Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762750AbWLKKWO (ORCPT ); Mon, 11 Dec 2006 05:22:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762751AbWLKKWN (ORCPT ); Mon, 11 Dec 2006 05:22:13 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:46394 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762750AbWLKKWN (ORCPT ); Mon, 11 Dec 2006 05:22:13 -0500 Date: Mon, 11 Dec 2006 10:22:07 +0000 From: Al Viro To: Andrew Morton Cc: Andrew MChuck Ebbert <76306.1226@compuserve.com>, linux-kernel , "Linus Torvalds orton " Subject: Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted Message-ID: <20061211102207.GE4587@ftp.linux.org.uk> References: <200612110330_MC3-1-D49B-BC0F@compuserve.com> <20061211005557.04643a75.akpm@osdl.org> <20061211011327.f9478117.akpm@osdl.org> <20061211092130.GB4587@ftp.linux.org.uk> <20061211012545.ed945cbd.akpm@osdl.org> <20061211093314.GC4587@ftp.linux.org.uk> <20061211014727.21c4ab25.akpm@osdl.org> <20061211100301.GD4587@ftp.linux.org.uk> <20061211021718.a6954106.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061211021718.a6954106.akpm@osdl.org> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1199 Lines: 25 On Mon, Dec 11, 2006 at 02:17:18AM -0800, Andrew Morton wrote: > I think we should aim to have as many subsystems ready to go as possible - > ideally all of them. Right now we can potentially run userspace before > AIO, posix-timers, message-queues, BIO, networking, etc are ready to run. > > It looks to be pretty easy to fix... > > > As for that example, I'd love to see specifics - which driver triggers > > hotplug? Presumably it happens from an initcall, so we also have something > > fishy here... > > I don't know in this case - but firmware loading from a statically-linked > driver is a legit thing to do. Umm... statically linked driver that might want firmware shouldn't precede the subsystems unless something is seriously wrong with priorities... IOW, I still wonder what's really going on - pipes are fs_initcall() and any hardware stuff ought to be simple module_init(). So something fishy is going on, regardless of anything else. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/