dovecot - Aug 2014 - Panic on alway_bcc mail with attachment while using sdbox

I do always get a panic on service lmtp, while receiving a mail by postfix
through always_bcc, containing an attachment. If the bcc recipient would be
supplied by a small delay, I would say that the panic wouldn't occur, but I
don't know how to verify this.
dovecot is configured with 'mail_attachment_dir' and the public
namespace location is sdbox

dovecot log:
Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de): Panic:
file fs-api.c: line 615 (fs_copy): assertion failed: (src->fs == dest->fs)
Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de): Error:
Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x66676) [0x443676] ->
/usr/lib/dovecot/libdovecot.so.0(+0x66700) [0x443700] ->
/usr/lib/dovecot/libdovecot.so.0(+0x18c23) [0x3f5c23] ->
/usr/lib/dovecot/libdovecot.so.0(+0x2278b) [0x3ff78b] ->
/usr/lib/dovecot/libdovecot-storage.so.0(sdbox_copy+0x4ad) [0x23c6ad] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x62) [0x27da72] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_using_mail+0x2b)
[0x27db4b] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1a1)
[0x5dd3c1] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x143)
[0x5dd7c3] -> dovecot/lmtp() [0x804d090] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x43) [0x455973] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xdb) [0x456c4b] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x48) [0x4558b8] ->
/usr/lib/dovecot/libdovecot.so.0(master_service_run+0x2e) [0x3fb0ee] ->
dovecot/lmtp(main+0x1b3) [0x804b463] ->
/lib/libc.so.6(__libc_start_main+0xe6) [0x5f9d26] -> dovecot/lmtp()
[0x804b1e1]
Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de): Fatal:
master: service(lmtp): child 20367 killed with signal 6 (core dumps disabled)

I missed to mention, it's dovecot version 2.2.10 under CentOS 6.5. I'm
using the original package from
http://dl.atrpms.net/all/dovecot-2.2.10-1_14.el6.i686.rpm
Anyone aware of this panic in combination of attachment storage and sdbox?

-bernhard

At Wednesday, 06-08-2014 on 15:23 Fischer, Bernhard
wrote:
> I do always get a panic on service lmtp, while receiving a mail by postfix
through always_bcc, containing an attachment. If the bcc recipient would be
supplied by a small delay, I would say that the panic wouldn't occur, but I
don't know how to verify this.
> dovecot is configured with 'mail_attachment_dir' and the public
namespace location is sdbox
> 
> dovecot log:
> Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de):
Panic: file fs-api.c: line 615 (fs_copy): assertion failed: (src->fs ==
dest->fs)
> Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de):
Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x66676) [0x443676]
-> /usr/lib/dovecot/libdovecot.so.0(+0x66700) [0x443700] ->
/usr/lib/dovecot/libdovecot.so.0(+0x18c23) [0x3f5c23] ->
/usr/lib/dovecot/libdovecot.so.0(+0x2278b) [0x3ff78b] ->
/usr/lib/dovecot/libdovecot-storage.so.0(sdbox_copy+0x4ad) [0x23c6ad] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x62) [0x27da72] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_using_mail+0x2b)
[0x27db4b] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1a1)
[0x5dd3c1] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x143)
[0x5dd7c3] -> dovecot/lmtp() [0x804d090] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x43) [0x455973] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xdb) [0x456c4b] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x48) [0x4558b8] ->
/usr/lib/dovecot/libdovecot.so.0(master_service_run+0x2e) [0x3fb0ee] ->
dovecot/lmtp(main+0x1b3) [0x804b463] ->
/lib/libc.so.6(__libc_start_main+0xe6) [0x5f9d26] -> dovecot/lmtp()
[0x804b1e1]
> Aug  6 14:18:02 dovecot dovecot: lmtp(20367, vscanner at fischer-ing.de):
Fatal: master: service(lmtp): child 20367 killed with signal 6 (core dumps
disabled)
>