From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clark Williams Subject: Re: Suspend on 3.8.x-rtY (was: Re: [ANNOUNCE] 3.8.4-rt2) Date: Thu, 25 Apr 2013 14:35:53 -0500 Message-ID: <20130425143553.1d11603b@riff.lan> References: <20130326201722.GA14220@linutronix.de> <20130408183012.GA5778@linutronix.de> <20130408152558.627dc8b1@riff.lan> <51794718.5040703@linutronix.de> <20130425131459.59fc5249@riff.lan> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/unwhBzJLR9veVgy6V0pL+5F"; protocol="application/pgp-signature" Cc: Paul Gortmaker , linux-rt-users , LKML , Thomas Gleixner To: Sebastian Andrzej Siewior Return-path: In-Reply-To: <20130425131459.59fc5249@riff.lan> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org --Sig_/unwhBzJLR9veVgy6V0pL+5F Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 25 Apr 2013 13:14:59 -0500 Clark Williams wrote: > I notice that nouveau is in there and yes, my laptop uses nouveau as > well. First thing I'll try is some of the pm-suspend quirks regarding gra= phics devices. >=20 > If that doesn't change anything I'll try swapping out the graphics card = in that test box and see > if that makes a difference.=20 >=20 > Clark As a reminder to anyone reading, this is RT specific. Suspend to Ram works fine on vanilla 3.8.x. I tried 'pm-suspend --quirk-save-pci' and that locked up on resume (13 minutes and no activity). I then remembered something Thomas said (see Thomas, my head is not *completely* full of hot air) and ran this: [root@rhelrt-7 ~]# for i in core processors platform devices freezer > do > echo $i > echo $i > /sys/power/pm_test > pm-suspend > done core processors platform devices freezer [root@rhelrt-7 ~]#=20 So all the pm_test modes passed.=20 I replaced the nVidia adapter with an ATI Rage card I had laying around and that did not change the behaviour noted previously (i.e. pause of nearly 10 minutes on resume). So, something is wedged in the resume code and times out after nearly 10 minutes and lets the resume continue. I think I'm going to have to take a long stroll through the resume path code and look for likely candidates.=20 Debugging suggestions welcome. Clark --Sig_/unwhBzJLR9veVgy6V0pL+5F Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iEYEARECAAYFAlF5hZ4ACgkQHyuj/+TTEp3oWwCdEkNjAb03+lJPb/yYFvgkbiUC ynAAoKHUUEMZ9ZRUdUVmSUy0xtdyq0C2 =U1O5 -----END PGP SIGNATURE----- --Sig_/unwhBzJLR9veVgy6V0pL+5F--