Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756555Ab2K2BFF (ORCPT ); Wed, 28 Nov 2012 20:05:05 -0500 Received: from ishtar.tlinx.org ([173.164.175.65]:60966 "EHLO Ishtar.sc.tlinx.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756515Ab2K2BFD (ORCPT ); Wed, 28 Nov 2012 20:05:03 -0500 Message-ID: <50B6B4B6.3070304@tlinx.org> Date: Wed, 28 Nov 2012 17:04:54 -0800 From: Linda Walsh User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Cong Wang CC: LKML , Linux Kernel Network Developers Subject: Re: BUG: scheduling while atomic: ifup-bonding/3711/0x00000002 -- V3.6.7 References: <50B5248A.5010908@tlinx.org> <50B67F6B.6050008@tlinx.org> In-Reply-To: <50B67F6B.6050008@tlinx.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 13524 Lines: 254 Cong Wang wrote: > On Wed, Nov 28, 2012 at 4:37 AM, Linda Walsh wrote: >> Is this a known problem / bug, or should I file a bug on it? > Does this quick fix help? > ... > Thanks! > Applied: --- bond_main.c.orig 2012-09-30 16:47:46.000000000 -0700 +++ bond_main.c 2012-11-28 12:58:34.064931997 -0800 @@ -1778,7 +1778,9 @@ new_slave->link == BOND_LINK_DOWN ? "DOWN" : (new_slave->link == BOND_LINK_UP ? "UP" : "BACK")); + read_unlock(&bond->lock); bond_update_speed_duplex(new_slave); + read_lock(&bond->lock); if (USES_PRIMARY(bond->params.mode) && bond->params.primary[0]) { /* if there is a primary slave, remember it */ ---- Recompile/run: Linux Ishtar 3.6.8-Isht-Van #4 SMP PREEMPT Wed Nov 28 12:59:13 PST 2012 x86_64 x86_64 x86_64 GNU/Linux --- Similar. The tracebacks are below. Since I am running in round-robin, trying for RAID0 of the 2 links-- simple bandwidth aggregation, do I even need miimon? I mean, what load is there to balance? Not that this is likely the root of the bug, but it might make it not happen in my case, if I remove the load-bal stuff...?? [ 52.457633] bonding: bond0: Adding slave p2p1. [ 52.941390] bonding: bond0: enslaving p2p1 as an active interface with a down link. [ 52.959329] bonding: bond0: Adding slave p2p2. [ 53.442769] bonding: bond0: enslaving p2p2 as an active interface with a down link. [ 58.588410] ixgbe 0000:06:00.0: p2p1: NIC Link is Up 10 Gbps, Flow Control: None [ 58.666760] BUG: scheduling while atomic: kworker/u:1/103/0x00000002 [ 58.673144] 4 locks held by kworker/u:1/103: [ 58.673145] #0: ((bond_dev->name)){......}, at: [] process_one_work+0x146/0x680 [ 58.673161] #1: ((&(&bond->mii_work)->work)){......}, at: [] process_one_work+0x146/0x680 [ 58.673167] #2: (rtnl_mutex){......}, at: [] rtnl_trylock+0x10/0x20 [ 58.673175] #3: (&bond->lock){......