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SubjectRe: A true story of a crash.
> What if, instead of immediately sending SIGKILL, it sent a gradually
> escalating series of signals, accompanied by suitable printk()s, over a
> period of a few tens of seconds (stopping the process if enough memory
> were freed), with SIGKILL only as a last resort?

On both out of memory and stack limit exceeded you can only send SIGKILL
Think about what happens if you need to allocate a page of user stack..

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