks obviously wrong.

This has happened across multiple versions of Fedora Core 4.
Currently on 2.6.14-1.1656_FC4smp

I ran memtest found some bad memory and removed it. Memtest runs clear.

I swapped out a graphics card.

I use the linuxant wireless modem driver.

Motherboard Intel D865PERL
Pent IV processor

Output from cat /proc/interrupts is below. Doesn't look right to me, but not sure. And what is exactly wrong or how to fix it.

CPU0 CPU1
0: 37772 0 IO-APIC-edge timer
1: 79 0 IO-APIC-edge i8042
8: 1 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-level acpi
12: 1783 0 IO-APIC-edge i8042
14: 12499 0 IO-APIC-edge ide0
15: 996 0 IO-APIC-edge ide1
169: 0 0 IO-APIC-level libata, uhci_hcd:usb3
177: 1420 0 IO-APIC-level Intel ICH5, ohci1394
185: 0 0 IO-APIC-level cx88[0]
193: 1300 0 IO-APIC-level uhci_hcd:usb1, uhci_hcd:usb4
201: 0 0 IO-APIC-level uhci_hcd:usb2
NMI: 0 0
LOC: 37710 37709
ERR: 0
MIS: 0

{edit}

Output of /sbin/lspci

00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI 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)
00:1e.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 NV17 [GeForce4 MX 420] (rev a3)
02:01.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
02:07.0 FireWire (IEEE 1394): Agere Systems FW323 (rev 61)



Thanks in advance for your advice!

this sounds hardware related even tho your sys does not sound old.

maybe the mobo, maybe your processor.

you'll need to do more swapping out, or test with knoppix live (or similar) cd for several hours/days.

good luck.