Messages in this thread | | | From | "Amir Hermelin" <> | Subject | PG_reserved bug | Date | Wed, 26 Nov 2003 12:09:58 +0200 |
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Hi, I've found a bug in the 2.4.20 kernel (might have appeared before), that if the PG_reserved flag is set on a page, its reference count will be incremented but won't be decremented. This is due to the wrong order of lazy if tests in __free_pages().
I have two questions: 1. How do I report it? I found no maintainer for MM in MAINTAINERS 2. I'm writing a module that gets pages (via __get_free_pages) and holds them throughout its lifetime. Where must I check if this page can be taken from under me, without using the reserved bit? In other words, if I want to make sure the behavior is the same with or without the reserved bit, what must I maintain?
Thanks, Amir.
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