Unexpected unloading behavior of provider in SFCB

Hi all,

I am seeing some unexpected unloading behaviour of CMPI based C providers in SFCB. It is expected that if any provider has subscriptions lying in the interop/implementation namspace OR on MI cleanup routeins "CMPI_RC_NEVER_UNLOAD" being returned to the cimom, then the provider won't unload. But after doing all these my provider is still getting unloaded after some unspecific (random) amount of time/calls. I have even extended the unload time property in /etc/sfcb/sfcb.cfg to 12000, which I think is more than enough.

To confirm whether the provider is unloaded due to a seg fault, I had set "ulimit -c unlimited" in /etc/init.d/sfcbd script, but did not get any zdump core files. To further convince myself, I wrote a very basic CMPI based C provider, with only the interfaces returning success. This provider had no chance of getting a seg fault ever, but still it won't remain loaded :(.

My query is that, is there any known issues regaring C providers in sfcb related to this unloading pattern? Am I missing anything which could possibly prevent my provider from unloading?

Thanks in advance,
Biswaparatap. 

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