From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from penguin.e-mind.com (penguin.e-mind.com [195.223.140.120]) by kvack.org (8.8.7/8.8.7) with ESMTP id HAA19131 for ; Fri, 29 Jan 1999 07:08:55 -0500 Date: Fri, 29 Jan 1999 13:08:28 +0100 (CET) From: Andrea Arcangeli Reply-To: Andrea Arcangeli Subject: Re: [patch] fixed both processes in D state and the /proc/ oopses [Re: [patch] Fixed the race that was oopsing Linux-2.2.0] In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: MOLNAR Ingo Cc: Linus Torvalds , "Stephen C. Tweedie" , linux-kernel@vger.rutgers.edu, werner@suse.de, mlord@pobox.com, "David S. Miller" , gandalf@szene.CH, adamk@3net.net.pl, kiracofe.8@osu.edu, ksi@ksi-linux.COM, djf-lists@ic.NET, tomh@taz.ccs.fau.edu, Alan Cox , linux-mm@kvack.org List-ID: On Fri, 29 Jan 1999, MOLNAR Ingo wrote: > yes, there is no atomic_inc_and_test() yet. (it's a bit tricky to _Where_ do you want to run atomic_inc_and_test()? On random kernel data where incidentally a long time ago there was the just deallocated and reused (somewhere else) mm_struct? If we incidentally access the mm_struct and we notice that the mm->count is zero it menas we are just buggy. > sign flag.) Also note that this is all fiction yet because we _are_ > holding the kernel lock for these situations in 2.2. Sure it's finction, but _all_ complains I get against my s/atomic_t/int/ was about the future. Andrea Arcangeli -- To unsubscribe, send a message with 'unsubscribe linux-mm my@address' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/