* [BUG] soft lockup while booting machine with more than 700 cores
@ 2011-02-09 7:27 raz ben yehuda
2011-02-10 4:47 ` Mike Galbraith
2011-02-10 12:39 ` Ingo Molnar
0 siblings, 2 replies; 8+ messages in thread
From: raz ben yehuda @ 2011-02-09 7:27 UTC (permalink / raw)
To: linux-kernel; +Cc: mingo, raz
Mingo Hello
Bellow is a boot of a 2.6.32.19 kernel over a machine with more than 700 cores. I am failing to boot it due to a soft lockup
in rebalance_domains area. I did not find anything related in mainline git and kernel's bugzilla.
thank you
Raz
[ 929.614315] TCP cubic registered
[ 929.614577] NET: Registered protocol family 17
[ 930.785915] Bridge firewalling registered
[ 930.928396] Freeing unused kernel memory: 1380k freed
===============================================================================
Running /disklessrc
Mounting /proc
Creating /dev
Creating initial device nodes
[ 931.327841] usb 5-1: configuration #1 chosen from 1 choice
[ 931.657469] input: HP Virtual Keyboard as /class/input/input0
[ 931.671560] generic-usb 0003:03F0:1027.0001: input: USB HID v1.01 Keyboard [H
P Virtual Keyboard] on usb-0000:01:04.0-1/input0
[ 931.911480] input: HP Virtual Keyboard as /class/input/input1
[ 931.926135] generic-usb 0003:03F0:1027.0002: input: USB HID v1.01 Mouse [HP V
irtual Keyboard] on usb-0000:01:04.0-1/input1
[ 932.247432] scsi 0:0:0:0: Direct-Access Generic USB Flash Disk 0.00 PQ
: 0 ANSI: 2
[ 932.301626] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 932.416279] sd 0:0:0:0: [sda] 7892992 512-byte logical blocks: (4.04 GB/3.76
GiB)
[ 932.559424] sd 0:0:0:0: [sda] Write Protect is off
[ 932.563238] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 932.802006] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 932.805070] sda: sda1
[ 934.315071] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 934.318055] sd 0:0:0:0: [sda] Attached SCSI removable disk
Loading nfs module... [ 1011.681028] BUG: soft lockup - CPU#240 stuck for 62s! [
swapper:0]
[ 1011.744482] Modules linked in: sunrpc(+)
[ 1011.789117] CPU 240:
[ 1011.828757] Modules linked in: sunrpc(+)
[ 1011.874003] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1011.935843] RIP: 0010:[<ffffffff8105ac32>] [<ffffffff8105ac32>] weighted_cpu
load+0x12/0x20
[ 1012.051597] RSP: 0018:ffff89468e803c88 EFLAGS: 00010286
[ 1012.115020] RAX: 00000000000115c0 RBX: 0000000000000002 RCX: 000000000000001d
[ 1012.162897] RDX: ffff8acd2e840000 RSI: 0000000000000002 RDI: 000000000000021d
[ 1012.243858] RBP: ffffffff81033133 R08: 0000000000000200 R09: ffff894f0ca3d450
[ 1012.309760] R10: 0000000000000000 R11: ffff89468e803dc0 R12: ffff89468e803c00
[ 1012.358023] R13: 00000000000115c0 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1012.417072] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
00000000000
[ 1012.494488] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 1012.559412] CR2: 00000000008d3988 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1012.619828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1012.675491] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1012.739386] Call Trace:
[ 1012.790082] <IRQ> [<ffffffff81039705>] ? sched_clock+0x5/0x10
[ 1012.868687] [<ffffffff8105ac6b>] ? source_load+0x2b/0x70
[ 1012.923473] [<ffffffff810602d5>] ? find_busiest_group+0x1b5/0xa30
[ 1012.973482] [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
[ 1013.031838] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
[ 1013.081837] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
[ 1013.134496] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1013.182834] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1013.246263] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1013.314801] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1013.355605] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1013.391166] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 1013.391166] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1013.478307] <EOI> [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
[ 1013.515916] [<ffffffff8103a481>] ? default_idle+0x21/0x40
[ 1013.572168] [<ffffffff81031537>] ? cpu_idle+0x57/0x90
[ 1112.445978] BUG: soft lockup - CPU#240 stuck for 62s! [swapper:0]
[ 1112.445978] Modules linked in: sunrpc(+)
[ 1112.445978] CPU 240:
[ 1112.445978] Modules linked in: sunrpc(+)
[ 1112.975961] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1112.975961] RIP: 0010:[<ffffffff81063597>] [<ffffffff81063597>] rebalance_do
mains+0x227/0x470
[ 1112.975961] RSP: 0018:ffff89468e803e20 EFLAGS: 00010202
[ 1112.975961] RAX: 0000000000000200 RBX: 00000000000115c0 RCX: 0000000000000073
[ 1112.975961] RDX: 0000000000000200 RSI: 0000000000000200 RDI: 0000000000000000
[ 1112.975961] RBP: ffffffff81033133 R08: 00000000000002c0 R09: 0000000000000000
[ 1112.975961] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff89468e803da0
[ 1112.975961] R13: ffff89468e80d740 R14: 0000000000000000 R15: ffffffff81046ea6
[ 1113.509879] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
00000000000
[ 1113.509879] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 1113.509879] CR2: 00000000008d3988 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1113.509879] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1113.509879] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1113.509879] Call Trace:
[ 1113.509879] <IRQ> [<ffffffff810a21ad>] ? rcu_process_gp_end+0x4d/0xb0
[ 1113.509879] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
[ 1113.509879] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
[ 1114.157064] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1114.214898] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1114.214898] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1114.214898] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1114.214898] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1114.214898] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 1114.214898] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1114.214898] <EOI> [<ffffffff81061dcc>] ? finish_task_switch+0x2c/0xb0
[ 1114.214898] [<ffffffff81583fd7>] ? thread_return+0x3e/0x5a7
[ 1114.214898] [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
[ 1114.214898] [<ffffffff8103154f>] ? cpu_idle+0x6f/0x90
[ 1360.946352] RPC: Registered udp transport module.
[ 1360.959427] RPC: Registered tcp transport module.
[ 1360.971548] RPC: Registered tcp NFSv4.1 backchannel transport module.
Loaded nfs OK.
Mounting /
Running dhclient
[ 1420.218054] bnx2x: eth0 NIC Link is Down
[ 1420.577978] bnx2x: eth0 NIC Link is Down
[ 1420.623026] bnx2x: eth0 NIC Link is Up, 10000 Mbps full duplex, receive & tra
nsmit flow control ON
[ 1481.853029] BUG: soft lockup - CPU#698 stuck for 61s! [swapper:0]
[ 1481.853029] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1481.853029] CPU 698:
[ 1481.884051] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1481.887412] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1481.887412] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1481.911149] RSP: 0018:ffff8b984e683f00 EFLAGS: 00000206
[ 1481.921860] RAX: ffff89948c951fd8 RBX: ffff8b984e683f58 RCX: 00000000000002ba
[ 1481.921860] RDX: 000000000000dea0 RSI: 0000000000000aec RDI: 0000000000000838
[ 1481.931948] RBP: ffffffff81033133 R08: ffff8b984e68b880 R09: 0000000000000010
[ 1481.974484] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff8b984e683e80
[ 1481.987933] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1481.987933] FS: 0000000000000000(0000) GS:ffff8b984e680000(0000) knlGS:00000
00000000000
[ 1482.015278] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1482.026115] CR2: 000000308cc6bf50 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1482.034587] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1482.034587] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1482.051432] Call Trace:
[ 1482.051432] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1482.051432] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1482.061831] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1482.061831] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1482.091501] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1482.091501] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 1482.091501] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1482.118567] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1482.118567] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1482.144403] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1482.144403] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
ssdd[ 1595.728022] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1595.728022] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1595.728022] CPU 78:
[ 1595.728022] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1595.787759] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1595.798002] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1595.799102] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1595.799102] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1595.799102] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1595.799102] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1595.799102] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1595.799102] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1595.799102] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1595.799102] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1595.799102] CR2: 00000000008c53ec CR3: 0000000001001000 CR4: 00000000000026e0
[ 1595.799102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1595.799102] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1595.799102] Call Trace:
[ 1595.799102] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1595.799102] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1595.799102] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1595.799102] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1595.799102] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1595.799102] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1595.799102] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1595.799102] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1595.799102] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1595.799102] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
fffddfsssssd
[ 1615.303908] INFO: task dhclient:18816 blocked for more than 120 seconds.
