[Solved Kinda] Error Message when creating a LVM Snapshot.

Question

I upgraded my Arch Laptop this morning, which among other things, also had an update for lvm2.
Anyways, as part of my backup strategy I create a LVM Snapshot of root and transfer that via rdiff-backup.
This used to work no problem. But ever since the update, whenever I create the snapshot, I get the following error message at the console:
lvcreate -L1G -s -n SnapRoot /dev/vg/root
  The link /dev/vg/SnapRoot should had been created by udev but it was not found. Falling back to direct link creation.
  semid 294912: semop failed for cookie 0xd4da0ca: incorrect semaphore state
  Could not signal waiting process using notification semaphore identified by cookie value 223191242 (0xd4da0ca)
  semid 294912: semop failed for cookie 0xd4da0ca: incorrect semaphore state
  Failed to set a proper state for notification semaphore identified by cookie value 223191242 (0xd4da0ca) to initialize waiting for incoming notifications.
  Logical volume "SnapRoot" created
It still creates the Snapshot volume, but I wasn't sure if it wasn't corrupted or something. Does anyone know what this error message means? Can I safely ignore it?
By the way, I don't know if its relevant, but my partition setup is like this:
/boot is a standard ext2 volume
/root is a unencrypted LVM2 volume
/home is LUKS Encrypted Volume ON TOP of a LVM2 volume.
Swap is also a LVM2 volume.
######update#####
Well, I don't know what changed, but this evening, I tried the whole lvm snapshot deal again, and this time there was no error message.
Perhaps some timestamps or something were wrong, or not as they should have been. Either way, I have no idea what might have changed. Since I definately tried one or two reboots to see if that would have fixed the problem.
Oh well.
Last edited by ChojinDSL (2010-11-30 21:20:48)

Answer 1

Go to Preferences and turn off Background Rendering.
Select your project in the library and in the File menu, click on Delete project Render Files; choose All when prompted. Select your event and do the same with the event Render files. In the project use the range tool to select a short section. Try to export that as a test. Don't render before you export.
If that doesn't work, copy the project and paste it into a fresh project. Try another export test.
If that doesn't work, create a new user account.
As for Blu Ray, there is a Share preset if want to check it out. Very simple menus. And the preset can only handle single tracks.
Good luck.
Russ