Mounting ISO over network crashes win 7 x64

[saitan]

If I mount a DVD on my NAS and transfer files to my local HD it usually works OK. But if the DVD contains several hundred small files, windows starts getting slower and slower and finally gets totally unresponsive to the point that I have to do a hard reboot. This does not happen if I mount the image on another local harddrive. I have tested every network tweak you could think of and finally tracked it down to VCD.
I switched to WinCDEmu-3.6 now and it transfers the files fine but I'd rather go back to VCD.

[Ch3vr0n]

Did you try the "buffered I/O" option on VCD ?

[saitan]

Sorry but after a little bit more investigating with procdump and and other tools it seems that my memory is spiking during copy. I have over 1gb free so it shouldn't be a problem but somehow memusage climbs during the process.

[GreenJelly]

From what I am understanding, you are reading a physical DVD/CD Rom over the network, using Virtual CloneDrive?

It sounds like the issue maybe that the server is reading the drive, encountering an error and lowering the speed. Eventually it encounters enough errors and goes into PIO mode.

Here is an explination... http://winhlp.com/node/10

The fix seems to be for older drives where windows predominately sticks the drive into PIO mode. I have not encountered this...

[Ancan]

Edited: Noticed older threads about the same problem. Sorry for reposting.



I can verify the issue, and it's not when mounting a physical DVD, but a iso-image.

Mounting iso's over a network will make something chomp up a lot of memory. I've filled my 6GB RAM during an install, and when it hits the roof it starts paging and the entire computer becomes more or less unresponsive.

No single process is showing high memory usage, but the RAM graph in Task Manager shows increasing usage.

If I copy the ISO's to local disk, and mount them from there there's no problem.

First I thought it was the combination VCD/Microsoft Security Essentials, so I uninstalled MSE and installed AVG instead. No improvement.

Win7 x64, buffered i/o makes no difference.

Regards,
A

[muzicman82]

I am also having this issue.

I tried Buffered I/O, and mounting from a NAS or any other UNC path or mapped network drive immediately crashes Windows. I can copy the ISO to a local drive and it works fine.

Is there a work around or fix for this?

Does anyone know if this is the case with Daemon Tools or Alcohol 120%? I have licenses for both of those too.

[davepusey]

I can also verify this issue, as I had it happen on my Mum's machine last night.