[Dovecot] Segfault in in rc7 when index does not exists

[Marco Nenciarini]

This is the trace

(gdb) run
Starting program: /root/tmp/dovecot-1.0.rc7/src/imap/imap
x select inbox

Program received signal SIGSEGV, Segmentation fault.
mail_index_write_base_header (index=0x80e2a28, hdr=0xaff66028) at mail-index.c:1313
1313                    memcpy(index->map->mmap_base, hdr, hdr_size);
(gdb) bt
#0  mail_index_write_base_header (index=0x80e2a28, hdr=0xaff66028) at mail-index.c:1313
#1  0x080902eb in mail_index_mark_corrupted (index=0x80e2a28) at mail-index.c:1839
#2  0x0809ca30 in mail_transaction_log_file_create (log=0x80e3928, path=0x80d2130 "/dovecot.index.log", dev=0, ino=0, file_size=0) at mail-transaction-log.c:575
#3  0x0809e138 in mail_transaction_log_file_open_or_create (log=0x80e3928, path=0x80d2130 "/dovecot.index.log") at mail-transaction-log.c:803
#4  0x0809e65c in mail_transaction_log_open_or_create (index=0x80e2a28) at mail-transaction-log.c:240
#5  0x08092f21 in mail_index_open (index=0x80e2a28, flags=MAIL_INDEX_OPEN_FLAG_CREATE, lock_method=MAIL_INDEX_LOCK_FCNTL) at mail-index.c:1489
#6  0x0808aa52 in index_storage_mailbox_init (ibox=0x80e3548, index=0x80e2a28, name=0x80c32e4 "INBOX", flags=0, move_to_memory=false) at index-storage.c:362
#7  0x08064d68 in maildir_open (storage=0x80dd420, name=0x80c32e4 "INBOX", flags=<value optimized out>) at maildir-storage.c:487
#8  0x08065628 in maildir_mailbox_open (_storage=0x80dd420, name=0x80c32e4 "INBOX", input=0x0, flags=0) at maildir-storage.c:560
#9  0x08059917 in _cmd_select_full (cmd=0x80dd62c, readonly=false) at cmd-select.c:32
#10 0x08059af7 in cmd_select (cmd=0x80dd62c) at cmd-select.c:92
#11 0x0805b3d4 in _client_input (context=0x80dd5e8) at client.c:377
#12 0x080b7f96 in io_loop_handler_run (ioloop=0x80db9c0) at ioloop-poll.c:199
#13 0x080b7348 in io_loop_run (ioloop=0x80db9c0) at ioloop.c:281
#14 0x0806316e in main (argc=Cannot access memory at address 0x0
) at main.c:280
(gdb) p index->map
$1 = (struct mail_index_map *) 0x0
(gdb)

the envisonment is:

DBOX_ROTATE_DAYS="1"
DBOX_ROTATE_MIN_SIZE="16"
DBOX_ROTATE_SIZE="2048"
DOVECOT_VERSION="1.0.rc7"
HOME="/srv/vmbox/spool/test/"
IMAP_CLIENT_WORKAROUNDS="outlook-idle"
IMAP_MAX_LINE_LENGTH="65536"
IP="::ffff:127.0.0.1"
LOCK_METHOD="fcntl"
LOGGED_IN="1"
LOG_TO_MASTER="1"
MAIL="maildir:/"
MAILBOX_IDLE_CHECK_INTERVAL="30"
MAIL_CACHE_FIELDS="flags"
MAIL_CACHE_MIN_MAIL_COUNT="0"
MAIL_MAX_KEYWORD_LENGTH="50"
MAIL_NEVER_CACHE_FIELDS="imap.envelope"
MBOX_DIRTY_SYNCS="1"
MBOX_DOTLOCK_CHANGE_TIMEOUT="120"
MBOX_LAZY_WRITES="1"
MBOX_LOCK_TIMEOUT="300"
MBOX_MIN_INDEX_SIZE="0"
MBOX_READ_LOCKS="fcntl"
MBOX_WRITE_LOCKS="dotlock fcntl"
POP3_CLIENT_WORKAROUNDS=""
POP3_LOGOUT_FORMAT="top=%t/%p, retr=%r/%b, del=%d/%m, size=%s"
POP3_UIDL_FORMAT=""
RESTRICT_CHROOT="/srv/vmbox/spool/test"
RESTRICT_GID_FIRST="1"
RESTRICT_SETEXTRAGROUPS="mail"
RESTRICT_SETGID="200"
RESTRICT_SETUID="200"
STDERR_CLOSE_SHUTDOWN="1"
SYSLOG_FACILITY="16"
USER="test at prato.linux.it"

The directory /srv/vmbox/spool/test contains:

# find /srv/vmbox/spool/test
/srv/vmbox/spool/test
/srv/vmbox/spool/test/cur
/srv/vmbox/spool/test/new
/srv/vmbox/spool/test/tmp

I hope this is enougth

Please keep me on CC because i'm not subscribed.

Ciao

P.S: the rc8 do exactly the same.

-- 
---------------------------------------------------------------------
|    Marco Nenciarini    | Debian/GNU Linux Developer - Plug Member |
| mnencia at prato.linux.it | http://www.prato.linux.it/~mnencia       |
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Key fingerprint = FED9 69C7 9E67 21F5 7D95  5270 6864 730D F095 E5E4

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