[ 1615.317018] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1615.329095] dhclient D ffffffff8105b4c9 0 18816 1 0x00000000
[ 1615.345469] ffff8830ecfcc000 0000000000000086 0000000000000000 ffffffff810ab
7b5
[ 1615.374894] ffff8810a7507470 ffff8810a75070c0 ffff8810a7507000 ffff8810a7507
470
[ 1615.396127] 000000010001b475 00000000000006a2 0000000000000001 ffff8810a7df9
e50
[ 1615.419605] Call Trace:
[ 1615.435157] [<ffffffff810ab7b5>] ? __alloc_pages_nodemask+0x105/0x5f0
[ 1615.448307] [<ffffffff8158480b>] ? schedule_timeout+0x18b/0x200
[ 1615.471186] [<ffffffff8103312e>] ? apic_timer_interrupt+0xe/0x20
[ 1615.485216] [<ffffffff8152f9b0>] ? udp_ioctl+0x0/0x70
[ 1615.497141] [<ffffffff8129a8a5>] ? cpumask_any_but+0x25/0x40
[ 1615.519954] [<ffffffff81583b11>] ? wait_for_common+0xe1/0x1c0
[ 1616.069803] [<ffffffff81062f30>] ? default_wake_function+0x0/0x10
[ 1616.078484] [<ffffffff8107ccde>] ? synchronize_sched+0x4e/0x60
[ 1616.088994] [<ffffffff8107cc80>] ? wakeme_after_rcu+0x0/0x10
[ 1616.099977] [<ffffffff815595d7>] ? packet_do_bind+0x117/0x140
[ 1616.112533] [<ffffffff8155a3e4>] ? packet_bind+0x64/0x90
[ 1616.123459] [<ffffffff814d611e>] ? sys_bind+0x7e/0xd0
[ 1616.132543] [<ffffffff810de865>] ? fd_install+0x25/0x60
[ 1616.139984] [<ffffffff814d6364>] ? sock_map_fd+0x54/0x90
[ 1616.153171] [<ffffffff810eeae9>] ? sys_ioctl+0x49/0x80
[ 1616.159763] [<ffffffff81032682>] ? system_call_fastpath+0x16/0x1b
[ 1632.401994] BUG: soft lockup - CPU#242 stuck for 63s! [swapper:0]
[ 1632.401994] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1632.401994] CPU 242:
[ 1633.144839] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1633.144839] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1633.144839] RIP: 0010:[<ffffffff810601ee>] [<ffffffff810601ee>] find_busiest
_group+0xce/0xa30
[ 1633.421004] RSP: 0018:ffff89468e883cb0 EFLAGS: 00010293
[ 1633.421004] RAX: ffff894f0ca19010 RBX: 00000000000115c0 RCX: ffff89468e883db0
[ 1633.519584] RDX: 00000000000000f2 RSI: 0000000000000000 RDI: ffff89468e883db0
[ 1633.585328] RBP: ffffffff81033133 R08: 0000000000000000 R09: ffff89468e883d20
[ 1633.630770] R10: 0000000000000000 R11: 0000000000000001 R12: ffff89468e883c30
[ 1633.701656] R13: 00000000000115c0 R14: 0000000000000000 R15: ffffffff81046ea6
[ 1633.701656] FS: 0000000000000000(0000) GS:ffff89468e880000(0000) knlGS:00000
00000000000
[ 1633.921309] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1633.971582] CR2: 0000000000006000 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1634.066338] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1634.128021] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1634.258303] Call Trace:
[ 1634.346718] <IRQ> [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
[ 1634.462705] [<ffffffff8105b9db>] ? __wake_up_common+0x5b/0x90
[ 1634.557567] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
[ 1634.645974] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
[ 1634.707717] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1634.768124] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1634.817133] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1634.817133] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1634.817133] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1634.817133] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 1634.817133] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1634.817133] <EOI> [<ffffffff81061dcc>] ? finish_task_switch+0x2c/0xb0
[ 1634.817133] [<ffffffff81583fd7>] ? thread_return+0x3e/0x5a7
[ 1634.817133] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1634.817133] [<ffffffff8103154f>] ? cpu_idle+0x6f/0x90
[ 1663.213497] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1663.213497] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1663.213497] CPU 78:
[ 1663.213497] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1663.213497] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1663.213497] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1663.213497] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1663.213497] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1663.213497] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1663.213497] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1663.213497] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1663.213497] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1663.213497] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1663.213497] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1663.213497] CR2: 00000000008c53ec CR3: 0000000001001000 CR4: 00000000000026e0
[ 1663.213497] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1663.213497] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1663.213497] Call Trace:
[ 1663.213497] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1663.213497] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1663.213497] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1663.213497] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1663.213497] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1663.213497] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1663.213497] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1663.213497] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1663.497244] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1663.497244] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1730.806470] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1730.806470] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1730.806470] CPU 78:
[ 1730.806470] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1730.806470] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1730.806470] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
[ 163
[ 163
00003
[ 163
[ 163
[ 163
[ 163
[ 163
[ 163
[ 163
[ 163
[ 163
[ 173
[ 173
[ 173
[ 173
+0x63/0x1407
[ 1730.806470] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1730.806470] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1730.806470] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1730.806470] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1730.806470] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1730.806470] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1730.806470] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1730.806470] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1730.806470] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1730.806470] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1730.806470] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1730.806470] Call Trace:
[ 1730.806470] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1730.806470] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1730.806470] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1730.806470] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1730.806470] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1730.806470] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1730.806470] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1730.806470] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1730.806470] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1730.806470] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1736.647080] INFO: task dhclient:18816 blocked for more than 120 seconds.
