[Samba] winbind causes Linux to lockup when connectivity to AD is lost (subject line edited for clarity)

Clayton Hill admin at ateamonsite.com
Thu Oct 22 01:55:39 MDT 2009

Hi Jason,

Yup you got the same problem - just going about it a sorta different way
- ouch that must really suck having winbind\ADdomain own the account you 
are logged in as. bummer!
My problem is slightly less serious as I am trying to use my local 
accounts (such as root) and I just use samba as a domain member to host 
files with AD ACLs in the filesystem permissions... but we see the same 
bug. because winbind (even caching) kills access to my local accounts.
I hope this is fixed in 3.4 (I just installed it yesterday) I haven't 
had a chance to run the same test on 3.4

winbind is not caching right to allow smooth operation when the DC is 
offline and the system is virtually locked up
winbind doesnt know the moment it cant connect to the DC that it should 
really use cache or just buzz off and die somehow
winbind may or may not connect back up to the DC immediately

I need to play with parameters and see what the new winbind options in 
3.4 do. I have been on 3.2 until yesterday.

Thanks for the info on the bug report..


Jason Haar wrote:
> Just a FYI, but this looks an awful lot like the bug I reported months ago
> https://bugzilla.samba.org/show_bug.cgi?id=6103
> Basically I'm running Fedora11 with no local accounts (beyond root) -
> relying on winbind. On occasion winbind appears to "hang" - and no local
> access works - including root - which shouldn't need winbind to succeed!
> Normally I have to reboot to fix, however if I was lucky enough for it
> to happen before my screensaver kicked in, then simply restarting
> winbind fixes the problem.

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