loop-aes: make tests fails: Device busy

[Jens Lechtenboerger <lechten@xxxxxxxxxxxxxxxxxx>]

Hi there,

when doing "make tests" for loop-aes v3.2e, I get the following
error (for different invocations after different numbers of tests):
/sbin/losetup -d /dev/loop7
ioctl: LOOP_CLR_FD: Device or resource busy
If I put "sleep 1" before the three invocations of "losetup -d" then
all tests are passed ("*** Test results ok ***").

Is it safe to use an encrypted root partition in this case?
Might data get lost upon shutdown?

My kernel is 2.6.28.7 with Ubuntu add-ons.

Thanks
Jens

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