Where Has All The Memory Gone?
Weird weird issue on the normally kickass server here at the Funcave, which just so happens to be named Charlene. As in…
The name of this server is CHARLENE, SIR!
Tried to copy a 45GB VHD file to our girl…
A file which came courtesy of someone who just so happens to have a pink blog…
No matter how many different ways I tried to copy the file, Charlene eventually got into a totally frozen state. No matter if I tried to copy directly from USB HDD, via network client, or copying from another share, eventually Charlene would become totally unresponsive at the console, sever all network connects, etc.
Now Charlene’s a badass in her own right…
- HP ML350
- 2Ghz single quad-core Xeon
- 19 GB RAM
- 80 GB OS volume
- 250 GB Data volume
Charlene’s running…
- Windows Server Standard 2008 x64
- Hyper-V RC1
Seeing all kinds of weirdness trying to copy files to/from her.
All the mayhem starts when Free Physical Memory drops to sickeningly low levels.
Anyone with any serious knowledge of what’s going on wanna ping me? I’m talking Windows Server team, etc. Or anyone with the last name of Russinovich.
|| posted by chris under beta, clueless, hardware, kma, thumbs down, timekiller, virtualization || || ||
That makes me wonder - how much of a discount did you get on that RAM?
comment by Pink blog girl — May 30, 2008 @ 5:51 am
Nah…Crucial all the way.
Mem test was the first thing I ran, using W2K8’s built-in tool. Came back totally clean.
comment by chris — May 30, 2008 @ 8:29 am
Sounds like you’ve got a nasty kernel mode memory leak, possibly in the network card driver.
Either update the NIC driver to the latest version, or roll back to the driver that comes with Windows (depending on what’s installed).
The Ask the Performance Team blog has some useful posts on debugging this stuff.
comment by Chris Knight — June 2, 2008 @ 2:52 am
@ Chris…
Thanks man. I think it’s tied to a storage card driver actually, since I saw it even when the NIC wasn’t involved (local copies).
I may have traced it to a combination of things, which I’ll prolly post in a couple of days, once I get past a few key deadlines.
Thanks for the link to the Ask the Performance Team. That is one awesome site. Should be required reading for anyone who uses the words “IT” and “Pro” to describe themselves.
comment by chris — June 2, 2008 @ 2:56 am