Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754189AbaAWTuT (ORCPT ); Thu, 23 Jan 2014 14:50:19 -0500 Received: from mout.gmx.net ([212.227.17.21]:49854 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752271AbaAWTuP (ORCPT ); Thu, 23 Jan 2014 14:50:15 -0500 Message-ID: <52E17273.2030200@gmx.de> Date: Thu, 23 Jan 2014 20:50:11 +0100 From: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Dave Hansen , Linux Kernel CC: kernel@gentoo.org, kvm@vger.kernel.org, Gleb Natapov , Paolo Bonzini , Peter Zijlstra Subject: Re: 3.13 hangs when I tried to start a KVM at a 32 bit stable Gentoo References: <52DEA270.60803@gmx.de> <52E165B7.6020506@intel.com> <52E16E83.6060301@intel.com> In-Reply-To: <52E16E83.6060301@intel.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K0:wa0c+9mRG1IHDq5vYHt8T4CRQ5ogJwrvDKhIduS2JSo3pglQMrd 48LgJJbSzIQtwetFgN6QpIAQAO8xCTDr0unxF+9tYh+6XbA3zc9M3TgiBG+gdGQAVsPgGMD LeeicowrBO+syLGzgQFORtVtjn4usDsiLtdmqeGmnQJy/QU2w+YJvo/Z8fOIhLchA8L7OCg 8SVDpOQn9T5/V7BQS9lgQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 01/23/2014 08:33 PM, Dave Hansen wrote: > On 01/23/2014 10:55 AM, Dave Hansen wrote: >> On 01/21/2014 08:38 AM, Toralf Förster wrote: >>> Jan 21 17:18:57 n22 kernel: INFO: rcu_sched self-detected stall on CPU { 2} (t=60001 jiffies g=18494 c=18493 q=183951) >>> Jan 21 17:18:57 n22 kernel: sending NMI to all CPUs: >>> Jan 21 17:18:57 n22 kernel: NMI backtrace for cpu 2 >>> Jan 21 17:18:57 n22 kernel: CPU: 2 PID: 6779 Comm: qemu-system-x86 Not tainted 3.13.0 #3 >>> Jan 21 17:18:57 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013 >>> Jan 21 17:18:57 n22 kernel: task: e921c370 ti: e5f36000 task.ti: e5f36000 >> >> I'm seeing a very similar hang with an ubuntu guest and a custom kernel. >> I'm on commit 0dc3fd0249a, and it's 100% reproducible every time I run KVM. > > Did a little more LKML digging and found this: > > http://marc.info/?l=linux-kernel&m=139038631607917&q=raw > Hhm, that patch cannot be applied to 3.13.0 kernel :-( > Peter's fix works for me. I'm also running a CONFIG_PREEMPT_VOLUNTARY=y > config. > I do have : n22 /usr/src/linux # zgrep CONFIG_PREEMPT /proc/config.gz # CONFIG_PREEMPT_RCU is not set CONFIG_PREEMPT_NOTIFIERS=y # CONFIG_PREEMPT_NONE is not set CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set > What makes the situation really annyoing - sometimes I just can restart my wlan device it the system works normal, but sometimes the whole system hangs and for those cases then sometimes not even sysrq buttons do work. What I see in /var/log/messages are those lines : Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: Error sending POWER_TABLE_CMD: time out after 2000ms. Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: Current CMD queue read_ptr 158 write_ptr 159 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | OK Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | uPc Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | branchlink1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | branchlink2 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | interruptlink1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | data1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | data2 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | line Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | beacon time Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | tsf low Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | tsf hi Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | time gp1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | time gp2 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | time gp3 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | uCode version Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | hw version Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | board version Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | hcmd Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr0 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr1 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr2 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr3 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr4 