Re: [RFC] page fault retry with NOPAGE_RETRY
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2006-09-21 22:05:31
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2006-09-21 22:05:31
Also in:
lkml
So I think there's a nasty DoS here if we permit infinite retries. But it's not just that - there might be other situations under really heavy memory pressure where livelocks like this can occur. It's just a general robustness-of-implementation issue.
Got it. Now, changing args to no_page() will be a pretty big task.... Ben. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>