[dm-crypt] problem cryptdisks_start

Benno Rieger mail at benno.info
Thu Dec 23 22:39:35 CET 2010

Most time (but not everytime) when i call cryptdisks_start it reports:
#cryptdisks_start extern0

Starting crypto disk...extern0 (starting)...
semid 2293761: semop failed for cookie 0xd4d580e: incorrect semaphore
Failed to set a proper state for notification semaphore identified by
cookie value 223172622 (0xd4d580e) to initialize waiting for incoming
The node /dev/mapper/extern0_unformatted should have been renamed
to /dev/mapper/extern0 by udev but new node is not present. Falling back
to direct node rename.
extern0 (started)...done.

I made checks every startup of the disk but there are no errors on it.
Is the "semop failed" a real problem or only a information?

System: debian-sid
Linux 2.6.35-trunk-amd64

hard dirve, on top lvm, on top dmcrypt/luks(using aes-xts-plain 64) with
ext4 file system

cryptsetup 1.1.3

Best Regards, 

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