Re: (ITS#6362) slapd 2.4.19 Segmentation fault under load
- First Post
- Replies
- Stats
-
Go to
- ----- 2023 -----
- March
- February
- January
- ----- 2022 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2021 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2020 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2019 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2018 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2017 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2016 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2015 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2014 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2013 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2012 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2011 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2010 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2009 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2008 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2007 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2006 -----
- December
- November
- October
--IJpNTDwzlM2Ie8A6
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
* mbackes(a)symas.com <mbackes(a)symas.com> [2009-11-10 22:55:10 +0000]:
Hello, Aleksey.
=20
> Openldap 2.4.19 installed from freebsd ports. All configs in defauls =
=20
> Freebsd 7.2 amd64 Slapd built with the "-g" flag and
install with =20
> the make install STRIP=3D""
=20
Okay.
=20
> Used backends db46-4.6.21.4, db47-4.7.25.4 latest from freebsd ports.
=20
> libdb-4.6.so.0 =3D> /usr/local/lib/libdb-4.6.so.0 (0x800a97000)
=20
At the same time? Your ldd list below shows only berkeley db 4.6. =20
These don't mix...
Not same time. I tried with both backends. Results are
same.
=20
> In slapd config added using hdb as backend and indexes. Testing =20
> database consist of 1000 users accounts with minimum attributes. On =
=20
> stress test load slapd Segmentation fault in 10-30 sec.
=20
What sort of operations?
Reading (Binds and searches).=20
Test script is loop of id command checking ldap via nss_ldap.
=20
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x803404560 (LWP 100116)]
> 0x0000000802d5aa4b in hdb_idl_fetch_key (be=3DError accessing memory =
=20
> address
> 0x7ffffd9f9f38: Bad s.
> ) at idl.c:511
=20
Does it always fail at the same location? How reproducible is this?
Often it is
fail in "hdb_idl_fetch_key (be=3DError accessing memory address=
".
100% Reproducible on different hardware. On our normal work, slapd fails
every 2-3 hours, on stress test slapd fail in 10-30 sec.
Problem on freebsd7.x,8 and openldap2.3.43,2.4.18,2.4.19=20
I tryed on debian lenny and openldap2.4.11 and netbsd5.0.1 and
openldap2.4.16 it rock stable.
I think problem some where in freebsd and bdb backends.=20
Because freebsd7.1 openldap2.3.43 with depricated ldbm don`t fail on
reading.=20
Ask if need any information.=20
Also I can give a shell access to testing server.
=20
=20
Matthew Backes
Symas Corporation
mbackes(a)symas.com
--=20
Email: alexs(a)ulgsm.ru
Email/Jabber: alexs(a)ulgsm.ru
--IJpNTDwzlM2Ie8A6
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.13 (FreeBSD)
iQEcBAEBAgAGBQJK+lahAAoJELAIdrQw5JcdnyYIAJrpD8OhUgzabzlAfcSmOZhH
XUM+vzujX4N/czArACk/dXibX3D2AqQxv1CeUs0pI7Bo+iHLG0gsP6UD8k1fvDEg
NecNe1zigD7JEGJDetHTMSXHjYkOvSJsqdBcWjNPuJZn62mg5hVs0S3XdGtqMRxw
4Ck+MwyWiAVQmCDYaXSCEEl6IyGehtD6f5liyNVakHIHG7bZ5MFSm0yP2oMtgxw2
W5vY7nUYK7w3l8ZXqx5pyjQBVBHoUCLFaqHXdXTcBHe3WJ2TQMx6utyvWi3uuqaR
HFmg2NMvJSVnTnQsscxZgd2qILAmAx0SE2wd4D312ywsYZvFSGkzjX50JNpklT0=
=s9Mn
-----END PGP SIGNATURE-----
--IJpNTDwzlM2Ie8A6--
4885
days inactive
4885
days old
0 comments
1 participants
tags (0)
participants (1)
-
alexs＠ulgsm.ru