[ 1736.668393] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1737.194604] dhclient D ffffffff8105b4c9 0 18816 1 0x00000000
[ 1737.217687] ffff8830ecfcc000 0000000000000086 0000000000000000 ffffffff810ab
7b5
[ 1737.249033] ffff8810a7507470 ffff8810a75070c0 ffff8810a7507000 ffff8810a7507
470
[ 1737.813554] 000000010001b475 00000000000006a2 0000000000000001 ffff8810a7df9
e50
[ 1737.837648] Call Trace:
[ 1737.844817] [<ffffffff810ab7b5>] ? __alloc_pages_nodemask+0x105/0x5f0
[ 1737.855810] [<ffffffff8158480b>] ? schedule_timeout+0x18b/0x200
[ 1737.866710] [<ffffffff8103312e>] ? apic_timer_interrupt+0xe/0x20
[ 1738.384865] [<ffffffff8152f9b0>] ? udp_ioctl+0x0/0x70
[ 1738.407597] [<ffffffff8129a8a5>] ? cpumask_any_but+0x25/0x40
[ 1738.888936] [<ffffffff81583b11>] ? wait_for_common+0xe1/0x1c0
[ 1738.888936] [<ffffffff81062f30>] ? default_wake_function+0x0/0x10
[ 1738.909985] [<ffffffff8107ccde>] ? synchronize_sched+0x4e/0x60
[ 1738.929008] [<ffffffff8107cc80>] ? wakeme_after_rcu+0x0/0x10
[ 1738.936794] [<ffffffff815595d7>] ? packet_do_bind+0x117/0x140
[ 1738.943435] [<ffffffff8155a3e4>] ? packet_bind+0x64/0x90
[ 1738.948413] [<ffffffff814d611e>] ? sys_bind+0x7e/0xd0
[ 1738.958205] [<ffffffff810de865>] ? fd_install+0x25/0x60
[ 1738.964466] [<ffffffff814d6364>] ? sock_map_fd+0x54/0x90
[ 1738.969223] [<ffffffff810eeae9>] ? sys_ioctl+0x49/0x80
[ 1738.979004] [<ffffffff81032682>] ? system_call_fastpath+0x16/0x1b
dfsgg[ 1797.555340] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1797.555340] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1797.555340] CPU 78:
[ 1797.555340] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1797.555340] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1797.555340] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1797.555340] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1797.555340] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1797.555340] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1797.555340] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1797.555340] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1797.555340] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1797.555340] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1797.555340] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1797.555340] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1797.555340] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1797.555340] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1797.555340] Call Trace:
[ 1797.555340] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1797.555340] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1797.555340] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1797.555340] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1797.555340] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1797.555340] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1797.555340] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1797.555340] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1797.555340] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1797.555340] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1860.487671] INFO: task dhclient:18816 blocked for more than 120 seconds.
[ 1860.499758] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1860.526448] dhclient D ffffffff8105b4c9 0 18816 1 0x00000000
[ 1860.543212] ffff8830ecfcc000 0000000000000086 0000000000000000 ffffffff810ab
7b5
[ 1860.572783] ffff8810a7507470 ffff8810a75070c0 ffff8810a7507000 ffff8810a7507
470
[ 1860.609237] 000000010001b475 00000000000006a2 0000000000000001 ffff8810a7df9
e50
[ 1860.644940] Call Trace:
[ 1860.649929] [<ffffffff810ab7b5>] ? __alloc_pages_nodemask+0x105/0x5f0
[ 1860.661169] [<ffffffff8158480b>] ? schedule_timeout+0x18b/0x200
[ 1860.668791] [<ffffffff8103312e>] ? apic_timer_interrupt+0xe/0x20
[ 1860.675496] [<ffffffff8152f9b0>] ? udp_ioctl+0x0/0x70
[ 1860.687375] [<ffffffff8129a8a5>] ? cpumask_any_but+0x25/0x40
[ 1860.702806] [<ffffffff81583b11>] ? wait_for_common+0xe1/0x1c0
[ 1860.709979] [<ffffffff81062f30>] ? default_wake_function+0x0/0x10
[ 1860.717698] [<ffffffff8107ccde>] ? synchronize_sched+0x4e/0x60
[ 1860.724719] [<ffffffff8107cc80>] ? wakeme_after_rcu+0x0/0x10
[ 1860.729439] [<ffffffff815595d7>] ? packet_do_bind+0x117/0x140
[ 1860.742608] [<ffffffff8155a3e4>] ? packet_bind+0x64/0x90
[ 1860.748459] [<ffffffff814d611e>] ? sys_bind+0x7e/0xd0
[ 1860.755926] [<ffffffff810de865>] ? fd_install+0x25/0x60
[ 1860.763614] [<ffffffff814d6364>] ? sock_map_fd+0x54/0x90
[ 1860.768300] [<ffffffff810eeae9>] ? sys_ioctl+0x49/0x80
[ 1860.776603] [<ffffffff81032682>] ? system_call_fastpath+0x16/0x1b
[ 1864.124505] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1864.124505] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1864.124505] CPU 78:
[ 1864.124505] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1864.124505] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1864.124505] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1864.124505] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1864.124505] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1864.124505] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1864.124505] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1864.124505] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1864.124505] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1864.124505] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1864.124505] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1864.124505] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1864.124505] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1864.124505] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1864.124505] Call Trace:
[ 1864.124505] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1864.124505] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1864.124505] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1864.124505] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1864.124505] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1864.124505] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1864.124505] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1864.124505] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1864.124505] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1864.124505] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1931.222027] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1931.222027] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1931.222027] CPU 78:
[ 1931.352843] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1931.352843] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1931.375035] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1931.375035] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1931.397468] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1931.403719] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1931.403719] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1931.403719] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1931.403719] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1931.403719] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1931.403719] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1931.403719] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1931.403719] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1931.403719] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1931.403719] Call Trace:
[ 1931.403719] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1931.403719] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1931.403719] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1931.403719] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1931.403719] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1931.403719] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1931.403719] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1931.403719] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1931.403719] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1931.403719] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1979.921730] BUG: soft lockup - CPU#246 stuck for 61s! [swapper:0]
[ 1979.997450] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1980.088250] CPU 246:
[ 1980.088250] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1980.306872] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1980.344942] RIP: 0010:[<ffffffff81585d10>] [<ffffffff81585d10>] _spin_tryloc
k+0x0/0x30
[ 1980.428450] RSP: 0018:ffff893f88c03e18 EFLAGS: 00010206
[ 1980.469296] RAX: 0000000000000400 RBX: 00000000000115c0 RCX: 0000000000000400
[ 1980.469296] RDX: 0000000000000034 RSI: 0000000000000200 RDI: ffffffff81b03134
[ 1980.469296] RBP: ffffffff81033133 R08: 0000000000000000 R09: 0000000000000000
[ 1980.469296] R10: 0000000000000000 R11: ffffffff8104b8b0 R12: ffff893f88c03d90
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
[ 198
k+0x8
[ 198
[ 198
[ 198
[ 198
[ 1980.848988] R13: ffff893f88c0d740 R14: 0000000000000002 R15: ffffffff81046ea6
[ 1980.914997] FS: 0000000000000000(0000) GS:ffff893f88c00000(0000) knlGS:00000
00000000000
[ 1980.974445] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1981.014591] INFO: task dhclient:18816 blocked for more than 120 seconds.
