[Dovecot] beta7: assert, Solaris 9

[Jeff A. Earickson]

Hi,

An assertion that I haven't seen before:

Apr 20 11:15:32 emerald dovecot: [ID 107833 mail.error] IMAP(user): file
mbox-sync-rewrite.c: line 106 (mbox_sync_headers_add_space): assertion
failed: (start_pos < data_size)

gdb output from the core file of imap is attached.  My setup:
Solaris 9, mbox format, INBOX is NFS mounted from a Solaris 10
system, imap and imaps only.

Jeff Earickson
Colby College
-------------- next part --------------
%gdb imap core.hacaraba
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This GDB was configured as "sparc-sun-solaris2.9"...
Core was generated by `imap'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/lib/libdl.so.1...done.
Loaded symbols for /usr/lib/libdl.so.1
Reading symbols from /usr/lib/libsocket.so.1...done.
Loaded symbols for /usr/lib/libsocket.so.1
Reading symbols from /usr/lib/libnsl.so.1...done.
Loaded symbols for /usr/lib/libnsl.so.1
Reading symbols from /usr/lib/librt.so.1...done.
Loaded symbols for /usr/lib/librt.so.1
Reading symbols from /usr/lib/libsendfile.so.1...done.
Loaded symbols for /usr/lib/libsendfile.so.1
Reading symbols from /usr/lib/libc.so.1...done.
Loaded symbols for /usr/lib/libc.so.1
Reading symbols from /usr/lib/libmp.so.2...done.
Loaded symbols for /usr/lib/libmp.so.2
Reading symbols from /usr/lib/libaio.so.1...done.
Loaded symbols for /usr/lib/libaio.so.1
Reading symbols from /usr/lib/libmd5.so.1...done.
Loaded symbols for /usr/lib/libmd5.so.1
Reading symbols from /usr/platform/SUNW,Ultra-1/lib/libc_psr.so.1...done.
Loaded symbols for /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
#0  0xff2204f8 in _libc_kill () from /usr/lib/libc.so.1
(gdb) backtrace
#0  0xff2204f8 in _libc_kill () from /usr/lib/libc.so.1
#1  0xff1b6d18 in abort () from /usr/lib/libc.so.1
#2  0x00071fac in i_internal_panic_handler (fmt=0x0, args=0x873e8) at failures.c:375
#3  0x00072398 in i_panic (format=0x873e8 "file %s: line %d (%s): assertion failed: (%s)")
    at failures.c:173
#4  0x0003e5c0 in mbox_sync_headers_add_space (ctx=0x873e8, size=554008) at mbox-sync-rewrite.c:106
#5  0x0003e750 in mbox_sync_try_rewrite (ctx=0xffbff640, move_diff=The value of variable 'move_diff' is distributed across several
locations, and GDB cannot access its value.

) at mbox-sync-rewrite.c:252
#6  0x0003a2c0 in mbox_sync_loop (sync_ctx=0xffbff640, mail_ctx=0x0, partial=Cannot access memory at address 0xffffff9f
) at mbox-sync.c:737
#7  0x0003b650 in mbox_sync (mbox=0x0, flags=4290770496) at mbox-sync.c:1451
#8  0x00032f38 in mbox_storage_close (box=0x1) at mbox-storage.c:1047
#9  0x00063a6c in mailbox_close (_box=Variable "_box" is not available.
) at mail-storage.c:354
#10 0x00021534 in cmd_unselect (cmd=0xffbff8f4) at cmd-unselect.c:18
#11 0x00022050 in _client_input (context=Variable "context" is not available.
) at client.c:375
#12 0x0007760c in io_loop_handler_run (ioloop=0xaf2f8) at ioloop-poll.c:203
#13 0x00076e88 in io_loop_run (ioloop=0xacbf8) at ioloop.c:274
#14 0x0002a3f8 in main (argc=707576, argv=0x1, envp=0x0) at main.c:259
(gdb) up 4
#4  0x0003e5c0 in mbox_sync_headers_add_space (ctx=0x873e8, size=554008) at mbox-sync-rewrite.c:106
106             i_assert(start_pos < data_size);
(gdb) print start_pos
$1 = 0
(gdb) print data_size
$2 = 0
(gdb) print *ctx
$3 = {sync_ctx = 0x66696c65, mail = {uid = 543975790, idx_seq = 1696605540, keywords = {
      buffer = 0x20282573, element_size = 691675233}, flags = 115 's', uid_broken = 0,
    from_offset = 2334660562256225338, body_size = 2317143184821452800, offset = 7881984859801090414,
    space = 7146493963828095348}, seq = 1697538816, hdr_offset = 7166485042769453427,
  body_offset = 8385550126703146593, header_first_change = 1819632991, header_last_change = 1937006962,
  header = 0x745f706f, hdr_md5_sum = "s != 0\000\000\000\000\000\000ctx-",
  content_length = 6877119172238459471, hdr_pos = {1482639428, 1381980255, 1229799760, 1111577413,
    1562386749}, parsed_uid = 539521897, last_uid_value_start_pos = 2053463924, have_eoh = 0,
  need_rewrite = 0, seen_imapbase = 1, pseudo = 0, updated = 1, recent = 0, dirty = 0,
  imapbase_rewrite = 1, imapbase_updated = 0}
(gdb) print size
$4 = 554008
(gdb) print ctx->header
$5 = (string_t *) 0x745f706f
(gdb) print *ctx->header
Cannot access memory at address 0x745f706f
(gdb) print *(ctx->header)
Cannot access memory at address 0x745f706f
(gdb) print &(ctx->header)
$6 = (string_t **) 0x87448
(gdb) print &&(ctx->header)
A syntax error in expression, near `&&(ctx->header)'.
(gdb) print ctx.header
$7 = (string_t *) 0x745f706f
(gdb) print ctx->(*header)
A syntax error in expression, near `(*header)'.
(gdb) quit