Bug Report - Crash on imap with core dump - Alternate storage related

Thu May 12 09:53:47 UTC 2016

Hi Aki!

It was already there: http://pastebin.com/2xA2xuRw

Best,
Daniel Colchete

On Thu, May 12, 2016 at 3:03 AM, Aki Tuomi <aki.tuomi at dovecot.fi> wrote:

>
>
> On 11.05.2016 22:45, Daniel van Ham Colchete wrote:
> > I can confirm that this bug also happens on the latest version available:
> >
> > root at dovecot:/# dovecot --version
> > 2.2.devel (ebf2e93)
> > root at dovecot:/# dpkg -l|grep dovecot
> > ii  dovecot-core               2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - core files
> > ii  dovecot-dbg                2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - debug symbols
> > ii  dovecot-imapd              2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - IMAP daemon
> > ii  dovecot-lmtpd              2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - LMTP server
> > ii  dovecot-lucene             2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - Lucene support
> > ii  dovecot-mysql              2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - MySQL support
> > ii  dovecot-pop3d              2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - POP3 daemon
> > ii  dovecot-sieve              2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - Sieve filters support
> > ii  dovecot-solr               2:2.2.24-1~auto+23        amd64
> >  secure POP3/IMAP server - Solr support
> >
> >
> > On Wed, May 11, 2016 at 4:38 PM, Daniel van Ham Colchete <
> > daniel.colchete at gmail.com> wrote:
> >
> >> I would like to report a bug we are seeing on an new deployment here:
> >>
> >> Linux: Debian Jessie, inside a Docker container
> >> Dovecot version: 2.2.23 (806d709) / 2.2.23-1~bpo8+1
> >> doveconf -n: http://pastebin.com/2xA2xuRw
> >> Filesystem: CephFS - Jewel
> >>
> >> After migrating our users from our old server to our new one we can't
> >> access a few mailboxes. Backtrace follows:
> >>
> >> root at dovecot:/# gdb --args /usr/lib/dovecot/imap -u
> >> daniel.colchete at mav.com.br
> >> GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
> >> Copyright (C) 2014 Free Software Foundation, Inc.
> >> License GPLv3+: GNU GPL version 3 or later <
> >> http://gnu.org/licenses/gpl.html>
> >> This is free software: you are free to change and redistribute it.
> >> There is NO WARRANTY, to the extent permitted by law.  Type "show
> copying"
> >> and "show warranty" for details.
> >> This GDB was configured as "x86_64-linux-gnu".
> >> Type "show configuration" for configuration details.
> >> For bug reporting instructions, please see:
> >> <http://www.gnu.org/software/gdb/bugs/>.
> >> Find the GDB manual and other documentation resources online at:
> >> <http://www.gnu.org/software/gdb/documentation/>.
> >> For help, type "help".
> >> Type "apropos word" to search for commands related to "word"...
> >> Reading symbols from /usr/lib/dovecot/imap...Reading symbols from
> >>
> /usr/lib/debug/.build-id/e2/488f839ac2b10504ef74b1b2f2146891ca2f62.debug...done.
> >> done.
> >> (gdb) run
> >> Starting program: /usr/lib/dovecot/imap -u daniel.colchete at mav.com.br
> >> * PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID
> ENABLE
> >> IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS
> THREAD=ORDEREDSUBJECT
> >> MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS
> >> LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES
> WITHIN
> >> CONTEXT=SEARCH LIST-STATUS BINARY MOVE SPECIAL-USE QUOTA] Logged in as
> >> daniel.colchete at mav.com.br
> >> a select INBOX
> >>
> >> Program received signal SIGSEGV, Segmentation fault.
> >> strrchr () at ../sysdeps/x86_64/strrchr.S:32
> >> 32      ../sysdeps/x86_64/strrchr.S: No such file or directory.
> >> (gdb) where
> >> #0  strrchr () at ../sysdeps/x86_64/strrchr.S:32
> >> #1  0x00007ffff7b0a261 in sdbox_file_move (file=file at entry
> =0x5555557e6530,
> >> alt_path=alt_path at entry=true) at sdbox-file.c:312
