[Dovecot] Another Assertion Failure in Current CVS Version

[Todd Burroughs]

This is in the CVS version as of Dec. 12.  A user got a few of these:


dovecot: Dec 14 15:10:29 Error:  23648 imap(username): mbox sync:
UID inserted in the middle of mailbox /mailhome/new/s/h/username/DONE
(1591 > 19, seq=19, idx_msgs=1593)

dovecot: Dec 14 15:10:33 Error:  23648 imap(username): file
mbox-sync-rewrite.c: line 106 (mbox_sync_headers_add_space): assertion
failed: (start_pos < data_size)

dovecot: Dec 14 15:10:40 Error: child 23648 (imap) killed with signal 6

(gdb) bt full
#0  0xffffe410 in ?? ()
No symbol table info available.
#1  0xbffff348 in ?? ()
No symbol table info available.
#2  0x00000006 in ?? ()
No symbol table info available.
#3  0x00005c60 in ?? ()
No symbol table info available.
#4  0xb7ef1d41 in raise () from /lib/tls/libc.so.6
No symbol table info available.
#5  0xb7ef3529 in abort () from /lib/tls/libc.so.6
No symbol table info available.
#6  0x080a17ba in i_internal_panic_handler (
     fmt=0x6 <Address 0x6 out of bounds>,
     args=0x5c60 <Address 0x5c60 out of bounds>) at failures.c:375
No locals.
#7  0x080a1be4 in i_panic (
     format=0x80af28c "file %s: line %d (%s): assertion failed: (%s)")
     at failures.c:173
No locals.
#8  0x08074225 in mbox_sync_headers_add_space (ctx=0xbffff6e0, size=4106)
     at mbox-sync-rewrite.c:99
         data_size = Variable "data_size" is not available.

(gdb) frame 8
#8  0x08074225 in mbox_sync_headers_add_space (ctx=0xbffff6e0, size=4106)
     at mbox-sync-rewrite.c:99
99         start_pos = ctx->hdr_pos[MBOX_HDR_X_KEYWORDS] != (size_t)-1 ?
(gdb) p start_pos
Variable "start_pos" is not available.
(gdb) p data_size
Variable "data_size" is not available.
(gdb) p ctx->hdr_pos[MBOX_HDR_X_KEYWORDS]
$1 = 1344
(gdb) p *ctx->header
$2 = {data = 0x810d2a0, used = 1395}