[ 1981.014619] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1981.014621] dhclient D ffffffff8105b4c9 0 18816 1 0x00000000
[ 1981.014623] ffff8830ecfcc000 0000000000000086 0000000000000000 ffffffff810ab
7b5
[ 1981.014625] ffff8810a7507470 ffff8810a75070c0 ffff8810a7507000 ffff8810a7507
470
[ 1981.014627] 000000010001b475 00000000000006a2 0000000000000001 ffff8810a7df9
e50
[ 1981.014628] Call Trace:
[ 1981.014655] [<ffffffff810ab7b5>] ? __alloc_pages_nodemask+0x105/0x5f0
[ 1981.014658] [<ffffffff8158480b>] ? schedule_timeout+0x18b/0x200
[ 1981.014662] [<ffffffff8103312e>] ? apic_timer_interrupt+0xe/0x20
[ 1981.014664] [<ffffffff8152f9b0>] ? udp_ioctl+0x0/0x70
[ 1981.014666] [<ffffffff8129a8a5>] ? cpumask_any_but+0x25/0x40
[ 1981.014668] [<ffffffff81583b11>] ? wait_for_common+0xe1/0x1c0
[ 1981.014670] [<ffffffff81062f30>] ? default_wake_function+0x0/0x10
[ 1981.014672] [<ffffffff8107ccde>] ? synchronize_sched+0x4e/0x60
[ 1981.014674] [<ffffffff8107cc80>] ? wakeme_after_rcu+0x0/0x10
[ 1981.014678] [<ffffffff815595d7>] ? packet_do_bind+0x117/0x140
[ 1981.014679] [<ffffffff8155a3e4>] ? packet_bind+0x64/0x90
[ 1981.014682] [<ffffffff814d611e>] ? sys_bind+0x7e/0xd0
[ 1981.014684] [<ffffffff810de865>] ? fd_install+0x25/0x60
[ 1981.014686] [<ffffffff814d6364>] ? sock_map_fd+0x54/0x90
[ 1981.014688] [<ffffffff810eeae9>] ? sys_ioctl+0x49/0x80
[ 1981.014690] [<ffffffff81032682>] ? system_call_fastpath+0x16/0x1b
[ 1982.280441] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1982.352604] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1982.401269] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1982.454170] Call Trace:
[ 1982.492010] <IRQ> [<ffffffff81063635>] ? rebalance_domains+0x2c5/0x470
[ 1982.573380] [<ffffffff8104b8b0>] ? x2apic_send_IPI_mask+0x0/0x90
[ 1982.642218] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
[ 1982.724503] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
[ 1982.776659] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1982.795125] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1982.848569] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1982.848569] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1982.848569] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1982.848569] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 1982.848569] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1982.848569] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1982.848569] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1982.848569] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1982.848569] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 1997.995723] BUG: soft lockup - CPU#78 stuck for 61s! [swapper:0]
[ 1998.073588] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1998.073588] CPU 78:
[ 1998.073588] Modules linked in: nfs lockd nfs_acl sunrpc
[ 1998.073588] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 1998.156494] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 1998.156494] RSP: 0018:ffff886169603f00 EFLAGS: 00000206
[ 1998.156494] RAX: ffff8adcacfddfd8 RBX: ffff886169603f58 RCX: 000000000000004e
[ 1998.156494] RDX: 000000000000dea0 RSI: 0000000000008f2a RDI: 0000000000000838
[ 1998.156494] RBP: ffffffff81033133 R08: ffff88616960b880 R09: 000000000000000a
[ 1998.156494] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff886169603e80
[ 1998.156494] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 1998.156494] FS: 0000000000000000(0000) GS:ffff886169600000(0000) knlGS:00000
00000000000
[ 1998.156494] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050039
[ 1998.156494] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 1998.156494] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1998.156494] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 1998.156494] Call Trace:
[ 1998.156494] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 1998.156494] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 1998.156494] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 1998.156494] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 1998.156494] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 1998.156494] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 1998.156494] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 1998.156494] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 1998.156494] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 1998.156494] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 2109.274409] BUG: soft lockup - CPU#240 stuck for 61s! [swapper:0]
[ 2109.274409] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2109.274409] CPU 240:
[ 2109.274409] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2109.274409] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 2109.274409] RIP: 0010:[<ffffffff8105ac32>] [<ffffffff8105ac32>] weighted_cpu
load+0x12/0x20
[ 2109.274409] RSP: 0018:ffff89468e803c88 EFLAGS: 00010286
[ 2109.274409] RAX: 00000000000115c0 RBX: 0000000000000002 RCX: 0000000000000000
[ 2109.274409] RDX: ffff89274e600000 RSI: 0000000000000002 RDI: 00000000000000d8
[ 2109.274409] RBP: ffffffff81033133 R08: 00000000000000c0 R09: ffff894f0ca4e428
[ 2109.274409] R10: 0000000000000001 R11: 0000000000000000 R12: ffff89468e803c00
[ 2109.274409] R13: 00000000000115c0 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 2109.274409] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
00000000000
[ 2109.274409] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2109.274409] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 2109.274409] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2109.274409] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 2109.274409] Call Trace:
[ 2109.274409] <IRQ> [<ffffffff8105ac6b>] ? source_load+0x2b/0x70
[ 2109.274409] [<ffffffff810602d5>] ? find_busiest_group+0x1b5/0xa30
[ 2109.274409] [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
[ 2109.274409] [<ffffffff810a21ad>] ? rcu_process_gp_end+0x4d/0xb0
[ 2109.274409] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
[ 2109.274409] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
[ 2109.274409] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 2109.274409] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 2109.274409] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 2109.274409] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 2109.274409] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 2109.274409] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 2109.274409] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 2109.274409] <EOI> [<ffffffff81061dcc>] ? finish_task_switch+0x2c/0xb0
[ 2109.274409] [<ffffffff81583fd7>] ? thread_return+0x3e/0x5a7
[ 2109.274409] [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
[ 2109.274409] [<ffffffff8103154f>] ? cpu_idle+0x6f/0x90
Internet Systems Consortium DHCP Client V3.0.5-RedHat
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
/etc/sysconfig/network-scripts/network-functions: line 10: /etc/init.d/functions
: No such file or directory
Listening on LPF/eth0/3c:4a:92:6c:dd:c2
Sending on LPF/eth0/3c:4a:92:6c:dd:c2
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
No DHCPOFFERS received.
Unable to obtain a lease on first try. Exiting.
ERROR! dhclient failed!
