From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752314Ab1KLHpU (ORCPT ); Sat, 12 Nov 2011 02:45:20 -0500 Received: from mail-bw0-f46.google.com ([209.85.214.46]:56578 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751219Ab1KLHpT (ORCPT ); Sat, 12 Nov 2011 02:45:19 -0500 Date: Sat, 12 Nov 2011 10:48:59 +0300 From: Sergei Trofimovich To: Cc: Andrea Arcangeli Subject: khugepaged blocks suspend2ram (3.2.0-rc1-00252-g8f042aa) Message-ID: <20111112104859.7744b282@sf.home> X-Mailer: Claws Mail 3.7.10 (GTK+ 2.24.5; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/J=43ocn+nKvPRU9psMLPaZV"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/J=43ocn+nKvPRU9psMLPaZV Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable $ cat /sys/kernel/mm/transparent_hugepage/enabled [always] madvise never $ echo mem > /sys/power/state [ 4036.239222] PM: Syncing filesystems ... done. [ 4040.198755] PM: Preparing system for mem sleep [ 4040.625898] Freezing user space processes ... (elapsed 0.01 seconds) don= e. [ 4040.637103] Freezing remaining freezable tasks ...=20 [ 4060.646142] Freezing of tasks failed after 20.00 seconds (1 tasks refusi= ng to freeze, wq_busy=3D0): [ 4060.646180] khugepaged S 0000000000000000 0 514 2 0x0080= 0000 [ 4060.646194] ffff88007b231c70 0000000000000046 ffff88007b231c00 ffffffff= 00000000 [ 4060.646209] ffff88007bb40000 0000000000010ac0 ffff88007b231fd8 ffff8800= 7b230000 [ 4060.646222] 0000000000010ac0 0000000000004000 ffff88007b231fd8 00000000= 00010ac0 [ 4060.646235] Call Trace: [ 4060.646254] [] ? try_to_free_pages+0x71/0x80 [ 4060.646265] [] ? get_parent_ip+0x11/0x50 [ 4060.646275] [] ? add_preempt_count+0x9d/0xd0 [ 4060.646286] [] schedule+0x3a/0x50 [ 4060.646294] [] schedule_timeout+0x158/0x230 [ 4060.646304] [] ? init_timer_deferrable_key+0x20/0x20 [ 4060.646314] [] schedule_timeout_interruptible+0x19/0x= 20 [ 4060.646324] [] khugepaged_alloc_hugepage+0xc7/0xf0 [ 4060.646334] [] ? wake_up_bit+0x40/0x40 [ 4060.646344] [] ? _raw_spin_unlock_irqrestore+0x12/0x40 [ 4060.646353] [] khugepaged+0x9d/0x1240 [ 4060.646364] [] ? wake_up_bit+0x40/0x40 [ 4060.646372] [] ? prepare_pmd_huge_pte.clone.29+0x60/0= x60 [ 4060.646382] [] kthread+0x96/0xa0 [ 4060.646392] [] kernel_thread_helper+0x4/0x10 [ 4060.646403] [] ? kthread_worker_fn+0x190/0x190 [ 4060.646412] [] ? gs_change+0xb/0xb [ 4060.646521]=20 [ 4060.646525] Restarting tasks ... done. [ 4060.660646] video LNXVIDEO:00: Restoring backlight state $ echo never > /sys/kernel/mm/transparent_hugepage/enabled $ cat /sys/kernel/mm/transparent_hugepage/enabled always madvise [never] $ echo mem > /sys/power/state suspended/resumed fine $ uname -a Linux sf 3.2.0-rc1-00252-g8f042aa #159 SMP PREEMPT Sat Nov 12 09:28:53 FET = 2011 x86_64 Intel(R) Core(TM)2 Duo CPU U7600 @ 1.20GHz GenuineIntel GNU/Lin= ux Tried to reproduce 2 times. Both are successful --=20 Sergei --Sig_/J=43ocn+nKvPRU9psMLPaZV Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iEYEARECAAYFAk6+JPEACgkQcaHudmEf86ps7ACfdfpRwHLGGYG5YH+6Rh+RSVMx 0VQAn3lqdvT5KTiKSDJHgUcgP7k9Er+t =cDog -----END PGP SIGNATURE----- --Sig_/J=43ocn+nKvPRU9psMLPaZV--