Linus Torvalds wrote:
Yes, it may screw up some latency stuff, but quite frankly, even with your patch and even ignoring the call_rcu_bh case, I'm convinced you can easily get into the situation where softirqd just doesn't run soon enough.But at least I think I understand _why_ rcu processing was delayed.
Could this be related to the "rename14 LTP test with /tmp as tmpfs and HIGHMEM causes OOM-killer invocation due to zone normal exhaustion" issue?
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