Strange things going on with 4.8

[Erik Ranà]

Daniela wrote:

>On Sunday 10 August 2003 22:22, Doug White wrote:
>  
>
>>On Sun, 10 Aug 2003, Daniela wrote:
>>    
>>
>>>I'm having problems no end on my 4.8-STABLE box, and I hope you can help
>>>me.
>>>
>>>My processes get lots of signals (mostly 6, 10 and 11), and my kernel
>>>dumps core very often. I have the core dumps from the 4 latest crashes.
>>>See attachment for more info.
>>>Notice the common values for IdlePTD and initial pcb. Does this mean
>>>anything?
>>>      
>>>
>>Not particularly ...
>>
>>These types of problems are generally caused by:
>>
>>1. Bad memory
>>2. Overheated processor, or some similar CPU fault
>>3. Bad memory
>>
>>    
>>
>>>1) Some time ago KDE was hanging in disk wait state forever.
>>>      
>>>
>>'inode'?
>>
>>    
>>
>>>2) When rebuilding the world, make sometimes fails, but when I retry, it
>>>either works, or fails elsewhere. I have not seen this on -STABLE, only
>>>on 5.0-RELEASE (on the same computer).
>>>      
>>>
>>5.0-R isn't very representative. You'd have to check against -current.
>>
>>    
>>
>>>I have already tested the memory (no errors). There weren't any problems
>>>with 4.6-RELEASE on my old box.
>>>      
>>>
>>How did you test the memory? Generally short of using a hardware SIMM
>>tester its very difficult to identify bad modules. memtest86 run over the
>>period of several hours can sometimes work.
>>
>>BIOS "tests" don't count.
>>    
>>
>
>I used sysutils/memtest from the ports, and let it run over night.
>BTW, is there some kind of "operating system" that boots off a floppy and just 
>tests the memory? That would be useful because memtest can't test all the 
>memory.
>What other diagnostic software could I use?
>
>Daniela
>
>  
>
Maybe http://www.memtest86.com/ can help you out?
Check if the motherboard manufactuer has some tests to check the hardware?
I saw some problems with syncing disks,  maybe harddrive problems? Check 
with the manufacturer of the harddrive if they have some testutillity to 
check if the harddrive is healthy?`

/Erik