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | isr_pref Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | wait_event Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | l2p_control Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | l2p_duration Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | l2p_mhvalid Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | l2p_addr_match Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | lmpm_pmg_sel Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | timestamp Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: 0x00000000 | flow_handler Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: Start IWL Event Log Dump: nothing in log Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: set power fail, ret = -110 Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: iwl_trans_wait_tx_queue_empty bad state = 0 Jan 23 19:23:15 n22 kernel: ieee80211 phy0: Hardware restart was requested Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S Jan 23 19:23:15 n22 kernel: iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 Jan 23 19:23:20 n22 kernel: iwlwifi 0000:03:00.0: Failed to load firmware chunk! Jan 23 19:23:20 n22 kernel: iwlwifi 0000:03:00.0: Could not load the [0] uCode section Jan 23 19:23:20 n22 kernel: iwlwifi 0000:03:00.0: Failed to start RT ucode: -110 Jan 23 19:23:20 n22 kernel: iwlwifi 0000:03:00.0: Unable to initialize device. Jan 23 19:23:28 n22 dhcpcd[4878]: wlp3s0: carrier lost Jan 23 19:23:28 n22 kernel: iwlwifi 0000:03:00.0: Fw not loaded - dropping CMD: 1e Jan 23 19:23:28 n22 kernel: iwlwifi 0000:03:00.0: Couldn't flush the AGG queue Jan 23 19:23:28 n22 kernel: iwlwifi 0000:03:00.0: Fw not loaded - dropping CMD: 18 Jan 23 19:23:28 n22 kernel: wlp3s0: HW problem - can not stop rx aggregation for 08:96:d7:05:f9:2a tid 0 Jan 23 19:23:28 n22 kernel: iwlwifi 0000:03:00.0: iwl_trans_wait_tx_queue_empty bad state = 0 Jan 23 19:23:28 n22 kernel: cfg80211: Calling CRDA to update world regulatory domain Jan 23 19:23:28 n22 kernel: cfg80211: World regulatory domain updated: Jan 23 19:23:28 n22 kernel: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Jan 23 19:23:28 n22 kernel: cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Jan 23 19:23:28 n22 kernel: cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Jan 23 19:23:28 n22 kernel: cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Jan 23 19:23:28 n22 kernel: cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Jan 23 19:23:28 n22 kernel: cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Jan 23 19:23:28 n22 wpa_cli: interface wlp3s0 DISCONNECTED Jan 23 19:23:28 n22 wpa_cli: executing 'false /etc/init.d/net.wlp3s0 --quiet stop' failed Jan 23 19:23:28 n22 kernel: iwlwifi 0000:03:00.0: Request scan called when driver not ready. Jan 23 19:23:29 n22 kernel: iwlwifi 0000:03:00.0: Request scan called when driver not ready. Jan 23 19:23:29 n22 ntpd[5421]: Deleting interface #3 wlp3s0, 192.168.178.21#123, interface stats: received=12, sent=12, dropped=0, active_time=188 secs Jan 23 19:23:29 n22 ntpd[5421]: 62.116.162.126 interface 192.168.178.21 -> (none) Jan 23 19:23:29 n22 ntpd[5421]: 131.188.3.220 interface 192.168.178.21 -> (none) Jan 23 19:23:29 n22 ntpd[5421]: 46.165.212.205 interface 192.168.178.21 -> (none) Jan 23 19:23:29 n22 ntpd[5421]: 46.4.54.78 interface 192.168.178.21 -> (none) Jan 23 19:23:29 n22 ntpd[5421]: peers refreshed Jan 23 19:23:30 n22 kernel: iwlwifi 0000:03:00.0: Request scan called when driver not ready. Jan 23 19:23:31 n22 kernel: iwlwifi 0000:03:00.0: Request scan called when driver not ready. Jan 23 19:23:32 n22 kernel: iwlwifi 0000:03:00.0: Request scan called when driver not ready. The last line now repeats every second till I either restart the wlan0 device or the system completely hangs. - -- MfG/Sincerely Toralf Förster pgp finger print:1A37 6F99 4A9D 026F 13E2 4DCF C4EA CDDE 0076 E94E - -- MfG/Sincerely Toralf Förster pgp finger print:1A37 6F99 4A9D 026F 13E2 4DCF C4EA CDDE 0076 E94E -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlLhcnMACgkQxOrN3gB26U5pNgD9Gnd/2LOwCL/Ca2s3eeDje+Zz lzAZKSoLk+VQXn5R0qgA/RZV4WW4BTT/xSc1E378TlmctXQ+AX7iJ/FbgfZXyLvB =Tw8L -----END PGP SIGNATURE----- -- 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/