[ 2186.229066] BUG: soft lockup - CPU#84 stuck for 61s! [swapper:0]
[ 2186.229066] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2186.229066] CPU 84:
[ 2186.229066] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2186.229066] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 2186.229066] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 2186.229066] RSP: 0018:ffff8878bfa03f00 EFLAGS: 00000206
[ 2186.229066] RAX: ffff8898dcffdfd8 RBX: ffff8878bfa03f58 RCX: 0000000000000054
[ 2186.229066] RDX: 000000000000dea0 RSI: 000000000000d88b RDI: 0000000000000838
[ 2186.229066] RBP: ffffffff81033133 R08: ffff8878bfa0b880 R09: 0000000000000010
[ 2186.229066] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff8878bfa03e80
[ 2186.229066] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 2186.229066] FS: 0000000000000000(0000) GS:ffff8878bfa00000(0000) knlGS:00000
00000000000
[ 2186.229066] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2186.229066] CR2: 000000308cc9a6e0 CR3: 0000000001001000 CR4: 00000000000026e0
[ 2186.229066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2186.229066] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 2186.229066] Call Trace:
[ 2186.229066] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 2186.229066] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 2186.229066] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 2186.229066] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 2186.229066] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 2186.229066] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 2186.229066] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 2186.229066] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 2186.229066] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 2186.229066] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 2186.229066] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 2253.452631] BUG: soft lockup - CPU#84 stuck for 61s! [swapper:0]
[ 2253.452631] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2253.452631] CPU 84:
[ 2253.452631] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2253.452631] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 2253.452631] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 2253.452631] RSP: 0018:ffff8878bfa03f00 EFLAGS: 00000206
[ 2253.452631] RAX: ffff8898dcffdfd8 RBX: ffff8878bfa03f58 RCX: 0000000000000054
[ 2253.452631] RDX: 000000000000dea0 RSI: 000000000000d88b RDI: 0000000000000838
[ 2253.452631] RBP: ffffffff81033133 R08: ffff8878bfa0b880 R09: 0000000000000010
[ 2253.452631] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff8878bfa03e80
[ 2253.452631] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 2253.452631] FS: 0000000000000000(0000) GS:ffff8878bfa00000(0000) knlGS:00000
00000000000
[ 210
[ 210
[ 210
[ 210
[ 210
[ 210
[ 210
[ 220
[ 220
[ 220
[ 220
[ 220
+0x60
[ 220
[ 220
[ 220
[ 220
[ 220
[ 220
00000
0
[ 2253.452631] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2253.452631] CR2: 000000308cc9a6e0 CR3: 0000000001001000 CR4: 00000000000026e0
[ 2253.452631] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2253.452631] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 2253.452631] Call Trace:
[ 2253.452631] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 2253.452631] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 2253.452631] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 2253.452631] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 2253.452631] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 2253.452631] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 2253.452631] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 2253.452631] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 2253.452631] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 2253.452631] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 2253.452631] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 2319.403798] BUG: soft lockup - CPU#84 stuck for 61s! [swapper:0]
[ 2319.403798] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2319.403798] CPU 84:
[ 2319.403798] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2319.403798] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 2319.403798] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 2319.403798] RSP: 0018:ffff8878bfa03f00 EFLAGS: 00000206
[ 2319.403798] RAX: ffff8898dcffdfd8 RBX: ffff8878bfa03f58 RCX: 0000000000000054
[ 2319.403798] RDX: 000000000000dea0 RSI: 000000000000d88b RDI: 0000000000000838
[ 2319.403798] RBP: ffffffff81033133 R08: ffff8878bfa0b880 R09: 0000000000000010
[ 2319.403798] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff8878bfa03e80
[ 2319.403798] R13: 0000000000000282 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 2319.403798] FS: 0000000000000000(0000) GS:ffff8878bfa00000(0000) knlGS:00000
00000000000
[ 2319.403798] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2319.403798] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 2319.403798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2319.403798] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 2319.403798] Call Trace:
[ 2319.403798] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 2319.403798] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 2319.403798] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 2319.403798] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 2319.403798] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 2319.403798] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 2319.403798] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 2319.403798] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 2319.403798] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 2319.403798] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 2319.403798] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 2410.734721] BUG: soft lockup - CPU#84 stuck for 62s! [swapper:0]
[ 2410.734721] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2410.734721] CPU 84:
[ 2410.734721] Modules linked in: nfs lockd nfs_acl sunrpc
[ 2410.734721] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
[ 2410.734721] RIP: 0010:[<ffffffff8106fb73>] [<ffffffff8106fb73>] __do_softirq
+0x63/0x140
[ 2410.734721] RSP: 0018:ffff8878bfa03f00 EFLAGS: 00000206
[ 2410.734721] RAX: ffff8898dcffdfd8 RBX: ffff8878bfa03f58 RCX: 0000000000000054
[ 2410.734721] RDX: 000000000000dea0 RSI: 0000000000002258 RDI: 0000000000000838
[ 2410.734721] RBP: ffffffff81033133 R08: ffff8878bfa0b880 R09: 0000000000000010
[ 2410.875847] R10: 0000000000000000 R11: ffffffff81046900 R12: ffff8878bfa03e80
[ 2410.875847] R13: 0000000000000082 R14: ffffffff8104b6dc R15: ffffffff81046ea6
[ 2410.875847] FS: 0000000000000000(0000) GS:ffff8878bfa00000(0000) knlGS:00000
00000000000
[ 2410.875847] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2410.875847] CR2: ffff8800000b8ef8 CR3: 0000000001001000 CR4: 00000000000026e0
[ 2410.875847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2410.875847] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 2410.875847] Call Trace:
[ 2410.875847] <IRQ> [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
[ 2410.985474] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
[ 2410.985474] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
[ 2410.985474] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
[ 2410.985474] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
[ 2410.985474] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
[ 2410.985474] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
[ 2410.985474] <EOI> [<ffffffff81046900>] ? lapic_next_event+0x0/0x20
[ 2410.985474] [<ffffffff8108a9dd>] ? tick_nohz_restart_sched_tick+0x14d/0x160
[ 2411.046196] [<ffffffff8108a98b>] ? tick_nohz_restart_sched_tick+0xfb/0x160
[ 2411.046196] [<ffffffff8103154a>] ? cpu_idle+0x6a/0x90
[ 2457.329801] Kernel panic - not syncing: Attempted to kill init!
[ 2457.331048] Pid: 1, comm: init Not tainted 2.6.32.19-3.vSMP #2
[ 2457.331329] Call Trace:
[ 2457.331530] [<ffffffff8106a7d6>] ? panic+0x86/0x160
[ 2457.331776] [<ffffffff810738df>] ? exit_ptrace+0x2f/0x120
[ 2457.332026] [<ffffffff8106dd2d>] ? do_exit+0x5ed/0x720
[ 2457.332262] [<ffffffff8106de99>] ? do_group_exit+0x39/0xa0
[ 2457.332515] [<ffffffff8106df12>] ? sys_exit_group+0x12/0x20
[ 2457.332770] [<ffffffff81032682>] ? system_call_fastpath+0x16/0x1b
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-09 7:27 [BUG] soft lockup while booting machine with more than 700 cores raz ben yehuda
@ 2011-02-10 4:47 ` Mike Galbraith
2011-02-10 12:39 ` Ingo Molnar
1 sibling, 0 replies; 8+ messages in thread
From: Mike Galbraith @ 2011-02-10 4:47 UTC (permalink / raw)
To: raz ben yehuda; +Cc: linux-kernel, mingo
On Wed, 2011-02-09 at 09:27 +0200, raz ben yehuda wrote:
> Mingo Hello
>
> Bellow is a boot of a 2.6.32.19 kernel over a machine with more than 700 cores.
A couple comments.
1. A lot of scheduler fixes were backported since then, so trying the
latest .32 stable kernel is worth investigating.
2. Nasty thing with huge boxen is that they can get into big trouble
with the rt throttle during boot. You might try defaulting that thing
to off until booted. Dunno if this box is big enough to hit that, 2048
cores definitely is.
-Mike
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-10 12:39 ` Ingo Molnar
@ 2011-02-10 6:09 ` raz ben yehuda
2011-02-10 20:56 ` Jack Steiner
1 sibling, 0 replies; 8+ messages in thread
From: raz ben yehuda @ 2011-02-10 6:09 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, mingo, Peter Zijlstra, Mike Galbraith,
Jack Steiner, Cliff Wickman, Mike Travis, Thomas Gleixner,
H. Peter Anvin
On Thu, 2011-02-10 at 13:39 +0100, Ingo Molnar wrote:
> * raz ben yehuda <raz@scalemp.com> wrote:
>
> > Mingo Hello
> >
> > Bellow is a boot of a 2.6.32.19 kernel over a machine with more than 700 cores. I
> > am failing to boot it due to a soft lockup in rebalance_domains area. I did not
> > find anything related in mainline git and kernel's bugzilla.
