From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 25 Aug 2004 14:35:45 -0700 From: Andrew Morton Subject: Re: [Bug 3268] New: Lowmemory exhaustion problem with v2.6.8.1-mm4 16gb Message-Id: <20040825143545.4786701c.akpm@osdl.org> In-Reply-To: <169840000.1093468741@[10.10.2.4]> References: <1093460701.5677.1881.camel@knk> <20040825135308.2dae6a5d.akpm@osdl.org> <169840000.1093468741@[10.10.2.4]> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: "Martin J. Bligh" Cc: hugh@veritas.com, kmannth@us.ibm.com, linux-mm@kvack.org List-ID: "Martin J. Bligh" wrote: > > > Hugh Dickins wrote: > >> > >> (hmm, does lowmem shortage exert > >> any pressure on highmem cache these days, I wonder?); > > > > It does, indirectly - when we reclaim an unused inode we also shoot down > > all that inode's pagecache. > > ISTR that causes some fairly major problems under mem pressure - when we > go to shrink inode cache, it used to sit there for *ages* trying to free > pagecache, particularly if there were a lot of large dirty files. That > was a few months back ... I never saw a report. > but would anything have fixed that case since then? > No. Probably testing I_DIRTY earlier in prune_icache() would fix it up. -- 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