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I have this problems with my server. I'll try to explain as best I
can. I
have my server up and online. Apache is up and working swell, along
with
my SSH server. I can SCP(secure copy) small files with no problem. I
apache answers web request just fine.
However if I try to SCP big files to or from the server, or if the web
page
has anything bigger than a couple of MB of data on it, the whole server
will totally freeze up. I can no longer type, move mouse, do anything
at
all, all network connectivity is destroyed. The only fix is to hard
power
down the server and boot backup.
I'm sorry if I kinda short on the information. I'll try to provide as
much
information about what I'm running.
Software
OS: Slackware 10.0
Apache 2.0.52
SSH: not sure how to find out
Hardware
256 MB of ECC Crucial.com Memory
Soyo SY-K7V Dragon+ motherboard
Western Digital 7200 RPM 20GB hard drive
AMD Athlon XP 1800 Processor
Standard CD-Drive....umounted most of the time
Standard Floppy.....also unmounted most of the time
If anyone has an Idea please help me....this is frustrating.
If you need more info...just ask and I'll try to provide
I can't definitely point my finger at the cause, but I would ask a few questions, in the hopes that it may help others respond to the question
1. How big exactly are these large files - 5Mg, 200Mg, 3G, etc.
2. From the sounds of it, a (temporarily) overloaded CPU can exhibit the same behavior as you describe with your freeze. How long are you giving the machine to perform the transfer, and have you tried just letting it run for say an hour to see what happens. My thought is that the machine may be starting up the transfer, but perhaps you just aren't giving it enough time to complete.
3. Do you have sufficient disk space on the target machine to accept the file you wish to transfer, eg, are you attempting to transfer a 2G file when you've only got 500Mg of free space.
Sorry I don't have an actual solution to suggest. Good luck with it -- J.W.
A 5 MB file can cause the server to freeze up. The situation that I've noticed the most is this. Someone out there requests a web page from my server. The particular page contains pictures...maybe totalling up to 5 MB. The page will begin to load and then stop. I will come home from work and find my machine totally froze.....cannot move the mouse...cannot do anything. Most of the time it has been in that state for 5 - 8 hours.
Location: USA (Springfield, Windsor County, Vermont)
Posts: 57
Rep:
The CPU chip may be overheating. I would if I were you enter the BIOS setup and check the CPU temperature after you lose control of your system and required to reboot it.
Let me make those numbers a little easier to read
Vcore = 1.76V
VCC 2.5V = 2.46V
3.3 V = 3.28V
+5 V = 4.99V
+12V = 12.22V
SVSB = 4.91V
CPU TEMP = 41 Celcius
SYS TEMP = 29 Celcius
Attempted to SCP (secure copy) a 10 MB folder from the server to a windows machine. 3.83 MB transferred over before the server froze. Watching the lights on my netgear router......the port that my XP machine was in......stopped flashing. The port that my Slackware box was plugged into.....kept flashing.......server was froze up. Could not move mouse, or type.....had to hard power down
Okay....here is a kicker. Above I mentioned that when I tried to SCP a 10 MB folder it got 3.83 MB transferred from the server to my local machine before it froze. Well just on a whim I decided to see what it would do if I tried to transfer files to the server from my local machine. I was able to successfully transfer a 1 GB file up to the server.....and no freezeups. Any ideas why I can put stuff to the server....but not bring things from it?
You may want to update your box to the latest Slackware released official kernel update for your distro version, it seems those freezeup problems mostly caused by kernel bugs, and I met the same problem with rsync and default installed Red Hat Linux 7.3 last year.
Okay.....what you say makes sense.......but I have no idea on where to even start......if you could hook me up with some links and tutorials I can mostly piece my way through it.
Another thing....how can I tell what kernal I'm on?
Back from Thanksgiving and ready to get to solving this problem. I've searched high and low and have found no tutorial showing how to update the kernal in slackware 10.0 from kernal version 2.4.26 to 2.6.X. If someone could either assist me in updating.....commands....ect....or point me to a good tutorial I can try to get this rather annoying problem fixed.
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