1.1.0-rc1: device-mapper: remove ioctl failed: Device or resource busy

Issue 38 by jo...@freesources.org on 2009-09-30 08:35:54:

hello,

with cryptsetup 1.1.0-rc1 i sometimes get device-mapper errors at unlocking
a luks device. i didn't get these errors with cryptsetup 1.0.7:

with a wrong password an error was steadily reproducible some minutes ago:

# cryptsetup luksOpen /dev/vg0/test ctest
Enter passphrase for /dev/vg0/test:
device-mapper: remove ioctl failed: Device or resource busy
No key available with this passphrase.

unfortunately at the time of writing the bug i'm no longer able to
reproduce that error. i didn't change anything, didn't reboot.

with a correct passphrase i once (during boot process) got another error,
but i am unable to reproduce it any longer. i don't know the order of
messages any longer, and dmesg only contains the 'unable to remove open
device' error. so the exact order of warnings/errors/messages might be
different:

# cryptsetup luksOpen /dev/vg0/test ctest
Enter passphrase for /dev/vg0/test:
Key slot 0 unlocked.
device-mapper: remove ioctl failed: Device or resource busy
device-mapper: ioctl: unable to remove open device temporary-cryptsetup-2564

i'll try to reproduce errors by rebooting later that day.

greetings,
jonas