network failures & backups
i’m not sure why but currently the machine i use to work on webcp keeps cutting out over the network…. it’s not an overheating problem and its happening with either of the two 3com 3c905 10/100Mbps network cards in there….. i can’t check it at the moment because it hasn’t got it’s own monitor (been meaning to buy one for a while). Its running ubuntu and shows no signs of whats up.. i’ll boot it up and check the sys log to see if there’s anything helpful.. Maybe the network cards are to blame because i’ve seen a freeze before with completely different hardware in the machine except those cards. It has onboard LAN as a backup anyway.
On another note I changed the backups code recently (just after i got it working pretty well) to use arrays to keep track of what backup archives are being dealt with, its not working well though. I was attempting to solve the problem of how to move the data about backups around between webcp hooks but i think my only option is to serialize individual parts.
EdG
This message might be the cause of my problems, 10 mins before i had to reboot the machine before i could get back connectivity (it obviously didn’t freeze the machine since acpi still shut it down when i pressed the power button).
Sep 10 13:14:40 ironman kernel: [ 1420.025134] NETDEV WATCHDOG: eth1: transmit timed out
Comment by edg — September 10, 2007 @ 8:35 am
It seems that the problem lies with ACPI, although everything seems fine on the system such as ACPI CPU frequency control which is working for both cores.
If anyone else has this issue it is discussed on linuxquestions.org and adding pci=noacpi seemed to fix it for me, (still waiting to see if its alright or not).
Although as far as i know this issue was not there with the kernel that shipped with Ubuntu 7.04, it appeared afterwards..after a kernel update or two.
So watch your kernels, this is the stupid thing about Linux and one reason i try to stick with slackware although on rpm based systems you can pretty easily control your updates.
EdG
Comment by edg — September 16, 2007 @ 12:46 pm