dovecot - May 2008 - Panic: IMAP(...): Trying to close mailbox INBOX with open transactions

I have been seeing this crash, which has been reported before but  
apparently not yet resolved.  As with the previous reporters, I do not  
know how to reproduce it reliably.

Dovecot version: 1.1.rc5
Operating system: Mac OS X 10.5.2
CPU architecture: x86
File system: HFS+
Activity:  From the backtrace it appears the client logged out while  
in the middle of some operation.
Backtrace:
0   libSystem.B.dylib             	0x946210ea __kill + 10
1   libSystem.B.dylib             	0x946983f2 raise + 26
2   libSystem.B.dylib             	0x946a79af abort + 73
3   imap                          	0x000743e2 i_internal_fatal_handler  
+ 102
4   imap                          	0x00073e03 i_fatal + 0
5   imap                          	0x0004614c mailbox_close + 48
6   imap                          	0x000053c4 cmd_logout + 74
7   imap                          	0x00007f14 client_command_input + 41
8   imap                          	0x000080d9 client_command_input + 494
9   imap                          	0x000081c5 client_handle_input + 218
10  imap                          	0x0000835d client_input + 176
11  imap                          	0x0007c001 io_loop_handler_run + 350
12  imap                          	0x0007af06 io_loop_run + 44
13  imap                          	0x00010732 main + 1972
14  imap                          	0x00001e76 start + 54

On May 16, 2008, at 8:29 PM, Mike Abbott wrote:
> I have been seeing this crash, which has been reported before but  
> apparently not yet resolved.  As with the previous reporters, I do  
> not know how to reproduce it reliably.
Could you also post your dovecot -n output?

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On May 16, 2008, at 8:29 PM, Mike Abbott wrote:
> I have been seeing this crash, which has been reported before but  
> apparently not yet resolved.  As with the previous reporters, I do  
> not know how to reproduce it reliably.
I'd guess it's because client sends a LOGOUT command while another  
command is still running. That could probably be considered a client  
bug.. But this fixes it: http://hg.dovecot.org/dovecot-1.1/rev/c4342385d696

If the error still happens after that change, some command handling is  
buggy. It would be useful then to get rawlog of the session that  
crashed to find out what commands were being used (probably some  
specific FETCH command).
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