Re: MDB_BAD_RSLOT while executing slapacl

[Howard Chu <hyc@symas.com>]

Igor Zinovik wrote:
>     Hello.
>
> Today I run slapacl to test access rights and saw this:
> ldap3# sudo slapacl -F /etc/openldap/slapd.d/ ...
> ...
> 52a8ae51 mdb_opinfo_get: err MDB_BAD_RSLOT: Invalid reuse of reader
> locktable slot(-30783)
> read access to o: ALLOWED

Sounds like ITS#7662.
> At
> http://symas.com/mdb/doc/group__errors.html#ga1b6cbb28da30e28c48c9df66dd398bf0
> I read explanation that this error means: Txn has too many dirty pages.

You need to read more carefully.
> slapd 2.4.36 with Linux kernel 3.7.10 x86_64.
>
> In my slapd I have single database with mdb backend:
> dn: olcDatabase={1}mdb,config
> ...
> olcDbNoSync: FALSE
> olcDbMaxSize: 1073741824
> olcDbMode: 0600
> olcDbSearchStack: 16
>
> Two questions:
> 0. What might cause this error?
> 1. Should I worry about this?

You should upgrade to get the fix for #7662.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/