corrupted mailboxes.db

[Deniss]

Hello,

in case anybody interested, I managed to fix mailboxes.db by this 
technic (I have no shared folders, groups, complex permissions etc)

1. create plain dump file:
  cyr_dbtool /mailboxes.db twoskip show | perl -n -e 'if ( 
~/^([^\t]+)\t%\(A %\(([^\s]+) ([^\)]+)/ ) { print "$1\t0 default 
$2\t$3\t\n"; }' | sort -u >mailboxes.dump
2. import:
  ctl_mboxlist -u <mailboxes.dump

Looks simple, works well

Best,
Deniss

On 20.10.2017 17:52, Deniss wrote:
> Hello,
>
> I run cyrus imap 2.5.11.
> Somehow mailboxes.db become corrupted.
> running `ctl_mboxlist -d` leads to segfault, backtrace below.
>
> How can I recover mailboxes.db ?
>
> Backtrace
> #0  0x0000007d43e12952 in printf (__fmt=0x7d43e143c2 "%s\t%d %s %s\n")
> at /usr/include/bits/stdio2.h:104
> #1  dump_cb (rockp=rockp at entry=0x384c65d6e90, key=<optimized out>,
> keylen=<optimized out>,
>      data=data at entry=0x23d2177d3d5 <error: Cannot access memory at
> address 0x23d2177d3d5>, datalen=datalen at entry=61) at
> imap/ctl_mboxlist.c:182
> #2  0x0000023d432db22a in myforeach (db=0x7d444012d0,
> prefix=0x7d43e144ec "", prefixlen=0, goodp=0x0, cb=0x7d43e12890
> <dump_cb>, rock=0x384c65d6e90,
>      tidptr=<optimized out>) at lib/cyrusdb_twoskip.c:1567
> #3  0x0000023d4363bea7 in mboxlist_allmbox (prefix=<optimized out>,
> proc=0x7d43e12890 <dump_cb>, rock=0x384c65d6e90, incdel=1) at
> imap/mboxlist.c:2326
> #4  0x0000007d43e12e87 in do_dump (op=DUMP, part=0x0, purge=0) at
> imap/ctl_mboxlist.c:458
> #5  0x0000007d43e12548 in main (argc=4, argv=0x384c65d9058) at
> imap/ctl_mboxlist.c:1029
>
>
> Best, Deniss