[Dovecot] While searching: Assertion failed (offset >= ctx->input->v_offset)

[Patrick Nagel]

Hi,

while a user is searching through his (1.2 GB, >150000) mails, I get a lot of 
these messages in the log, and the search (with Thunderbird) doesn't finish:

Jun 19 14:35:45 stshamail1 dovecot: Panic: IMAP(username): file 
message-parser.c: line 620 (preparsed_parse_body_init): assertion failed: 
(offset >= ctx->input->v_offset)

Jun 19 14:35:45 stshamail1 dovecot: IMAP(username): Raw backtrace: imap 
[0x80ce9f4] -> imap [0x80ce60c] -> imap [0x80c83f4] -> 
imap(message_parser_parse_next_block+0x1d) [0x80c802d] -> 
imap(message_search_msg+0x5f) [0x80c9a7f] -> imap [0x8098e0b] -> imap 
[0x809e42b] -> imap(mail_search_args_foreach+0x40) [0x809e540] -> 
imap(index_storage_search_next_nonblock+0x256) [0x80989f6] -> imap 
[0x805dc96] -> imap [0x805e0d6] -> imap(io_loop_handle_timeouts+0x80) 
[0x80d59c0] -> imap(io_loop_handler_run+0x82) [0x80d6522] -> 
imap(io_loop_run+0x28) [0x80d5828] -> imap(main+0x4ac) 
[0x806809c] -> /lib/libc.so.6(__libc_start_main+0xdc) [0x4003adec] -> imap 
[0x805a021]

Jun 19 14:35:45 stshamail1 dovecot: child 30070 (imap) killed with signal 6

What's wrong here? How to proceed with debugging?

Thanks,
Patrick.

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