> >> #2  0x00007ffff7b0cd11 in dbox_sync_file_move_if_needed
> >> (type=SDBOX_SYNC_ENTRY_TYPE_MOVE_TO_ALT, file=0x5555557e6530) at
> >> sdbox-sync.c:30
> >> #3  sdbox_sync_file (type=SDBOX_SYNC_ENTRY_TYPE_MOVE_TO_ALT, uid=13120,
> >> seq=819, ctx=0x5555557e32e0) at sdbox-sync.c:58
> >> #4  sdbox_sync_add (sync_rec=0x7fffffffe570, ctx=0x5555557e32e0) at
> >> sdbox-sync.c:96
> >> #5  sdbox_sync_index (ctx=0x5555557e32e0) at sdbox-sync.c:131
> >> #6  sdbox_sync_begin (mbox=mbox at entry=0x5555557ce500, flags=flags at entry
> =(unknown:
> >> 0), ctx_r=ctx_r at entry=0x7fffffffe680) at sdbox-sync.c:234
> >> #7  0x00007ffff7b0d07d in sdbox_sync (mbox=mbox at entry=0x5555557ce500,
> >> flags=flags at entry=(unknown: 0)) at sdbox-sync.c:297
> >> #8  0x00007ffff7b0d108 in sdbox_storage_sync_init (box=0x5555557ce500,
> >> flags=(MAILBOX_SYNC_FLAG_FULL_READ |
> MAILBOX_SYNC_FLAG_FIX_INCONSISTENT))
> >> at sdbox-sync.c:323
> >> #9  0x00007ffff7aea85b in mailbox_sync_init (box=0x5555557ce500,
> >> flags=(MAILBOX_SYNC_FLAG_FULL_READ |
> MAILBOX_SYNC_FLAG_FIX_INCONSISTENT))
> >> at mail-storage.c:1664
> >> #10 0x00007ffff7aea9a7 in mailbox_sync (box=<optimized out>,
> >> flags=<optimized out>, flags at entry=MAILBOX_SYNC_FLAG_FULL_READ) at
> >> mail-storage.c:1712
> >> #11 0x0000555555568fa0 in select_open (readonly=false,
> mailbox=<optimized
> >> out>, ctx=0x5555557c9928) at cmd-select.c:303
> >> #12 cmd_select_full (cmd=<optimized out>, readonly=<optimized out>) at
> >> cmd-select.c:426
> >> #13 0x000055555556fdbd in command_exec (cmd=cmd at entry=0x5555557c9800)
> at
> >> imap-commands.c:180
> >> #14 0x000055555556e182 in client_command_input (cmd=cmd at entry
> =0x5555557c9800)
> >> at imap-client.c:958
> >> #15 0x000055555556e210 in client_command_input (cmd=0x5555557c9800) at
> >> imap-client.c:1018
> >> #16 0x000055555556e5d5 in client_handle_next_command
> >> (remove_io_r=<synthetic pointer>, client=0x5555557c8c00) at
> >> imap-client.c:1058
> >> #17 client_handle_input (client=0x5555557c8c00) at imap-client.c:1070
> >> #18 0x000055555556ead5 in client_input (client=0x5555557c8c00) at
> >> imap-client.c:1117
> >> #19 0x00007ffff7837c3c in io_loop_call_io (io=0x5555557c96f0) at
> >> ioloop.c:564
> >> #20 0x00007ffff78390a1 in io_loop_handler_run_internal
> (ioloop=ioloop at entry=0x5555557966e0)
> >> at ioloop-epoll.c:220
> >> #21 0x00007ffff7837cc5 in io_loop_handler_run (ioloop=ioloop at entry
> =0x5555557966e0)
> >> at ioloop.c:612
> >> #22 0x00007ffff7837e68 in io_loop_run (ioloop=0x5555557966e0) at
> >> ioloop.c:588
> >> #23 0x00007ffff77ce0e3 in master_service_run (service=0x555555796580,
> >> callback=<optimized out>) at master-service.c:640
> >> #24 0x0000555555561ab2 in main (argc=3, argv=0x555555796390) at
> main.c:454
> >> (gdb)
> >>
> >> One important info is that I used to use Alternate Storage on the older
> >> servers, but the not on the new one. Code seems to be trying to move a
> >> message to an alternate storage that doesn't exist.
> >>
> >> doveadm dump dovecot.index will show that we still have the
> >> ALTERNATE_STORAGE flag set:
> >>
> >> root at dovecot:/srv/dovecot/mail/
> >> mav.com.br/daniel.colchete/mailboxes/INBOX/dbox-Mails# doveadm dump
> >> dovecot.index|grep RECORD|head
> >> -- RECORDS: 932
> >> RECORD: seq=1, uid=9393, flags=0x49 (Seen Answered)
> >> RECORD: seq=2, uid=9442, flags=0x40
> >> RECORD: seq=3, uid=10253, flags=0x48 (Seen)
> >> RECORD: seq=4, uid=10268, flags=0x48 (Seen)
> >> RECORD: seq=5, uid=10283, flags=0x48 (Seen)
> >> RECORD: seq=6, uid=10309, flags=0x48 (Seen)
> >> RECORD: seq=7, uid=10311, flags=0x40
> >> RECORD: seq=8, uid=10324, flags=0x49 (Seen Answered)
> >> RECORD: seq=9, uid=10330, flags=0x48 (Seen)
> >>
> >> Thank you very much.
> >>
> >> Best,
> >> Daniel Colchete
> >>
> Hi!
>
> Thank you for your report, we will have a look. Can you provide output
> of doveconf -n please?
>
> ---
> Aki Tuomi
> Dovecot Oy
>