Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757292Ab2J3JvE (ORCPT ); Tue, 30 Oct 2012 05:51:04 -0400 Received: from cantor2.suse.de ([195.135.220.15]:45348 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755430Ab2J3JvB (ORCPT ); Tue, 30 Oct 2012 05:51:01 -0400 Date: Tue, 30 Oct 2012 10:50:50 +0100 (CET) From: Jiri Kosina X-X-Sender: jikos@twin.jikos.cz To: "Rafael J. Wysocki" Cc: Linux Kernel Mailing List , Linus Torvalds , Linux PM list , Greg Kroah-Hartman Subject: Re: Linux 3.7-rc3 In-Reply-To: <26004880.qboZkUVCy9@vostro.rjw.lan> Message-ID: References: <26004880.qboZkUVCy9@vostro.rjw.lan> User-Agent: Alpine 2.00 (LRH 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2034 Lines: 44 On Tue, 30 Oct 2012, Rafael J. Wysocki wrote: > > Nothing particularly stands out here. Lots of small fixes, exemplified > > by the series of memory leak fixes in usb serial drivers. Just a lot > > of random stuff.. > > > > Most of it is drivers (all over: drm, wireless, staging, usb, sound), > > but there's a few filesystem updates (nfs, btrfs, ext4), arch updates > > (arm, x86 and m68k) and just random stuff. Shortlog appended. > > Unfortunately, s2disk is broken with this one and previous -rc. In the > majority of cases it just hangs the machine during hibernation, although > sometimes it returns to user space reporting freezing problems, suspicions > RCU usage and similar stuff, pretty much without any useful debug information. > > I'm quite confident that v3.6 was OK (and -stable based on that too), so > it most likely is a recent regression. The in-kernel hibernation > (ie. "echo disk > /sys/power/state") works no problem. So does suspend to > RAM on my test boxes. > > So far I have been able to reproduce this 100% of the time on two machines > with Intel CPUs and graphics driven by i915. I _suspect_ that this may be > related to VT switching, because s2disk does some ugly things in that area > which are not done by the in-kernel code. Dunno. > > Anyway, it looks like nothing short of bisection is going to help debug this, > but I'm afraid I won't have the time to bisect within the next two weeks, so if > anyone can reproduce this issue and will be able to bisect it, please help > (openSUSE/Tumbleweed users anyone?). Just a data point here -- this is probably not generally true. I am using s2disk very often on my x200s, and I haven't hit this problem so far (currently running 2ab3f29, i.e. slightly before rc3). -- Jiri Kosina SUSE Labs -- 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/