My guess is that after the reboot the shared memory segment was somehow created by root and not cleaned up. Now when you try to run the scripts as anything else, they try to access the existing one and fail to have permission because that segment is owned by root. And when you run it as root it doesn't clean it up because it didn't create it.

Try running it once by root with the following line at the end: 

(tied $robj->{status})->remove();

[download]
If that doesn't clear things up, my guess is wrong. At that point you need help from someone who understands Unix system administration better than I do. :-(

In reply to Re: IPC::Shareable::SharedMem: shmget: Permission denied by tilly
in thread IPC::Shareable::SharedMem: shmget: Permission denied by katharnakh

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