> >
> > thank you
> > Raz
> >
> >
> > [ 929.614315] TCP cubic registered
> > [ 929.614577] NET: Registered protocol family 17
> > [ 930.785915] Bridge firewalling registered
> > [ 930.928396] Freeing unused kernel memory: 1380k freed
> > ===============================================================================
> > Running /disklessrc
> > Mounting /proc
> > Creating /dev
> > Creating initial device nodes
> > [ 931.327841] usb 5-1: configuration #1 chosen from 1 choice
> > [ 931.657469] input: HP Virtual Keyboard as /class/input/input0
> > [ 931.671560] generic-usb 0003:03F0:1027.0001: input: USB HID v1.01 Keyboard [H
> > P Virtual Keyboard] on usb-0000:01:04.0-1/input0
> > [ 931.911480] input: HP Virtual Keyboard as /class/input/input1
> > [ 931.926135] generic-usb 0003:03F0:1027.0002: input: USB HID v1.01 Mouse [HP V
> > irtual Keyboard] on usb-0000:01:04.0-1/input1
> > [ 932.247432] scsi 0:0:0:0: Direct-Access Generic USB Flash Disk 0.00 PQ
> > : 0 ANSI: 2
> > [ 932.301626] sd 0:0:0:0: Attached scsi generic sg0 type 0
> > [ 932.416279] sd 0:0:0:0: [sda] 7892992 512-byte logical blocks: (4.04 GB/3.76
> > GiB)
> > [ 932.559424] sd 0:0:0:0: [sda] Write Protect is off
> > [ 932.563238] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 932.802006] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 932.805070] sda: sda1
> > [ 934.315071] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 934.318055] sd 0:0:0:0: [sda] Attached SCSI removable disk
> > Loading nfs module... [ 1011.681028] BUG: soft lockup - CPU#240 stuck for 62s! [
> > swapper:0]
> > [ 1011.744482] Modules linked in: sunrpc(+)
> > [ 1011.789117] CPU 240:
> > [ 1011.828757] Modules linked in: sunrpc(+)
> > [ 1011.874003] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
> > [ 1011.935843] RIP: 0010:[<ffffffff8105ac32>] [<ffffffff8105ac32>] weighted_cpu
> > load+0x12/0x20
> > [ 1012.051597] RSP: 0018:ffff89468e803c88 EFLAGS: 00010286
> > [ 1012.115020] RAX: 00000000000115c0 RBX: 0000000000000002 RCX: 000000000000001d
> > [ 1012.162897] RDX: ffff8acd2e840000 RSI: 0000000000000002 RDI: 000000000000021d
> > [ 1012.243858] RBP: ffffffff81033133 R08: 0000000000000200 R09: ffff894f0ca3d450
> > [ 1012.309760] R10: 0000000000000000 R11: ffff89468e803dc0 R12: ffff89468e803c00
> > [ 1012.358023] R13: 00000000000115c0 R14: ffffffff8104b6dc R15: ffffffff81046ea6
> > [ 1012.417072] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
> > 00000000000
> > [ 1012.494488] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> > [ 1012.559412] CR2: 00000000008d3988 CR3: 0000000001001000 CR4: 00000000000026e0
> > [ 1012.619828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [ 1012.675491] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
> > [ 1012.739386] Call Trace:
> > [ 1012.790082] <IRQ> [<ffffffff81039705>] ? sched_clock+0x5/0x10
> > [ 1012.868687] [<ffffffff8105ac6b>] ? source_load+0x2b/0x70
> > [ 1012.923473] [<ffffffff810602d5>] ? find_busiest_group+0x1b5/0xa30
> > [ 1012.973482] [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
> > [ 1013.031838] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
> > [ 1013.081837] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
> > [ 1013.134496] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
> > [ 1013.182834] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
> > [ 1013.246263] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
> > [ 1013.314801] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
> > [ 1013.355605] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
> > [ 1013.391166] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
> > [ 1013.391166] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
> > [ 1013.478307] <EOI> [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
> > [ 1013.515916] [<ffffffff8103a481>] ? default_idle+0x21/0x40
> > [ 1013.572168] [<ffffffff81031537>] ? cpu_idle+0x57/0x90
> > [ 1112.445978] BUG: soft lockup - CPU#240 stuck for 62s! [swapper:0]
> > [ 1112.445978] Modules linked in: sunrpc(+)
>
> Interesting.
>
> Could you boot up with just enough cores for it to not lock up, and run perf top and
> see where the overhead is?
First, thank you for your reply. I will get back to you on this one
later as I have technical problems at the moment repeating the test.
Thanks
raz
>
> Ingo
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-09 7:27 [BUG] soft lockup while booting machine with more than 700 cores raz ben yehuda
2011-02-10 4:47 ` Mike Galbraith
@ 2011-02-10 12:39 ` Ingo Molnar
2011-02-10 6:09 ` raz ben yehuda
2011-02-10 20:56 ` Jack Steiner
1 sibling, 2 replies; 8+ messages in thread
From: Ingo Molnar @ 2011-02-10 12:39 UTC (permalink / raw)
To: raz ben yehuda
Cc: linux-kernel, mingo, Peter Zijlstra, Mike Galbraith,
Jack Steiner, Cliff Wickman, Mike Travis, Thomas Gleixner,
H. Peter Anvin
* raz ben yehuda <raz@scalemp.com> wrote:
> Mingo Hello
>
> Bellow is a boot of a 2.6.32.19 kernel over a machine with more than 700 cores. I
> am failing to boot it due to a soft lockup in rebalance_domains area. I did not
> find anything related in mainline git and kernel's bugzilla.
>
> thank you
> Raz
>
>
> [ 929.614315] TCP cubic registered
> [ 929.614577] NET: Registered protocol family 17
> [ 930.785915] Bridge firewalling registered
> [ 930.928396] Freeing unused kernel memory: 1380k freed
> ===============================================================================
> Running /disklessrc
> Mounting /proc
> Creating /dev
> Creating initial device nodes
> [ 931.327841] usb 5-1: configuration #1 chosen from 1 choice
> [ 931.657469] input: HP Virtual Keyboard as /class/input/input0
> [ 931.671560] generic-usb 0003:03F0:1027.0001: input: USB HID v1.01 Keyboard [H
> P Virtual Keyboard] on usb-0000:01:04.0-1/input0
> [ 931.911480] input: HP Virtual Keyboard as /class/input/input1
> [ 931.926135] generic-usb 0003:03F0:1027.0002: input: USB HID v1.01 Mouse [HP V
> irtual Keyboard] on usb-0000:01:04.0-1/input1
> [ 932.247432] scsi 0:0:0:0: Direct-Access Generic USB Flash Disk 0.00 PQ
> : 0 ANSI: 2
> [ 932.301626] sd 0:0:0:0: Attached scsi generic sg0 type 0
> [ 932.416279] sd 0:0:0:0: [sda] 7892992 512-byte logical blocks: (4.04 GB/3.76
> GiB)
> [ 932.559424] sd 0:0:0:0: [sda] Write Protect is off
> [ 932.563238] sd 0:0:0:0: [sda] Assuming drive cache: write through
> [ 932.802006] sd 0:0:0:0: [sda] Assuming drive cache: write through
> [ 932.805070] sda: sda1
> [ 934.315071] sd 0:0:0:0: [sda] Assuming drive cache: write through
> [ 934.318055] sd 0:0:0:0: [sda] Attached SCSI removable disk
> Loading nfs module... [ 1011.681028] BUG: soft lockup - CPU#240 stuck for 62s! [
> swapper:0]
> [ 1011.744482] Modules linked in: sunrpc(+)
> [ 1011.789117] CPU 240:
> [ 1011.828757] Modules linked in: sunrpc(+)
> [ 1011.874003] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
> [ 1011.935843] RIP: 0010:[<ffffffff8105ac32>] [<ffffffff8105ac32>] weighted_cpu
> load+0x12/0x20
> [ 1012.051597] RSP: 0018:ffff89468e803c88 EFLAGS: 00010286
> [ 1012.115020] RAX: 00000000000115c0 RBX: 0000000000000002 RCX: 000000000000001d
> [ 1012.162897] RDX: ffff8acd2e840000 RSI: 0000000000000002 RDI: 000000000000021d
> [ 1012.243858] RBP: ffffffff81033133 R08: 0000000000000200 R09: ffff894f0ca3d450
> [ 1012.309760] R10: 0000000000000000 R11: ffff89468e803dc0 R12: ffff89468e803c00
> [ 1012.358023] R13: 00000000000115c0 R14: ffffffff8104b6dc R15: ffffffff81046ea6
> [ 1012.417072] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
> 00000000000
> [ 1012.494488] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> [ 1012.559412] CR2: 00000000008d3988 CR3: 0000000001001000 CR4: 00000000000026e0
> [ 1012.619828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 1012.675491] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
> [ 1012.739386] Call Trace:
> [ 1012.790082] <IRQ> [<ffffffff81039705>] ? sched_clock+0x5/0x10
> [ 1012.868687] [<ffffffff8105ac6b>] ? source_load+0x2b/0x70
> [ 1012.923473] [<ffffffff810602d5>] ? find_busiest_group+0x1b5/0xa30
> [ 1012.973482] [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
> [ 1013.031838] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
> [ 1013.081837] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
> [ 1013.134496] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
> [ 1013.182834] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
> [ 1013.246263] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
> [ 1013.314801] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
> [ 1013.355605] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
> [ 1013.391166] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
> [ 1013.391166] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
> [ 1013.478307] <EOI> [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
> [ 1013.515916] [<ffffffff8103a481>] ? default_idle+0x21/0x40
> [ 1013.572168] [<ffffffff81031537>] ? cpu_idle+0x57/0x90
> [ 1112.445978] BUG: soft lockup - CPU#240 stuck for 62s! [swapper:0]
> [ 1112.445978] Modules linked in: sunrpc(+)
Interesting.
