[PATCH] Workaround very slow nss_winbind, fix crash on the AD DC (particularly for backups)

[Philippe.Simonet at swisscom.com]

Hi Andrew,

sorry (my English...) I was not clear. I tried to say that the patch does not change anything for me, 
the crash is still here.

best regards

Philippe


> -----Original Message-----
> From: Andrew Bartlett [mailto:abartlet at samba.org]
> Sent: Friday, June 21, 2013 9:18 AM
> To: Simonet Philippe, ITS-OUS-OP-IFM-NW-IPE
> Cc: samba-technical at samba.org; samba at samba.org;
> qoole.samba at lillimoth.com
> Subject: Re: [PATCH] Workaround very slow nss_winbind, fix crash on the AD
> DC (particularly for backups)
> 
> On Fri, 2013-06-21 at 05:58 +0000, Philippe.Simonet at swisscom.com wrote:
> > Hi Andrew,
> >
> > many thanks for you patch,
> > i tested it on 2 different systems but without success (the crash is always
> happening).
> >
> > before applying the patch, I had a strange problem :  I couldn't
> > reproduce the problem (with wbinfo --uid-info 3000000) on one of the
> > machine. no chance even if I reinstall, re-provision, ...). I finally
> > reboot the machine and after the reboot the crash was reproduceable
> > again (...)
> 
> Thank you for finally getting back to me on this.  After seeing it once, I was
> also unable to reproduce the crash, and so was patching blind.
> This remains illusive.
> 
> Does this alternative patch help?
> 
> > on both machines, what I've done :
> > (...untar...)
> > cd samba-4.0.6
> > patch -p1 < 0001-s4-winbind-Add-special-case-for-BUILTIN-domain.patch
> > ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
> > --enable-fhs make make install rm /etc/samba/smb.conf samba-tool
> > domain provision --dns-backend=BIND9_FLATFILE --server-role=dc
> > --realm TEST.CH  --domain TEST --adminpass=Pa$$w0rd samba -i -M single
> >
> > and ->>>  wbinfo --uid-info 3000000
> >
> > I get :
> > ---------------------
> > samba version 4.0.6 started.
> > Copyright Andrew Tridgell and the Samba Team 1992-2012
> > samba: using 'single' process model
> > Attempting to autogenerate TLS self-signed keys for https for hostname
> 'WZ3.test3.ch'
> > TLS self-signed keys generated OK
> >
> ==========================================================
> =====
> > INTERNAL ERROR: Signal 11 in pid 4844 (4.0.6) Please read the
> > Trouble-Shooting section of the Samba HOWTO
> >
> ==========================================================
> =====
> > PANIC: internal error
> > Aborted
> > ---------------------
> >
> > Best regards
> >
> > Philippe
> 
> Thanks,
> 
> Andrew Bartlett
> 
> --
> Andrew Bartlett                                http://samba.org/~abartlet/
> Authentication Developer, Samba Team           http://samba.org