Thread: New database backend - testers needed
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Old 08-04-2013, 10:06 AM   #109
johnwhelan
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Posts: 117
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Join Date: Jan 2009
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I'm having a problem when trying to delete a book. The first book I tried twice, then I tried another book. In all three cases I logged out of the windows account then restarted Calibre as it appeared to be unresponsive.

Cheerio John

calibre, version 0.9.42
ERROR: Unhandled exception: <b>LockingError</b>:can't downgrade SHLock object

Traceback (most recent call last):
File "site-packages\calibre\gui2\library\models.py", line 932, in data
File "site-packages\calibre\gui2\library\models.py", line 693, in func
File "site-packages\calibre\db\cache.py", line 54, in ans
File "site-packages\calibre\db\locking.py", line 208, in __enter__
File "site-packages\calibre\db\locking.py", line 79, in acquire
File "site-packages\calibre\db\locking.py", line 149, in _acquire_shared
LockingError: can't downgrade SHLock object
calibre, version 0.9.42
ERROR: Unhandled exception: <b>LockingError</b>:can't downgrade SHLock object

Traceback (most recent call last):
File "site-packages\calibre\gui2\library\models.py", line 932, in data
File "site-packages\calibre\gui2\library\models.py", line 693, in func
File "site-packages\calibre\db\cache.py", line 54, in ans
File "site-packages\calibre\db\locking.py", line 208, in __enter__
File "site-packages\calibre\db\locking.py", line 79, in acquire
File "site-packages\calibre\db\locking.py", line 149, in _acquire_shared
LockingError: can't downgrade SHLock object

calibre, version 0.9.42
ERROR: Unhandled exception: <b>LockingError</b>:can't downgrade SHLock object

Traceback (most recent call last):
File "site-packages\calibre\gui2\library\models.py", line 932, in data
File "site-packages\calibre\gui2\library\models.py", line 693, in func
File "site-packages\calibre\db\cache.py", line 54, in ans
File "site-packages\calibre\db\locking.py", line 208, in __enter__
File "site-packages\calibre\db\locking.py", line 79, in acquire
File "site-packages\calibre\db\locking.py", line 149, in _acquire_shared
LockingError: can't downgrade SHLock object
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