From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: 32 bit s2disk on 64 bit kernel Date: Thu, 16 Jun 2011 19:58:23 +0200 Message-ID: <201106161958.23398.rjw@sisk.pl> References: <4DFA1DA5.1010502@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4DFA1DA5.1010502@wasp.net.au> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Brad Campbell Cc: linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org On Thursday, June 16, 2011, Brad Campbell wrote: > Not really, the list is exactly right. :-) > I run an entirely 32 bit userspace on a 64bit kernel. I've compiled suspend-utils from todays git > tree. trying to use s2disk results in the following : > > Is this a supported configuration? No, it isn't. > brad@bklaptop:~$ sudo s2disk > s2disk: Could not use the resume device (try swapon -a). Reason: Invalid argument > brad@bklaptop:~$ dmesg | tail -n3 > [ 823.530812] video LNXVIDEO:00: Restoring backlight state > [ 834.100071] iwlagn 0000:02:00.0: iwlagn_tx_agg_start on ra = 00:26:f2:94:ba:59 tid = 0 > [ 842.392066] iwlagn 0000:02:00.0: iwlagn_tx_agg_start on ra = 00:26:f2:94:ba:59 tid = 0 > > snip of strace > open("resume", O_RDWR|O_LARGEFILE) = 3 > stat64("/dev/snapshot", {st_mode=S_IFCHR|0660, st_rdev=makedev(10, 231), ...}) = 0 > open("/dev/snapshot", O_RDONLY|O_LARGEFILE) = 4 > ioctl(4, 0x400c330d, 0xffe07a3c) = -1 EINVAL (Invalid argument) > ioctl(4, 0x4004330a, 0x805) = -1 EINVAL (Invalid argument) > write(2, "s2disk: Could not use the resume"..., 82s2disk: Could not use the resume device (try > swapon -a). Reason: Invalid argument > > echo mem > /sys/power/state > .. works fine, but no compression, status or encryption. That is a totally different thing, it simply preserves the contents of RAM. Thanks, Rafael