Could you boot up with just enough cores for it to not lock up, and run perf top and
see where the overhead is?
Thanks,
Ingo
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-10 12:39 ` Ingo Molnar
2011-02-10 6:09 ` raz ben yehuda
@ 2011-02-10 20:56 ` Jack Steiner
2011-02-10 21:03 ` David Miller
1 sibling, 1 reply; 8+ messages in thread
From: Jack Steiner @ 2011-02-10 20:56 UTC (permalink / raw)
To: Ingo Molnar
Cc: raz ben yehuda, linux-kernel, mingo, Peter Zijlstra,
Mike Galbraith, Cliff Wickman, Mike Travis, Thomas Gleixner,
H. Peter Anvin
On Thu, Feb 10, 2011 at 01:39:37PM +0100, Ingo Molnar wrote:
>
> * raz ben yehuda <raz@scalemp.com> wrote:
>
> > Mingo Hello
> >
> > Bellow is a boot of a 2.6.32.19 kernel over a machine with more than 700 cores. I
> > am failing to boot it due to a soft lockup in rebalance_domains area. I did not
> > find anything related in mainline git and kernel's bugzilla.
Not sure what boot options you are using. We saw similar problems on large SGI UV
systems. See if booting with "nohz=off" helps (you might already have this).
We also noticed that the rebalance_domains() code references many per-cpu
run queue structures. All of the structures have identical offsets relative
to the size of a cache leaf. The result is that all index into the same lines in the
L3 caches. That causes many evictions. We tried an experimental to
stride the run queues at 128 byte offsets. That helped in some cases but the
results were mixed. We are still experimenting with the patch.
--- jack
> >
> > thank you
> > Raz
> >
> >
> > [ 929.614315] TCP cubic registered
> > [ 929.614577] NET: Registered protocol family 17
> > [ 930.785915] Bridge firewalling registered
> > [ 930.928396] Freeing unused kernel memory: 1380k freed
> > ===============================================================================
> > Running /disklessrc
> > Mounting /proc
> > Creating /dev
> > Creating initial device nodes
> > [ 931.327841] usb 5-1: configuration #1 chosen from 1 choice
> > [ 931.657469] input: HP Virtual Keyboard as /class/input/input0
> > [ 931.671560] generic-usb 0003:03F0:1027.0001: input: USB HID v1.01 Keyboard [H
> > P Virtual Keyboard] on usb-0000:01:04.0-1/input0
> > [ 931.911480] input: HP Virtual Keyboard as /class/input/input1
> > [ 931.926135] generic-usb 0003:03F0:1027.0002: input: USB HID v1.01 Mouse [HP V
> > irtual Keyboard] on usb-0000:01:04.0-1/input1
> > [ 932.247432] scsi 0:0:0:0: Direct-Access Generic USB Flash Disk 0.00 PQ
> > : 0 ANSI: 2
> > [ 932.301626] sd 0:0:0:0: Attached scsi generic sg0 type 0
> > [ 932.416279] sd 0:0:0:0: [sda] 7892992 512-byte logical blocks: (4.04 GB/3.76
> > GiB)
> > [ 932.559424] sd 0:0:0:0: [sda] Write Protect is off
> > [ 932.563238] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 932.802006] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 932.805070] sda: sda1
> > [ 934.315071] sd 0:0:0:0: [sda] Assuming drive cache: write through
> > [ 934.318055] sd 0:0:0:0: [sda] Attached SCSI removable disk
> > Loading nfs module... [ 1011.681028] BUG: soft lockup - CPU#240 stuck for 62s! [
> > swapper:0]
> > [ 1011.744482] Modules linked in: sunrpc(+)
> > [ 1011.789117] CPU 240:
> > [ 1011.828757] Modules linked in: sunrpc(+)
> > [ 1011.874003] Pid: 0, comm: swapper Not tainted 2.6.32.19-3.vSMP #2 vSMP 3.5
> > [ 1011.935843] RIP: 0010:[<ffffffff8105ac32>] [<ffffffff8105ac32>] weighted_cpu
> > load+0x12/0x20
> > [ 1012.051597] RSP: 0018:ffff89468e803c88 EFLAGS: 00010286
> > [ 1012.115020] RAX: 00000000000115c0 RBX: 0000000000000002 RCX: 000000000000001d
> > [ 1012.162897] RDX: ffff8acd2e840000 RSI: 0000000000000002 RDI: 000000000000021d
> > [ 1012.243858] RBP: ffffffff81033133 R08: 0000000000000200 R09: ffff894f0ca3d450
> > [ 1012.309760] R10: 0000000000000000 R11: ffff89468e803dc0 R12: ffff89468e803c00
> > [ 1012.358023] R13: 00000000000115c0 R14: ffffffff8104b6dc R15: ffffffff81046ea6
> > [ 1012.417072] FS: 0000000000000000(0000) GS:ffff89468e800000(0000) knlGS:00000
> > 00000000000
> > [ 1012.494488] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> > [ 1012.559412] CR2: 00000000008d3988 CR3: 0000000001001000 CR4: 00000000000026e0
> > [ 1012.619828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [ 1012.675491] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
> > [ 1012.739386] Call Trace:
> > [ 1012.790082] <IRQ> [<ffffffff81039705>] ? sched_clock+0x5/0x10
> > [ 1012.868687] [<ffffffff8105ac6b>] ? source_load+0x2b/0x70
> > [ 1012.923473] [<ffffffff810602d5>] ? find_busiest_group+0x1b5/0xa30
> > [ 1012.973482] [<ffffffff81063487>] ? rebalance_domains+0x117/0x470
> > [ 1013.031838] [<ffffffff81065a4e>] ? run_rebalance_domains+0x3e/0xe0
> > [ 1013.081837] [<ffffffff8106fbbe>] ? __do_softirq+0xae/0x140
> > [ 1013.134496] [<ffffffff81085da0>] ? ktime_get+0x50/0xd0
> > [ 1013.182834] [<ffffffff8103374c>] ? call_softirq+0x1c/0x30
> > [ 1013.246263] [<ffffffff81035745>] ? do_softirq+0x65/0xa0
> > [ 1013.314801] [<ffffffff8106fb0c>] ? irq_exit+0x7c/0x80
> > [ 1013.355605] [<ffffffff81046eab>] ? smp_apic_timer_interrupt+0x6b/0xa0
> > [ 1013.391166] [<ffffffff8104b6dc>] ? native_apic_msr_write+0x2c/0x40
> > [ 1013.391166] [<ffffffff81033133>] ? apic_timer_interrupt+0x13/0x20
> > [ 1013.478307] <EOI> [<ffffffff8104dc92>] ? native_safe_halt+0x2/0x10
> > [ 1013.515916] [<ffffffff8103a481>] ? default_idle+0x21/0x40
> > [ 1013.572168] [<ffffffff81031537>] ? cpu_idle+0x57/0x90
> > [ 1112.445978] BUG: soft lockup - CPU#240 stuck for 62s! [swapper:0]
> > [ 1112.445978] Modules linked in: sunrpc(+)
>
> Interesting.
