Several seg faults, help needed!

[Kattsand]

Ok, I´m kinda tired of all the seg faults now and I need some big help with it.

My setup is Gentoo (2008.0) with fairly new hardware, bought in early summer this year.

Screenshots of the varius seg faults I´ve encountered:

http://pici.se/pictures/elhFkCmZH.jpg

http://pici.se/pictures/glTnvFJfx.jpg

http://pici.se/pictures/umDYaOYOB.jpg

http://pici.se/pictures/KyuiMPUHL.jpg

http://pici.se/pictures/zuEkmNVuH.jpg

http://pici.se/pictures/XSTRHAoOg.jpg

http://pici.se/pictures/tgaoCKmkn.jpg

The seg faults appears when the machine have been on for ~1-3 days and the only testing so far is the make kernel script I´ve found in the FAQ here, 39 kernel builds in a row without errors.. then I cancelled.

And I´ve installed Gentoo roughly 15 times last 2-4 months and followed the official install guide.

[NeddySeagoon]

Kattsand,

Repeatable segfaults are usually the result of bad code.

Random segfaults indicate a hardware problem.
Check your CPU temperature, lm-sensors will show that and your power supply voltages, fan speeds and so on.
Are you overclocking - don't.
If you have agressive memory timings set in the BIOS, go back to defaults. These settings are read from the RAM SPD chips and are the manufactuers timings for your RAM, not BIOS generic defualts.

Run memtest from the liveCD for a few cycles.
It writes and reads various patterens to/from memory. Despite its name, it tests a lot more than your RAM so failures do not always indicate bad RAM.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

[kevstar31]

Run memtest86
Then post the outputs of:
emerge --info
lshw
cat /usr/src/linux/.config
_________________
while(true) std::cout << "Jesus I trust in you." << std::endl;
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[Kattsand]

Never overclocked and never will, the speccs are definitely good enough for what I´m using the computer for .

did memtest the computer now for 6 and a half hour, 7 passes and 0 errors.

emerge --info:

[kevstar31]

and your kernel config?
you ma need to flash your bios.
http://www.gigabyte.com.tw/Support/Motherboard/BIOS_Model.aspx?ProductID=2693
_________________
while(true) std::cout << "Jesus I trust in you." << std::endl;
My Political Compass

[Kattsand]

[agent_jdh]

That kernel config looks a bit of a mess (by this I mean it looks inappropriate for your hardware). I don't have a Core 2 Duo machine so maybe someone that does could advise more specifics. Everything is compiled in for a start (no modules), it's not correctly configured for your CPU, you're optimizing for size (generally not advised). How was it generated?

There's a guy in the forums (Pappy McFae I think) that provides kernel .config files for download that might be a good starting place for you. Otherwise 'make menuconfig' yourself, go through all the options, with the knowledge of the hardware that you have, and select the ones that are appropriate for you.
_________________
Jingle Jangle Jewellery

[NeddySeagoon]

Kattsand,

[Kattsand]

agent_jdh: whats messy about it ? how (which part) is it inappropiate for my hardware?
I´ve already tested the "core2duo" CFLAGS people are mentioning but it didnt work better so this last time I installed the system I followed the guide 100% and used generic settings for CFLAG.


NeddySeagoon: both my Seagate satadrives I´ve been using was already set to 1.5Gbit/s speed (SATA "1" standard), could setting up my kernel conf for /dev/sd* fix my issue?

[NeddySeagoon]

Kattsand,

Since I don't know the exact cause of the problem all I can say is that its worth trying.

I suspect overheating may play a part. Operate the machine with the case open.
Now make the cpu work hard with say