panic when using dovecot master account

[André Rodier]

On 2018-11-09 07:40, André Rodier wrote:
> On 2018-11-09 05:25, Aki Tuomi wrote:
>> This seems to have nothing to do with master account or not. Does this
>> happen if you try to open the virtual mailbox again?
>> 
>> Aki
>> 
>>> On 09 November 2018 at 00:13 André Rodier <andre at rodier.me> wrote:
>>> 
>>> 
>>> Hello,
>>> 
>>> I am running dovecot 2.2.34 (874deae), on Debian stable, from 
>>> backports.
>>> 
>>> I just tried the master account, and although everything worked in 
>>> the
>>> email client, I had logs in the error logs:
>>> 
>>> 
>>> > imap(mirina): Panic: file mail-index-sync.c: line 413
>>> > (mail_index_sync_begin_to2): assertion failed: (!index->syncing)
>>> > Nov 08 22:06:24 osaka dovecot[1450]: imap(mirina): Error: Raw
>>> > backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9e412) [0x7f20ae813412]
>>> > -> /usr/lib/dovecot/libdovecot.so.0(+0x9e50d) [0x7f20ae81350d] ->
>>> > /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f20ae7a2c51] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(+0xe0fe4) [0x7f20aeb88fe4] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_begin_to+0x4f)
>>> > [0x7f20aeb890bf] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_begin+0x1c)
>>> > [0x7f20aeb8915c] ->
>>> > /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_storage_sync_init+0x218)
>>> > [0x7f20ad51f308] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x44)
>>> > [0x7f20aeaf02d4] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x37)
>>> > [0x7f20aeaf0387] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_get_status+0x31)
>>> > [0x7f20aeb6bbf1] ->
>>> > /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0x936d)
>>> > [0x7f20ad51c36d] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa8771)
>>> > [0x7f20aeb50771] ->
>>> > /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0xfd46) [0x7f20adb8bd46]
>>> > -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_status+0x31)
>>> > [0x7f20aeaf0781] ->
>>> > /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_storage_sync_init+0x10b8)
>>> > [0x7f20ad5201a8] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x44)
>>> > [0x7f20aeaf02d4] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x37)
>>> > [0x7f20aeaf0387] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_get_status+0x31)
>>> > [0x7f20aeb6bbf1] ->
>>> > /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0x936d)
>>> > [0x7f20ad51c36d] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa8771)
>>> > [0x7f20aeb50771] ->
>>> > /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0xfd46) [0x7f20adb8bd46]
>>> > -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_status+0x31)
>>> > [0x7f20aeaf0781] ->
>>> > /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_storage_sync_init+0x10b8)
>>> > [0x7f20ad5201a8] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x44)
>>> > [0x7f20aeaf02d4] ->
>>> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x37)
>>> > [0x7f20aeaf0387] -> dovecot/imap(cmd_select_full+0x16b)
>>> > [0x557de970cc3b] -> dovecot/imap(command_exec+0x5c) [0x557de971444c] ->
>>> > dovecot/imap(+0x1a912) [0x557de9712912]
>>> > Nov 08 22:06:24 osaka dovecot[1450]: imap(mirina): Fatal: master:
>>> > service(imap): child 4289 killed with signal 6 (core dumps disabled)
>>> 
>>> I attach my dovecot configuration too.
>>> 
>>> Thanks for your help.
>>> 
> 
> Hello Aki,
> 
> You are right, the same error happens, even if I do not use the master 
> password.
> 
> The weird thing is that it happens only with one specific account. For
> this account, the virtual folders I have don't work, but they work for
> the other accounts.
> 
> I do not have too much time to investigate now, but I will continue
> this weekend.
> 
> Kind regards,
> André

Happy new year, everyone!

Aki, I have been able to reproduce the problem, and this time, with the 
packages from Debian stable. So you were right, this had nothing to do 
with master user, but virtual folders.

I can now send the full stack trace, and doveconf.

Package versions:

ii  dovecot-core           1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - core files
ii  dovecot-dbg            1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - debug symbols
ii  dovecot-imapd          1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - IMAP daemon
ii  dovecot-ldap           1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - LDAP support
ii  dovecot-lmtpd          1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - LMTP server
ii  dovecot-managesieved   1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - ManageSieve server
ii  dovecot-pop3d          1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - POP3 daemon
ii  dovecot-sieve          1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - Sieve filters support
ii  dovecot-solr           1:2.2.27-3+deb9u2 amd64        secure 
POP3/IMAP server - Solr support


Kind regards,
André
























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