idmap and winbind may be caching the entries (use "testparm -v" to look for cache or timeout values.) windbind or idmap processes may load data when they start, cache it, but when the cache expires they DON'T reload the data.

Just a guest.  I had this problem with samba 3.0.x but not 3.4.x.

On 10/18/2010 12:31 AM, Christian Huldt wrote:
I have a samba3 server (ubuntu, 3.4.7) joined to a samba4 that has been working 
very nicely but today I got errors:

net ads testjoin
        says the join is OK, but
wbinfo -t

says
        checking the trust secret via RPC calls failed
        Could not check secret


and winbind logs on that machine (samba3) says:
lsa_lookupsids call failed with NT_STATUS_NO_MEMORY - retrying...

However, another samba3 machine that not really used works just fine...

I finally found two stuck winbind processes on the failing samba3 machine, 
after killing them and restarting winbind
everthing was working perfectly again, but I would like to understand the 
problem better.

What would cause winbindd to completely stop responding after running just fine 
for days?

Christian Huldt


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