>
> Could you boot up with just enough cores for it to not lock up, and run perf top and
> see where the overhead is?
>
> Thanks,
>
> Ingo
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-10 20:56 ` Jack Steiner
@ 2011-02-10 21:03 ` David Miller
2011-02-10 21:12 ` Jack Steiner
0 siblings, 1 reply; 8+ messages in thread
From: David Miller @ 2011-02-10 21:03 UTC (permalink / raw)
To: steiner
Cc: mingo, raz, linux-kernel, mingo, a.p.zijlstra, efault, cpw,
travis, tglx, hpa
From: Jack Steiner <steiner@sgi.com>
Date: Thu, 10 Feb 2011 14:56:48 -0600
> We also noticed that the rebalance_domains() code references many per-cpu
> run queue structures. All of the structures have identical offsets relative
> to the size of a cache leaf. The result is that all index into the same lines in the
> L3 caches. That causes many evictions. We tried an experimental to
> stride the run queues at 128 byte offsets. That helped in some cases but the
> results were mixed. We are still experimenting with the patch.
I think chasing after cache alignment issues misses the point entirely.
The core issue is that rebalance_domains() is insanely expensive, by
design. It's complexity is N factorial for the idle non-HZ cpu that is
selected to balance every single domain.
A statistic datastructure that is approximately 128 bytes in size is
repopulated N! times each time this global rebalance thing runs.
I've been seeing rebalance_domains() in my perf top output on 128 cpu
machines for several years now. Even on an otherwise idle machine,
the system churns in thus code path endlessly.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-10 21:03 ` David Miller
@ 2011-02-10 21:12 ` Jack Steiner
2011-02-16 15:04 ` Dimitri Sivanich
0 siblings, 1 reply; 8+ messages in thread
From: Jack Steiner @ 2011-02-10 21:12 UTC (permalink / raw)
To: David Miller
Cc: mingo, raz, linux-kernel, mingo, a.p.zijlstra, efault, cpw,
travis, tglx, hpa
On Thu, Feb 10, 2011 at 01:03:25PM -0800, David Miller wrote:
> From: Jack Steiner <steiner@sgi.com>
> Date: Thu, 10 Feb 2011 14:56:48 -0600
>
> > We also noticed that the rebalance_domains() code references many per-cpu
> > run queue structures. All of the structures have identical offsets relative
> > to the size of a cache leaf. The result is that all index into the same lines in the
> > L3 caches. That causes many evictions. We tried an experimental to
> > stride the run queues at 128 byte offsets. That helped in some cases but the
> > results were mixed. We are still experimenting with the patch.
>
> I think chasing after cache alignment issues misses the point entirely.
>
> The core issue is that rebalance_domains() is insanely expensive, by
> design. It's complexity is N factorial for the idle non-HZ cpu that is
> selected to balance every single domain.
>
> A statistic datastructure that is approximately 128 bytes in size is
> repopulated N! times each time this global rebalance thing runs.
>
> I've been seeing rebalance_domains() in my perf top output on 128 cpu
> machines for several years now. Even on an otherwise idle machine,
> the system churns in thus code path endlessly.
Completely agree! Idle rebalancing is also a big problem. We've seen
significant improvements on large systems in network thruput by
disabling IDLE load balancing for the higher (2 & 3) scheduling domains.
This is not a real fix but points to a problem.
--- jack
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [BUG] soft lockup while booting machine with more than 700 cores
2011-02-10 21:12 ` Jack Steiner
@ 2011-02-16 15:04 ` Dimitri Sivanich
0 siblings, 0 replies; 8+ messages in thread
From: Dimitri Sivanich @ 2011-02-16 15:04 UTC (permalink / raw)
To: Jack Steiner
Cc: David Miller, mingo, raz, linux-kernel, mingo, a.p.zijlstra,
efault, cpw, travis, tglx, hpa, sivanich
On Thu, Feb 10, 2011 at 03:12:23PM -0600, Jack Steiner wrote:
> On Thu, Feb 10, 2011 at 01:03:25PM -0800, David Miller wrote:
> > From: Jack Steiner <steiner@sgi.com>
> > Date: Thu, 10 Feb 2011 14:56:48 -0600
> >
> > > We also noticed that the rebalance_domains() code references many per-cpu
> > > run queue structures. All of the structures have identical offsets relative
> > > to the size of a cache leaf. The result is that all index into the same lines in the
> > > L3 caches. That causes many evictions. We tried an experimental to
> > > stride the run queues at 128 byte offsets. That helped in some cases but the
> > > results were mixed. We are still experimenting with the patch.
> >
> > I think chasing after cache alignment issues misses the point entirely.
> >
> > The core issue is that rebalance_domains() is insanely expensive, by
> > design. It's complexity is N factorial for the idle non-HZ cpu that is
> > selected to balance every single domain.
> >
> > A statistic datastructure that is approximately 128 bytes in size is
> > repopulated N! times each time this global rebalance thing runs.
> >
> > I've been seeing rebalance_domains() in my perf top output on 128 cpu
> > machines for several years now. Even on an otherwise idle machine,
> > the system churns in thus code path endlessly.
>
> Completely agree! Idle rebalancing is also a big problem. We've seen
> significant improvements on large systems in network thruput by
> disabling IDLE load balancing for the higher (2 & 3) scheduling domains.
>
> This is not a real fix but points to a problem.
>
Here are some TCP STREAMS test numbers from a large, otherwise idle UV system.
With SD_BALANCE_NEWIDLE turned on for all domain levels:
TCP STREAM TEST from localhost (::1) port 0 AF_INET6 to localhost (::1) port 0
AF_INET6 : cpu bind
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 115.32
With SD_BALANCE_NEWIDLE turned off for domain levels 2 & 3 (NODES & ALLNODES):
87380 16384 16384 10.00 14685.51
I am curious as to why there would be such a large discrepancy.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-02-16 15:04 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-02-09 7:27 [BUG] soft lockup while booting machine with more than 700 cores raz ben yehuda
2011-02-10 4:47 ` Mike Galbraith
2011-02-10 12:39 ` Ingo Molnar
2011-02-10 6:09 ` raz ben yehuda
2011-02-10 20:56 ` Jack Steiner
2011-02-10 21:03 ` David Miller
2011-02-10 21:12 ` Jack Steiner
2011-02-16 15:04 ` Dimitri Sivanich
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.