[Samba] Samba 3.5.4: log.smbd: PANIC (pid 16232692): sys_setgroups failed

Gaiseric Vandal gaiseric.vandal at gmail.com
Sun Sep 26 14:47:25 MDT 2010

This may not be related-  but on Solaris there is a ngroup_max system
parameter (default is 16.)  I found solaris 3.4.x would check to see if the
user's group list exceeded this and would panic (by design) if it did.
I don't know if this is to prevent using Windows to bypass Unix security?

Solaris sets this to 16 groups by default to enable compatibility with RPC
authentication for NFS.    When I upgraded from samba 3.0.x to samba 3.4.x
then suddenly 1/2 the users started having windows login problems.

-----Original Message-----
From: samba-bounces at lists.samba.org [mailto:samba-bounces at lists.samba.org]
On Behalf Of walter.van.der.heijden at nl.abnamro.com
Sent: Thursday, September 23, 2010 1:27 AM
To: samba at lists.samba.org
Subject: [Samba] Samba 3.5.4: log.smbd: PANIC (pid 16232692): sys_setgroups


We use Samba 3.5.4 using winbind on AIX.

The issue we have is that some accounts can not access the Samba share. The
belong to the correct Active Directory group. I have googled and I have read
something about too many Active Directory groups. Is this a know issue and
is there a workaround for this?

The issue which occurs:
log.smbd:  PANIC (pid 16232692): sys_setgroups failed

Met vriendelijke groet, Kind regards,

Walter van der Heijden | AIX/RedHat System Specialist
ABN AMRO | I&O /Expertise /Midrange /Unix
Polanerbaan 11 | 3447 GN  Woerden | Netherlands | W04.00.40
Tel.: +31 (0) 30 2260597

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