}, at: [] bond_mii_monitor+0x2ed/0x640 [ 58.673183] Modules linked in: fan kvm_intel mousedev kvm iTCO_wdt iTCO_vendor_support acpi_cpufreq tpm_tis tpm tpm_bios mperf processor [ 58.673196] Pid: 103, comm: kworker/u:1 Not tainted 3.6.8-Isht-Van #4 [ 58.673198] Call Trace: [ 58.673203] [] __schedule_bug+0x5e/0x6c [ 58.673208] [] __schedule+0x77c/0x810 [ 58.673211] [] schedule+0x24/0x70 [ 58.673214] [] schedule_hrtimeout_range_clock+0xfc/0x140 [ 58.673218] [] ? update_rmtp+0x60/0x60 [ 58.673222] [] ? hrtimer_start_range_ns+0xf/0x20 [ 58.673225] [] schedule_hrtimeout_range+0xe/0x10 [ 58.673229] [] usleep_range+0x3b/0x40 [ 58.673235] [] ixgbe_acquire_swfw_sync_X540+0xbc/0x110 [ 58.673238] [] ixgbe_read_phy_reg_generic+0x3d/0x120 [ 58.673241] [] ixgbe_get_copper_link_capabilities_generic+0x2c/0x60 [ 58.673244] [] ? bond_mii_monitor+0x2ed/0x640 [ 58.673248] [] ixgbe_get_settings+0x34/0x2b0 [ 58.673253] [] __ethtool_get_settings+0x85/0x140 [ 58.673256] [] bond_update_speed_duplex+0x23/0x60 [ 58.673259] [] bond_mii_monitor+0x354/0x640 [ 58.673262] [] process_one_work+0x1a7/0x680 [ 58.673264] [] ? process_one_work+0x146/0x680 [ 58.673269] [] ? put_lock_stats.isra.21+0xe/0x40 [ 58.673279] [] ? bond_loadbalance_arp_mon+0x2c0/0x2c0 [ 58.673286] [] worker_thread+0x18d/0x4f0 [ 58.673296] [] ? sub_preempt_count+0x51/0x60 [ 58.673303] [] ? manage_workers+0x320/0x320 [ 58.673312] [] kthread+0x9d/0xb0 [ 58.673317] [] kernel_thread_helper+0x4/0x10 [ 58.673320] [] ? finish_task_switch+0x77/0x100 [ 58.673323] [] ? _raw_spin_unlock_irq+0x36/0x60 [ 58.673326] [] ? retint_restore_args+0xe/0xe [ 58.673329] [] ? flush_kthread_worker+0x160/0x160 [ 58.673332] [] ? gs_change+0xb/0xb [ 58.676704] BUG: scheduling while atomic: kworker/u:1/103/0x00000002 [ 58.683107] 4 locks held by kworker/u:1/103: [ 58.683109] #0: ((bond_dev->name)){......}, at: [] process_one_work+0x146/0x680 [ 58.683120] #1: ((&(&bond->mii_work)->work)){......}, at: [] process_one_work+0x146/0x680 [ 58.683128] #2: (rtnl_mutex){......}, at: [] rtnl_trylock+0x10/0x20 [ 58.683136] #3: (&bond->lock){......}, at: [] bond_mii_monitor+0x2ed/0x640 [ 58.683145] Modules linked in: fan kvm_intel mousedev kvm iTCO_wdt iTCO_vendor_support acpi_cpufreq tpm_tis tpm tpm_bios mperf processor [ 58.683162] Pid: 103, comm: kworker/u:1 Tainted: G W 3.6.8-Isht-Van #4 [ 58.683164] Call Trace: [ 58.683170] [] __schedule_bug+0x5e/0x6c [ 58.683175] [] __schedule+0x77c/0x810 [ 58.683180] [] schedule+0x24/0x70 [ 58.683184] [] schedule_hrtimeout_range_clock+0xfc/0x140 [ 58.683189] [] ? update_rmtp+0x60/0x60 [ 58.683194] [] ? update_rmtp+0x60/0x60 [ 58.683198] [] ? hrtimer_start_range_ns+0xf/0x20 [ 58.683203] [] schedule_hrtimeout_range+0xe/0x10 [ 58.683208] [] usleep_range+0x3b/0x40 [ 58.683213] [] ixgbe_release_swfw_sync_X540+0x4e/0x60 [ 58.683217] [] ixgbe_read_phy_reg_generic+0x101/0x120 [ 58.683222] [] ixgbe_get_copper_link_capabilities_generic+0x2c/0x60 [ 58.683227] [] ? bond_mii_monitor+0x2ed/0x640 [ 58.683231] [] ixgbe_get_settings+0x34/0x2b0 [ 58.683237] [] __ethtool_get_settings+0x85/0x140 [ 58.683241] [] bond_update_speed_duplex+0x23/0x60 [ 58.683246] [] bond_mii_monitor+0x354/0x640 [ 58.683250] [] process_one_work+0x1a7/0x680 [ 58.683254] [] ? process_one_work+0x146/0x680 [ 58.683259] [] ? put_lock_stats.isra.21+0xe/0x40 [ 58.683264] [] ? bond_loadbalance_arp_mon+0x2c0/0x2c0 [ 58.683268] [] worker_thread+0x18d/0x4f0 [ 58.683273] [] ? sub_preempt_count+0x51/0x60 [ 58.683278] [] ? manage_workers+0x320/0x320 [ 58.683283] [] kthread+0x9d/0xb0 [ 58.683288] [] kernel_thread_helper+0x4/0x10 [ 58.683293] [] ? finish_task_switch+0x77/0x100 [ 58.683297] [] ? _raw_spin_unlock_irq+0x36/0x60 [ 58.683301] [] ? retint_restore_args+0xe/0xe [ 58.683306] [] ? flush_kthread_worker+0x160/0x160 [ 58.683311] [] ? gs_change+0xb/0xb [ 58.686755] bonding: bond0: link status definitely up for interface p2p1, 10000 Mbps full duplex. [ 58.943059] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 59.717848] ixgbe 0000:06:00.1: p2p2: NIC Link is Up 10 Gbps, Flow Control: None [ 59.784848] BUG: scheduling while atomic: kworker/u:1/103/0x00000002 [ 59.791219] 4 locks held by kworker/u:1/103: [ 59.791222] #0: ((bond_dev->name)){......}, at: [] process_one_work+0x146/0x680 [ 59.791237] #1: ((&(&bond->mii_work)->work)){......}, at: [] process_one_work+0x146/0x680 [ 59.791245] #2: (rtnl_mutex){......}, at: [] rtnl_trylock+0x10/0x20 [ 59.791256] #3: (&bond->lock){......}, at: [] bond_mii_monitor+0x2ed/0x640 [ 59.791276] Modules linked in: fan kvm_intel mousedev kvm iTCO_wdt iTCO_vendor_support acpi_cpufreq tpm_tis tpm tpm_bios mperf processor [ 59.791296] Pid: 103, comm: kworker/u:1 Tainted: G W 3.6.8-Isht-Van #4 [ 59.791299] Call Trace: [ 59.791306] [] __schedule_bug+0x5e/0x6c [ 59.791312] [] __schedule+0x77c/0x810 [ 59.791317] [] schedule+0x24/0x70 [ 59.791322] [] schedule_hrtimeout_range_clock+0xfc/0x140 [ 59.791329] [] ? update_rmtp+0x60/0x60 [ 59.791334] [] ? hrtimer_start_range_ns+0xf/0x20 [ 59.791339] [] schedule_hrtimeout_range+0xe/0x10 [ 59.791345] [] usleep_range+0x3b/0x40 [ 59.791352] [] ixgbe_acquire_swfw_sync_X540+0xbc/0x110 [ 59.791357] [] ixgbe_read_phy_reg_generic+0x3d/0x120 [ 59.791361] [] ixgbe_get_copper_link_capabilities_generic+0x2c/0x60 [ 59.791366] [] ? bond_mii_monitor+0x2ed/0x640 [ 59.791372] [] ixgbe_get_settings+0x34/0x2b0 [ 59.791381] [] __ethtool_get_settings+0x85/0x140 [ 59.791386] [] bond_update_speed_duplex+0x23/0x60 [ 59.791389] [] bond_mii_monitor+0x354/0x640 [ 59.791393] [] process_one_work+0x1a7/0x680 [ 59.791396] [] ? process_one_work+0x146/0x680 [ 59.791402] [] ? put_lock_stats.isra.21+0xe/0x40 [ 