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Message-ID: <50B6B4B6.3070304@tlinx.org>
Date: Wed, 28 Nov 2012 17:04:54 -0800
From: Linda Walsh <lkml@...nx.org>
To: Cong Wang <xiyou.wangcong@...il.com>
CC: LKML <linux-kernel@...r.kernel.org>,
Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: BUG: scheduling while atomic: ifup-bonding/3711/0x00000002 -- V3.6.7
Cong Wang wrote:
> On Wed, Nov 28, 2012 at 4:37 AM, Linda Walsh <lkml@...nx.org> 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:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 58.673161] #1: ((&(&bond->mii_work)->work)){......}, at:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 58.673167] #2: (rtnl_mutex){......}, at: [<ffffffff815a4dd0>]
rtnl_trylock+0x10/0x20
[ 58.673175] #3: (&bond->lock){......}, at: [<ffffffff81480b5d>]
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] [<ffffffff8167bb36>] __schedule_bug+0x5e/0x6c
[ 58.673208] [<ffffffff816859bc>] __schedule+0x77c/0x810
[ 58.673211] [<ffffffff81685ad4>] schedule+0x24/0x70
[ 58.673214] [<ffffffff81684bec>]
schedule_hrtimeout_range_clock+0xfc/0x140
[ 58.673218] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 58.673222] [<ffffffff81065a1f>] ? hrtimer_start_range_ns+0xf/0x20
[ 58.673225] [<ffffffff81684c3e>] schedule_hrtimeout_range+0xe/0x10
[ 58.673229] [<ffffffff8104bddb>] usleep_range+0x3b/0x40
[ 58.673235] [<ffffffff814d220c>] ixgbe_acquire_swfw_sync_X540+0xbc/0x110
[ 58.673238] [<ffffffff814ce4dd>] ixgbe_read_phy_reg_generic+0x3d/0x120
[ 58.673241] [<ffffffff814ce74c>]
ixgbe_get_copper_link_capabilities_generic+0x2c/0x60
[ 58.673244] [<ffffffff81480b5d>] ? bond_mii_monitor+0x2ed/0x640
[ 58.673248] [<ffffffff814c6454>] ixgbe_get_settings+0x34/0x2b0
[ 58.673253] [<ffffffff8159af55>] __ethtool_get_settings+0x85/0x140
[ 58.673256] [<ffffffff8147c6e3>] bond_update_speed_duplex+0x23/0x60
[ 58.673259] [<ffffffff81480bc4>] bond_mii_monitor+0x354/0x640
[ 58.673262] [<ffffffff8105a9b7>] process_one_work+0x1a7/0x680
[ 58.673264] [<ffffffff8105a956>] ? process_one_work+0x146/0x680
[ 58.673269] [<ffffffff8108c7ce>] ? put_lock_stats.isra.21+0xe/0x40
[ 58.673279] [<ffffffff81480870>] ? bond_loadbalance_arp_mon+0x2c0/0x2c0
[ 58.673286] [<ffffffff8105b9ed>] worker_thread+0x18d/0x4f0
[ 58.673296] [<ffffffff81070991>] ? sub_preempt_count+0x51/0x60
[ 58.673303] [<ffffffff8105b860>] ? manage_workers+0x320/0x320
[ 58.673312] [<ffffffff81060f7d>] kthread+0x9d/0xb0
[ 58.673317] [<ffffffff816892e4>] kernel_thread_helper+0x4/0x10
[ 58.673320] [<ffffffff8106c197>] ? finish_task_switch+0x77/0x100
[ 58.673323] [<ffffffff81687526>] ? _raw_spin_unlock_irq+0x36/0x60
[ 58.673326] [<ffffffff81687a5d>] ? retint_restore_args+0xe/0xe
[ 58.673329] [<ffffffff81060ee0>] ? flush_kthread_worker+0x160/0x160
[ 58.673332] [<ffffffff816892e0>] ? 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:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 58.683120] #1: ((&(&bond->mii_work)->work)){......}, at:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 58.683128] #2: (rtnl_mutex){......}, at: [<ffffffff815a4dd0>]
rtnl_trylock+0x10/0x20
[ 58.683136] #3: (&bond->lock){......}, at: [<ffffffff81480b5d>]
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] [<ffffffff8167bb36>] __schedule_bug+0x5e/0x6c
[ 58.683175] [<ffffffff816859bc>] __schedule+0x77c/0x810
[ 58.683180] [<ffffffff81685ad4>] schedule+0x24/0x70
