September 12 2010

shmget: [EEXIST][17]: key 52b14804: shared memory already exists.

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I was getting error “shmget: [EEXIST][17]: key 52b14804: shared memory already exists” in online log and I notice OS physical memory and kernel parameters (shmmax) have much more available memory. But Informix instance unable to allocate new shared memory virtual segment during run-time from OS kernel. I notice there is no AF file (Assert Failed) generated.

I have raised a case to IBM Informix and confirm it was encountering IDS bug with product defect number  idsdb00206627.