MobileRead Forums - View Single Post - Bug "IOError: [Errno 13] Permission denied" when editing meta-data

ShellShock · 09-22-2013, 01:34 PM

That was my first thought too, except that the problem goes away once you OK out of Edit metadata.

Here is a bit from a procmon log:

Code:

18:12:07.7208513	calibre.exe	3556	1812	CreateFile	foo.epub	ACCESS DENIED	Desired Access: Generic Read/Write, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Write, AllocationSize: n/a
18:12:14.6419783	calibre.exe	3556	1812	CreateFile	foo.epub	SUCCESS	Desired Access: Generic Read, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Write, AllocationSize: n/a, OpenResult: Opened

18:12:07: Calibre tries to open the file with read/write when I click the Info button (Set meta data for the book from the selected format), this fails as some other process already has a write lock. I OK out of Edit metadata, go back in, and then press Info button again. This now works (18:12:14) as Calibre only wants a read lock this time.

Some other process has definitely got a lock on the file. If I exit Calibre and try and open the same file from Sigil I get the same error when I save. I have not been able to work out what is locking the file--procexp is no help.

But I am a little puzzled why the Info button in Calibre Edit metadata takes a read/write lock the first time and later just a read lock? The file is external to the Calibre database, so I would expect it to only use a read lock.

Thanks for your patience.

09-22-2013, 01:34 PM	#3
ShellShock Wizard Posts: 1,178 Karma: 2431850 Join Date: Sep 2008 Device: IPad Mini 2 Retina	That was my first thought too, except that the problem goes away once you OK out of Edit metadata. Here is a bit from a procmon log: Code: 18:12:07.7208513 calibre.exe 3556 1812 CreateFile foo.epub ACCESS DENIED Desired Access: Generic Read/Write, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Write, AllocationSize: n/a 18:12:14.6419783 calibre.exe 3556 1812 CreateFile foo.epub SUCCESS Desired Access: Generic Read, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Write, AllocationSize: n/a, OpenResult: Opened 18:12:07: Calibre tries to open the file with read/write when I click the Info button (Set meta data for the book from the selected format), this fails as some other process already has a write lock. I OK out of Edit metadata, go back in, and then press Info button again. This now works (18:12:14) as Calibre only wants a read lock this time. Some other process has definitely got a lock on the file. If I exit Calibre and try and open the same file from Sigil I get the same error when I save. I have not been able to work out what is locking the file--procexp is no help. But I am a little puzzled why the Info button in Calibre Edit metadata takes a read/write lock the first time and later just a read lock? The file is external to the Calibre database, so I would expect it to only use a read lock. Thanks for your patience. Last edited by ShellShock; 09-22-2013 at 02:41 PM.