[ 58.683184] [<ffffffff81684bec>]
schedule_hrtimeout_range_clock+0xfc/0x140
[ 58.683189] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 58.683194] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 58.683198] [<ffffffff81065a1f>] ? hrtimer_start_range_ns+0xf/0x20
[ 58.683203] [<ffffffff81684c3e>] schedule_hrtimeout_range+0xe/0x10
[ 58.683208] [<ffffffff8104bddb>] usleep_range+0x3b/0x40
[ 58.683213] [<ffffffff814d213e>] ixgbe_release_swfw_sync_X540+0x4e/0x60
[ 58.683217] [<ffffffff814ce5a1>] ixgbe_read_phy_reg_generic+0x101/0x120
[ 58.683222] [<ffffffff814ce74c>]
ixgbe_get_copper_link_capabilities_generic+0x2c/0x60
[ 58.683227] [<ffffffff81480b5d>] ? bond_mii_monitor+0x2ed/0x640
[ 58.683231] [<ffffffff814c6454>] ixgbe_get_settings+0x34/0x2b0
[ 58.683237] [<ffffffff8159af55>] __ethtool_get_settings+0x85/0x140
[ 58.683241] [<ffffffff8147c6e3>] bond_update_speed_duplex+0x23/0x60
[ 58.683246] [<ffffffff81480bc4>] bond_mii_monitor+0x354/0x640
[ 58.683250] [<ffffffff8105a9b7>] process_one_work+0x1a7/0x680
[ 58.683254] [<ffffffff8105a956>] ? process_one_work+0x146/0x680
[ 58.683259] [<ffffffff8108c7ce>] ? put_lock_stats.isra.21+0xe/0x40
[ 58.683264] [<ffffffff81480870>] ? bond_loadbalance_arp_mon+0x2c0/0x2c0
[ 58.683268] [<ffffffff8105b9ed>] worker_thread+0x18d/0x4f0
[ 58.683273] [<ffffffff81070991>] ? sub_preempt_count+0x51/0x60
[ 58.683278] [<ffffffff8105b860>] ? manage_workers+0x320/0x320
[ 58.683283] [<ffffffff81060f7d>] kthread+0x9d/0xb0
[ 58.683288] [<ffffffff816892e4>] kernel_thread_helper+0x4/0x10
[ 58.683293] [<ffffffff8106c197>] ? finish_task_switch+0x77/0x100
[ 58.683297] [<ffffffff81687526>] ? _raw_spin_unlock_irq+0x36/0x60
[ 58.683301] [<ffffffff81687a5d>] ? retint_restore_args+0xe/0xe
[ 58.683306] [<ffffffff81060ee0>] ? flush_kthread_worker+0x160/0x160
[ 58.683311] [<ffffffff816892e0>] ? 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:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 59.791237] #1: ((&(&bond->mii_work)->work)){......}, at:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 59.791245] #2: (rtnl_mutex){......}, at: [<ffffffff815a4dd0>]
rtnl_trylock+0x10/0x20
[ 59.791256] #3: (&bond->lock){......}, at: [<ffffffff81480b5d>]
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] [<ffffffff8167bb36>] __schedule_bug+0x5e/0x6c
[ 59.791312] [<ffffffff816859bc>] __schedule+0x77c/0x810
[ 59.791317] [<ffffffff81685ad4>] schedule+0x24/0x70
[ 59.791322] [<ffffffff81684bec>]
schedule_hrtimeout_range_clock+0xfc/0x140
[ 59.791329] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 59.791334] [<ffffffff81065a1f>] ? hrtimer_start_range_ns+0xf/0x20
[ 59.791339] [<ffffffff81684c3e>] schedule_hrtimeout_range+0xe/0x10
[ 59.791345] [<ffffffff8104bddb>] usleep_range+0x3b/0x40
[ 59.791352] [<ffffffff814d220c>] ixgbe_acquire_swfw_sync_X540+0xbc/0x110
[ 59.791357] [<ffffffff814ce4dd>] ixgbe_read_phy_reg_generic+0x3d/0x120
[ 59.791361] [<ffffffff814ce74c>]
ixgbe_get_copper_link_capabilities_generic+0x2c/0x60
[ 59.791366] [<ffffffff81480b5d>] ? bond_mii_monitor+0x2ed/0x640
[ 59.791372] [<ffffffff814c6454>] ixgbe_get_settings+0x34/0x2b0
[ 59.791381] [<ffffffff8159af55>] __ethtool_get_settings+0x85/0x140
[ 59.791386] [<ffffffff8147c6e3>] bond_update_speed_duplex+0x23/0x60
[ 59.791389] [<ffffffff81480bc4>] bond_mii_monitor+0x354/0x640
[ 59.791393] [<ffffffff8105a9b7>] process_one_work+0x1a7/0x680
