From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx192.postini.com [74.125.245.192]) by kanga.kvack.org (Postfix) with SMTP id 34DDA6B004A for ; Wed, 14 Mar 2012 02:56:52 -0400 (EDT) Date: Wed, 14 Mar 2012 09:59:04 +0300 From: Dan Carpenter Subject: Re: RCU stalls in linux-next Message-ID: <20120314065904.GA3220@mwanda> References: <20120313134822.GA5158@elgon.mountain> <20120313143327.GA2349@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="opJtzjQTFsWo+cga" Content-Disposition: inline In-Reply-To: <20120313143327.GA2349@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org --opJtzjQTFsWo+cga Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I get these on my netbook as well if I run it for long enough. I just read email on that and do the occasional git pull. regards, dan carpenter [ 3906.306118] eth0: no IPv6 routers present [58395.111474] apt-get used greatest stack depth: 4032 bytes left [231179.224907] apt-get used greatest stack depth: 3632 bytes left [491541.321011] INFO: rcu_sched self-detected stall on CPU { 0} (t=60000 jiffies) [491541.321011] Pid: 576, comm: kswapd0 Not tainted 3.3.0-rc4-next-20120222+ #129 [491541.321011] Call Trace: [491541.321011] [] __rcu_pending+0x19a/0x4d0 [491541.321011] [] ? trigger_load_balance+0x5c/0x2e0 [491541.321011] [] rcu_check_callbacks+0xb0/0x1a0 [491541.321011] [] update_process_times+0x43/0x80 [491541.321011] [] tick_sched_timer+0x5f/0xb0 [491541.321011] [] __run_hrtimer+0x78/0x1d0 [491541.321011] [] ? tick_nohz_handler+0xf0/0xf0 [491541.321011] [] ? __do_softirq+0xf1/0x210 [491541.321011] [] hrtimer_interrupt+0xe3/0x200 [491541.321011] [] ? call_softirq+0x1c/0x30 [491541.321011] [] smp_apic_timer_interrupt+0x64/0xa0 [491541.321011] [] apic_timer_interrupt+0x6b/0x70 [491541.321011] [] ? zone_watermark_ok_safe+0xe3/0x170 [491541.321011] [] balance_pgdat+0x1a8/0x690 [491541.321011] [] kswapd+0x168/0x3f0 [491541.321011] [] ? __schedule+0x3a6/0x750 [491541.321011] [] ? add_wait_queue+0x60/0x60 [491541.321011] [] ? balance_pgdat+0x690/0x690 [491541.321011] [] kthread+0x8e/0xa0 [491541.321011] [] kernel_thread_helper+0x4/0x10 [491541.321011] [] ? kthread_freezable_should_stop+0x70/0x70 [491541.321011] [] ? gs_change+0xb/0xb [491721.324004] INFO: rcu_sched self-detected stall on CPU { 0} (t=240003 jiffies) [491721.324004] Pid: 576, comm: kswapd0 Not tainted 3.3.0-rc4-next-20120222+ #129 [491721.324004] Call Trace: [491721.324004] [] __rcu_pending+0x19a/0x4d0 [491721.324004] [] ? trigger_load_balance+0x5c/0x2e0 [491721.324004] [] rcu_check_callbacks+0xb0/0x1a0 [491721.324004] [] update_process_times+0x43/0x80 [491721.324004] [] tick_sched_timer+0x5f/0xb0 [491721.324004] [] __run_hrtimer+0x78/0x1d0 [491721.324004] [] ? tick_nohz_handler+0xf0/0xf0 [491721.324004] [] ? __do_softirq+0xf1/0x210 [491721.324004] [] hrtimer_interrupt+0xe3/0x200 [491721.324004] [] ? call_softirq+0x1c/0x30 [491721.324004] [] smp_apic_timer_interrupt+0x64/0xa0 [491721.324004] [] apic_timer_interrupt+0x6b/0x70 [491721.324004] [] ? zone_watermark_ok_safe+0xd/0x170 [491721.324004] [] balance_pgdat+0x1a8/0x690 [491721.324004] [] kswapd+0x168/0x3f0 [491721.324004] [] ? __schedule+0x3a6/0x750 [491721.324004] [] ? add_wait_queue+0x60/0x60 [491721.324004] [] ? balance_pgdat+0x690/0x690 [491721.324004] [] kthread+0x8e/0xa0 [491721.324004] [] kernel_thread_helper+0x4/0x10 [491721.324004] [] ? kthread_freezable_should_stop+0x70/0x70 [491721.324004] [] ? gs_change+0xb/0xb [491901.327003] INFO: rcu_sched self-detected stall on CPU { 0} (t=420006 jiffies) --opJtzjQTFsWo+cga Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPYEG3AAoJEOnZkXI/YHqRY+IP/jwWYrSLL37SY4UBaijc9pto 3OzVyaNqpdQ6Dt/y6iGRnPnmOkQclco4HdEwDDdImFvxifWr8fLp61p1Q0EZk9V0 anuICWVPRCE/51328+FEUnsNJaEG6UWgqRaTw1df27xpnlIsXPSQd6WwRkgzDzFc WZxJSf8130nnmWGhlAZ9qypoFlJ2d6Rl8bSyFFC1XJn4R5RtAaQMAp4o//g/xBuW EqN9CSD7Z0GSD9Mys1TEoRm9MuZxvzqSGRsRO+84w7P6eBO3qw9hIOQsYKMBfLRC gIgPtK7fxf24mAgLFz2P2hUMA7ncNr7QbuZKRbM+EPSRQzp8Z6VTp+IFODW1qX9m Jy/WypB5G/5x/vYyj86PqZ6VR8llDXpPRKxaYD9jb6IymJ8fX5CLKQEiz8j/h3UI v2ZMxNMiGufnVkH0VJudtCd5a1pLIlp4iSq9FUb5iyAruWAi2YQ8aOjfuWMY7TQA LYnnPXg97ThxdP8Z+G3LqhCQT3jp7TvZr/C5lmgGOTE3MLgA+Jt7XvxYea1cVcQh QBaP49vzDMuhN2cmGNiVUUBA9NGOZ270XpOxNItC7+QxUW/poU/5ik+FCH0l0OwJ R22G7QtZnXAe7jHQ05+wIj7KIHjxbxEDD+YUPMZMTlA7uLPr5a7nFljbOmoRDENX EBTyDrLZRG4ZHYREk/Yc =cX9e -----END PGP SIGNATURE----- --opJtzjQTFsWo+cga-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org