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My system hangs regularly and I need some help identifying the cause. During the hang condition I have no keyboard/display response but it does respond to ping from another machine.
I suspect it to be hardware. This is an older system running AMD Athlon 1700+ processor and Elitegroup K7S5A motherboard. I've recently added Rosewill RC-400-LX gigabit PCI LAN card but seem to get the failure (though less frequently) while using the motherboard LAN port instead. I've also recently added Koutech PSA420 4-port SATA LAN card.
CPU temps seem reasonable and stable at 100F. Motherboard temp shows at 41F which I assume is a faulty sensor. Case temp is 108F. Hard drive temps are in the 82F-113F depending on how far from the case intake fan they are.
I have seen some segfaults and I am suspicious of them. Can segfaults be caused by failing memory? How can I determine the source of the segfaults? Are there logs somewhere to give me any hints?
Problem "seems" to be related to heavy I/O to SATA drives (though the Koutech PCI card), but I have no real convincing evidence there. smartctl doesn't seem to show anything outstanding on the drives in question.
Can anyone provide pointers on where to look for the cause of the hangs? I'm running Fedora 10, kernel 126.96.36.199-159 (though I'm more suspicious of hardware than software).
After MUCH testing I've pinned the problem down to the Koutech IO-PSA420 4-port SATA PCI card. I/O activity to the SATA drives attached to the PSA420 hangs the system after 100G or so. I/O to the motherboard attached IDE drives works fine. Replacing the PSA420 with the 2-port PSA150 works fine as well. I'm contacting Koutech about driver/firmware needs for the PSA420.