[ 59.791396] [<ffffffff8105a956>] ? process_one_work+0x146/0x680
[ 59.791402] [<ffffffff8108c7ce>] ? put_lock_stats.isra.21+0xe/0x40
[ 59.791411] [<ffffffff81480870>] ? bond_loadbalance_arp_mon+0x2c0/0x2c0
[ 59.791421] [<ffffffff8105b9ed>] worker_thread+0x18d/0x4f0
[ 59.791434] [<ffffffff81070991>] ? sub_preempt_count+0x51/0x60
[ 59.791442] [<ffffffff8105b860>] ? manage_workers+0x320/0x320
[ 59.791453] [<ffffffff81060f7d>] kthread+0x9d/0xb0
[ 59.791460] [<ffffffff816892e4>] kernel_thread_helper+0x4/0x10
[ 59.791464] [<ffffffff8106c197>] ? finish_task_switch+0x77/0x100
[ 59.791468] [<ffffffff81687526>] ? _raw_spin_unlock_irq+0x36/0x60
[ 59.791472] [<ffffffff81687a5d>] ? retint_restore_args+0xe/0xe
[ 59.791476] [<ffffffff81060ee0>] ? flush_kthread_worker+0x160/0x160
[ 59.791480] [<ffffffff816892e0>] ? 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:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 59.801345] #1: ((&(&bond->mii_work)->work)){......}, at:
[<ffffffff8105a956>] process_one_work+0x146/0x680
[ 59.801350] #2: (rtnl_mutex){......}, at: [<ffffffff815a4dd0>]
rtnl_trylock+0x10/0x20
[ 59.801356] #3: (&bond->lock){......}, at: [<ffffffff81480b5d>]
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] [<ffffffff8167bb36>] __schedule_bug+0x5e/0x6c
[ 59.801380] [<ffffffff816859bc>] __schedule+0x77c/0x810
[ 59.801385] [<ffffffff81685ad4>] schedule+0x24/0x70
[ 59.801391] [<ffffffff81684bec>]
schedule_hrtimeout_range_clock+0xfc/0x140
[ 59.801395] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 59.801399] [<ffffffff81064c80>] ? update_rmtp+0x60/0x60
[ 59.801404] [<ffffffff81065a1f>] ? hrtimer_start_range_ns+0xf/0x20
[ 59.801409] [<ffffffff81684c3e>] schedule_hrtimeout_range+0xe/0x10
[ 59.801414] [<ffffffff8104bddb>] usleep_range+0x3b/0x40
[ 59.801419] [<ffffffff814d213e>] ixgbe_release_swfw_sync_X540+0x4e/0x60
[ 59.801424] [<ffffffff814ce5a1>] ixgbe_read_phy_reg_generic+0x101/0x120
[ 59.801429] [<ffffffff814ce74c>]
ixgbe_get_copper_link_capabilities_generic+0x2c/0x60
[ 59.801433] [<ffffffff81480b5d>] ? bond_mii_monitor+0x2ed/0x640
[ 59.801441] [<ffffffff814c6454>] ixgbe_get_settings+0x34/0x2b0
[ 59.801446] [<ffffffff8159af55>] __ethtool_get_settings+0x85/0x140
[ 59.801450] [<ffffffff8147c6e3>] bond_update_speed_duplex+0x23/0x60
[ 59.801471] [<ffffffff81480bc4>] bond_mii_monitor+0x354/0x640
[ 59.801475] [<ffffffff8105a9b7>] process_one_work+0x1a7/0x680
[ 59.801477] [<ffffffff8105a956>] ? process_one_work+0x146/0x680
[ 59.801481] [<ffffffff8108c7ce>] ? put_lock_stats.isra.21+0xe/0x40
[ 59.801484] [<ffffffff81480870>] ? bond_loadbalance_arp_mon+0x2c0/0x2c0
[ 59.801489] [<ffffffff8105b9ed>] worker_thread+0x18d/0x4f0
[ 59.801495] [<ffffffff81070991>] ? sub_preempt_count+0x51/0x60
[ 59.801500] [<ffffffff8105b860>] ? manage_workers+0x320/0x320
[ 59.801505] [<ffffffff81060f7d>] kthread+0x9d/0xb0
[ 59.801510] [<ffffffff816892e4>] kernel_thread_helper+0x4/0x10
[ 59.801515] [<ffffffff8106c197>] ? finish_task_switch+0x77/0x100
[ 59.801519] [<ffffffff81687526>] ? _raw_spin_unlock_irq+0x36/0x60
[ 59.801524] [<ffffffff81687a5d>] ? retint_restore_args+0xe/0xe
[ 59.801530] [<ffffffff81060ee0>] ? flush_kthread_worker+0x160/0x160
[ 59.801536] [<ffffffff816892e0>] ? gs_change+0xb/0xb
[ 59.804986] bonding: bond0: link status definitely up for interface
p2p2, 10000 Mbps full duplex.
--
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