From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 25 Aug 2004 15:05:58 +0100 (BST) From: Hugh Dickins Subject: Re: [Bug 3268] New: Lowmemory exhaustion problem with v2.6.8.1-mm4 16gb In-Reply-To: <1093400029.5677.1866.camel@knk> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linux-mm@kvack.org Return-Path: To: keith Cc: Andrew Morton , linux-mm@kvack.org List-ID: On Tue, 24 Aug 2004, keith wrote: > > Ok I created an attachment in the bug for the slab/buddy/mem info. > You can watch zone normal get exhausted :) > http://bugme.osdl.org/show_bug.cgi?id=3268 Thanks. Yes, your lowmem is full of Slab, and that's entirely unsurprising since you have CONFIG_DEBUG_PAGEALLOC on: so every slab object needs a full 4096-byte page to itself (well, there are some exceptions, but that doesn't change the picture). That's a _very_ distorting config option, and I think this means that your report is of no interest in itself - sorry. But it does raise a valid question whether it can happen in real, non-debug life - thanks. I'll do the arithmetic on that when I've more leisure: I expect the answer to be that it can happen, and I ought to adjust defaulting of maximum tmpfs inodes. Hugh -- 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: aart@kvack.org