59.791411] [] ? bond_loadbalance_arp_mon+0x2c0/0x2c0 [ 59.791421] [] worker_thread+0x18d/0x4f0 [ 59.791434] [] ? sub_preempt_count+0x51/0x60 [ 59.791442] [] ? manage_workers+0x320/0x320 [ 59.791453] [] kthread+0x9d/0xb0 [ 59.791460] [] kernel_thread_helper+0x4/0x10 [ 59.791464] [] ? finish_task_switch+0x77/0x100 [ 59.791468] [] ? _raw_spin_unlock_irq+0x36/0x60 [ 59.791472] [] ? retint_restore_args+0xe/0xe [ 59.791476] [] ? flush_kthread_worker+0x160/0x160 [ 59.791480] [] ? gs_change+0xb/0xb [ 59.794932] BUG: scheduling while atomic: kworker/u:1/103/0x00000002 [ 59.801333] 4 locks held by kworker/u:1/103: [ 59.801340] #0: ((bond_dev->name)){......}, at: [] process_one_work+0x146/0x680 [ 59.801345] #1: ((&(&bond->mii_work)->work)){......}, at: [] process_one_work+0x146/0x680 [ 59.801350] #2: (rtnl_mutex){......}, at: [] rtnl_trylock+0x10/0x20 [ 59.801356] #3: (&bond->lock){......}, at: [] bond_mii_monitor+0x2ed/0x640 [ 59.801365] Modules linked in: fan kvm_intel mousedev kvm iTCO_wdt iTCO_vendor_support acpi_cpufreq tpm_tis tpm tpm_bios mperf processor [ 59.801368] Pid: 103, comm: kworker/u:1 Tainted: G W 3.6.8-Isht-Van #4 [ 59.801369] Call Trace: [ 59.801373] [] __schedule_bug+0x5e/0x6c [ 59.801380] [] __schedule+0x77c/0x810 [ 59.801385] [] schedule+0x24/0x70 [ 59.801391] [] schedule_hrtimeout_range_clock+0xfc/0x140 [ 59.801395] [] ? update_rmtp+0x60/0x60 [ 59.801399] [] ? update_rmtp+0x60/0x60 [ 59.801404] [] ? hrtimer_start_range_ns+0xf/0x20 [ 59.801409] [] schedule_hrtimeout_range+0xe/0x10 [ 59.801414] [] usleep_range+0x3b/0x40 [ 59.801419] [] ixgbe_release_swfw_sync_X540+0x4e/0x60 [ 59.801424] [] ixgbe_read_phy_reg_generic+0x101/0x120 [ 59.801429] [] ixgbe_get_copper_link_capabilities_generic+0x2c/0x60 [ 59.801433] [] ? bond_mii_monitor+0x2ed/0x640 [ 59.801441] [] ixgbe_get_settings+0x34/0x2b0 [ 59.801446] [] __ethtool_get_settings+0x85/0x140 [ 59.801450] [] bond_update_speed_duplex+0x23/0x60 [ 59.801471] [] bond_mii_monitor+0x354/0x640 [ 59.801475] [] process_one_work+0x1a7/0x680 [ 59.801477] [] ? process_one_work+0x146/0x680 [ 59.801481] [] ? put_lock_stats.isra.21+0xe/0x40 [ 59.801484] [] ? bond_loadbalance_arp_mon+0x2c0/0x2c0 [ 59.801489] [] worker_thread+0x18d/0x4f0 [ 59.801495] [] ? sub_preempt_count+0x51/0x60 [ 59.801500] [] ? manage_workers+0x320/0x320 [ 59.801505] [] kthread+0x9d/0xb0 [ 59.801510] [] kernel_thread_helper+0x4/0x10 [ 59.801515] [] ? finish_task_switch+0x77/0x100 [ 59.801519] [] ? _raw_spin_unlock_irq+0x36/0x60 [ 59.801524] [] ? retint_restore_args+0xe/0xe [ 59.801530] [] ? flush_kthread_worker+0x160/0x160 [ 59.801536] [] ? gs_change+0xb/0xb [ 59.804986] bonding: bond0: link status definitely up for interface p2p2, 10000 Mbps full duplex. -- 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/