Hello all I have a problem at hand and its with almost all Linux distros I have tried till date and its that when my pc is up for a long time it hangs permanently and I have to reboot or shutdown from the main switch, so can anyone tell me what exactly is the prob here my guess is its a kernel related problem.

Waiting for comments...

My Distro List:
Ubuntu
Kubuntu
Zenwalk
Opensuse
Vector Linux
PcLinuxOS

Well, there is nothing in any of the distros that would cause that by itself. Perhaps if you told us about your hardware? Are you using only the default packages, or did you customize something, install third party packages, use proprietory drivers, and suchlike?

It is unlikely to be kernel related as all those distros use different kernels by default.

If the time between freezing is roughly the same, use top to monitor if any of the programs has a memory leak.
The symptoms could also be caused by anything from a loose cable to bad memory as well.

I was having a similar problem on my desktop, but it was very intermittant. I swapped memory so that the would be the same model and speed. ( I had an extra module handy ) This seemed to work for a while but later it froze again. I had since reinstalled for other reasons, and didn't bother with compiz. I noticed a few weeks later that that it hadn't froze. ( But the weather is a lot cooler now as well )

Well am using default packages and the default integrated kernel which is supposed to be 2.6 in all the listed distros

Hardware Info:-

Motherboard Information
Motherboard Model P4M266/A-823X
Motherboard Vendor Unknown
Chipset Model VIA P4X266/A Chipset
BIOS Model Phoenix-Award BIOS v6.00PG
BIOS Vendor Award Software Inc.
BIOS Id 04/12/2003-P4M266/A-823X-6A6LWPRDC-00
BIOS Date 04/12/03



Adapters: S3 Graphics ProSavageDDR

General Information
Device Name S3 Graphics ProSavageDDR
Device ID \\.\DISPLAY1
BIOS Date 01/22/02
BIOS Version S3 P4M DDR BIOS Ver. P4M-78.30.00.07




Devices: WDC WD400EB-00CPF0 (WD-WCAATE767414)
ATA Information
Controller Primary Controller
Position Master Drive
Model Number WDC WD400EB-00CPF0
Firmware Revision 06.04G06
Serial Number WD-WCAATE767414
Supported ATA Standard ATA-1, ATA-2, ATA-3, ATA-4, ATA-5



Devices: ST340810A (3FB28414)
Hard Disk Specifications
Model ID ST340810A
Model Name U Series 40810
Form Factor 3.5"
Interface Ultra-ATA/100
Capacity 40 GB
Recording Surface 2
Rotational Speed 5400 RPM
Average Rotational Latency 5.55 ms
Average Seek 8.9 ms
Track-To-Track Seek 1.2 ms
Full Stroke Seek 22 ms
Max. Internal Data Rate 436 Mbps
Buffer-to-Host Data Rate 100 MB/s
Buffer Size 2048 KB
Spin-Up Time 6.5 Sec
Dimensions 147 x 101.85 x 26.1 mm
Weight 680 g
ATA Information
Controller Primary Controller
Position Slave Drive
Model Number ST340810A
Firmware Revision 3.39
Serial Number 3FB28414
Supported ATA Standard ATA-1, ATA-2, ATA-3, ATA-4, ATA-5, ATA-6


Processor
Model Intel Pentium 4 (0.13 µm)
Type Primary Processor
Vendor Intel Corporation
Family Intel P4 Family
Hardcoded Name Intel(R) Pentium(R) 4 CPU 2.40GHz
Frequency 2400 MHz
Family/Model/Stepping 15/2/7
Brand ID 9
Logical CPU Count 1
CL Flush 8

Detailed Info
Address Bus Width 36 Bit
Core Details 126 µOPs, 48 Loads, 24 Stores In-Flight
Core Voltage 1.5 v
Data Bus Width 64 Bit
Execution Speed Up to 6 µOPs/Cycle
Execution Units Double-pumped ALU, FP Move/Store/FXCH, Double-pumped ALU,
Slow ALU, FP Execute, Load, Store
First Introduction August 28th, 2001
Floating Point Integrated
I/O Voltage 1.5 v
Instruction Decoder 1x IA-32/Cycle
Instruction Set IA-32
Maximum Power 77.0 w
Multimedia MMX, SSE, SSE2
Multiprocessing SMP, using integrated local xAPICs
Physical Memory 2^36 Bit (64 GB)
Pipeline Depth 20 Stages
Power Management HLT, STPCLK, SMI/SMM, Sleep, Deep Sleep,
Automatic Clock Throttling
Processor Core RISC, Out-of-order and Speculative Execution
Processor Modes Real, Protected, Virtual, Paging, SMM, Probe Mode
Registers 32 Bit Integer, 80 Bit FP, 64 Bit MM, 128 Bit SSE and SSE2
Split Voltage Yes (Automatically determined via VID Pins)
Supported External Bus Speed 100, 133 MHz Quad-Pumped, AGTL+
Supported Multiplier 13.0x, 14.0x, ..., 24.0x
Technology 6M, 0.13 µm, CMOS, Cu, Low-K
Transistors +/- 55,000,000
Typical Power 55.0-65.0 w
Virtual Memory 65,528 GB (~64 TB)
Codename A80532, Northwood

Cache Configuration
L1 Code TLB 4 KB pages, 4-way set associative, 32 entries
4 KB/4 MB/2 MB pages, fully associative, 128 entries
L1 Data Cache 8 KB size, 4-way set associative, 64 byte lines, sectored
L1 Data TLB 4 KB/4 MB pages, fully associative, 64 entries
L2 Cache None
Trace L1 Cache 12 KµOPs, 8-way set associative
Unified L2 Cache 512 KB size, 8-way set associative, 64 byte lines, sectored

Processor Features
Floating-point Unit on chip (FPU) Yes
MMX Instructions (MMX) Yes
MMX Instruction Extensions (MMX+) No
3DNow! Instructions No
3DNow! Instruction Extensions (3DNow!+) No
Streaming SIMD Extensions (SSE) Yes
Streaming SIMD Extensions 2 (SSE2) Yes
Multiprocessor Capable No
x86-64 Long Mode (LM) No
Virtual Mode Extension (VME) Yes
Debugging Extension (DE) Yes
Page Size Extension (PSE) Yes
Time Stamp Counter (TSC) Yes
Model Specific Registers (MSR) Yes
Physical Address Extension (PAE) Yes
Machine Check Exception (MCE) Yes
CMPXCHG8 Instruction (CX8) Yes
On-chip APIC Hardware (APIC) No
Fast System Call (SEP) Yes
Memory Type Range Registers (MTRR) Yes
Page Global Enable (PGE) Yes
Machine Check Architecture (MCA) Yes
Conditional Move Instruction (CMOV) Yes
Page Attribute Table (PAT) Yes
36-bit Page Size Extension (PSE36) Yes
96-bit Processor Number (PSN) No
CLFLUSH Instruction (CLFSH) Yes
Debug Trace Store (DTS) Yes
ACPI Supported (ACPI) Yes
Fast Save and Restore (FXSR) Yes
Self Snoop (SS) Yes
Thermal Monitor Supported (TM) Yes
IA-64 Processor Capable (IA-64) No

No, actually the time between the hangs is not same its different on different distros it freezes very quickly on Opensuse

I'm lazy and don't feel like looking it all up for you, but is all of your hardware on the HCL? I'm not very familiar with S3 cards, so that would be the first place I'd personally check. Then I'd probably do a RAM test.

does the system hang instantly afrer pressing the power button or are there any linux boot messages about starting services on the screen , if yes than which is last message to come ?