Hi folks,
If a LXC server ran for several weeks and if I try to stop a
container, then the server gets stuck for a few minutes (see
attachment).
Please note the
:
[8541088.226013] Task dump for CPU 31:
[8541088.226015] mount R
:
This might be common for all incidents of this kind, but I
lost some logfiles, so I am not 100% sure.
Is this a known issue? Any recommendations for a workaround?
The host runs Debian Jessie with kernel 4.9.30-2~bpo8+1. LXC
is version 2.0.8.
Every helpful comment is highly appreciated.
Harri
:
:
[7699680.691003] br5: port 14(vethMQFEFK) entered forwarding state
[7699680.752888] cgroup: new mount options do not match the existing superblock, will be ignored
[8107259.663902] perf: interrupt took too long (4948 > 4912), lowering kernel.perf_event_max_sample_rate to 40250
[8541088.217956] INFO: rcu_sched self-detected stall on CPU
[8541088.226003] INFO: rcu_sched detected stalls on CPUs/tasks:
[8541088.226008] 31-...: (5249 ticks this GP) idle=629/140000000000001/0 softirq=409754810/409754810 fqs=2905
[8541088.226009]
[8541088.226012] (detected by 21, t=5252 jiffies, g=365563379, c=365563378, q=18871608)
[8541088.226013] Task dump for CPU 31:
[8541088.226015] mount R
[8541088.226015] running task
[8541088.226017] 0 21694 21690 0x00000108
[8541088.226020] ffff9bf231e8cb40
[8541088.226020] ffffffffffffff10
[8541088.226021] ffffffff8381a732
[8541088.226022] 0000000000000010
[8541088.226023] 0000000000000a02
[8541088.226023] ffffa8f3323efd88
[8541088.226024] 0000000000000018
[8541088.226025] 0000000000000010
[8541088.226026] ffffffff8381b6fa
[8541088.226026] ffff9c23e8e9e600
[8541088.226027] ffff9bf231e8cbc0
[8541088.226027] ffff9bf231e8cb98
[8541088.226028] Call Trace:
[8541088.226037] [<ffffffff8381a732>] ? __d_drop+0x32/0x90
[8541088.226040] [<ffffffff8381b6fa>] ? __dentry_kill+0x4a/0x150
[8541088.226042] [<ffffffff8381c23a>] ? shrink_dentry_list+0xca/0x2e0
[8541088.226045] [<ffffffff8381c522>] ? shrink_dcache_sb+0xd2/0x120
[8541088.226048] [<ffffffff8380732c>] ? do_remount_sb+0x15c/0x1d0
[8541088.226051] [<ffffffff83827169>] ? do_mount+0x709/0xc70
[8541088.226056] [<ffffffff8379fe6a>] ? memdup_user+0x4a/0x70
[8541088.226058] [<ffffffff838279b4>] ? SyS_mount+0x84/0xc0
[8541088.226062] [<ffffffff83603b81>] ? do_syscall_64+0x81/0x190
[8541088.226066] [<ffffffff83c0786f>] ? entry_SYSCALL64_slow_path+0x25/0x25
[8541088.485916] 31-...: (5249 ticks this GP) idle=629/140000000000001/0 softirq=409754810/409754810 fqs=2935
[8541088.603637] (t=5351 jiffies g=365563379 c=365563378 q=18872108)
[8541088.678791] Task dump for CPU 31:
[8541088.678793] mount R running task 0 21694 21690 0x00000108
[8541088.678797] 0000000000000087 ffffffff836a4f83 000000000000001f 0000000000000087
[8541088.678799] ffffffff8377c501 ffff9c23ff5d9540 ffffffff8424e3c0 0000000000000000
[8541088.678800] ffff9c1bc35af000 ffffffff836e145e ffff9c23ff5d87c0 00000000000187c0
[8541088.678802] Call Trace:
[8541088.678804] <IRQ>
[8541088.678811] [<ffffffff836a4f83>] ? sched_show_task+0xd3/0x140
[8541088.678816] [<ffffffff8377c501>] ? rcu_dump_cpu_stacks+0x7b/0xb4
[8541088.678821] [<ffffffff836e145e>] ? rcu_check_callbacks+0x6be/0x800
[8541088.678825] [<ffffffff836f7340>] ? tick_sched_do_timer+0x30/0x30
[8541088.678827] [<ffffffff836e7e78>] ? update_process_times+0x28/0x50
[8541088.678828] [<ffffffff836f6d50>] ? tick_sched_handle.isra.13+0x20/0x50
[8541088.678829] [<ffffffff836f7378>] ? tick_sched_timer+0x38/0x70
[8541088.678830] [<ffffffff836e8b2c>] ? __hrtimer_run_queues+0xdc/0x250
[8541088.678831] [<ffffffff836e8f79>] ? hrtimer_interrupt+0x99/0x190
[8541088.678837] [<ffffffff83c0a0e9>] ? smp_apic_timer_interrupt+0x39/0x50
[8541088.678838] [<ffffffff83c09402>] ? apic_timer_interrupt+0x82/0x90
[8541088.678839] <EOI>
[8541088.678843] [<ffffffff8381a732>] ? __d_drop+0x32/0x90
[8541088.678845] [<ffffffff8381b6fa>] ? __dentry_kill+0x4a/0x150
[8541088.678846] [<ffffffff8381c23a>] ? shrink_dentry_list+0xca/0x2e0
[8541088.678847] [<ffffffff8381c522>] ? shrink_dcache_sb+0xd2/0x120
[8541088.678850] [<ffffffff8380732c>] ? do_remount_sb+0x15c/0x1d0
[8541088.678853] [<ffffffff83827169>] ? do_mount+0x709/0xc70
[8541088.678857] [<ffffffff8379fe6a>] ? memdup_user+0x4a/0x70
[8541088.678859] [<ffffffff838279b4>] ? SyS_mount+0x84/0xc0
[8541088.678862] [<ffffffff83603b81>] ? do_syscall_64+0x81/0x190
[8541088.678864] [<ffffffff83c0786f>] ? entry_SYSCALL64_slow_path+0x25/0x25
[8541098.554005] ------------[ cut here ]------------
[8541098.554030] WARNING: CPU: 21 PID: 0 at /build/linux-PrKZyy/linux-4.9.30/net/sched/sch_generic.c:316 dev_watchdog+0x220/0x230
[8541098.554032] NETDEV WATCHDOG: eth2 (igb): transmit queue 3 timed out
[8541098.554033] Modules linked in: tcp_diag inet_diag 8021q garp mrp xt_multiport xt_REDIRECT nf_nat_redirect nf_log_ipv6 nf_log_ipv4 nf_log_common xt_LOG xt_limit ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_tcpudp xt_conntrack veth bonding bridge stp llc iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_mangle iptable_filter ip_tables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 nf_nat nf_conntrack ip6table_mangle ip6table_filter ip6_tables x_tables fuse drbd lru_cache libcrc32c crc32c_generic dm_crypt intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate joydev evdev intel_uncore mxm_wmi ipmi_devintf mei_me iTCO_wdt iTCO_vendor_support lpc_ich mei mfd_core
[8541098.554084] intel_rapl_perf pcspkr acpi_pad shpchp acpi_power_meter wmi ioatdma ipmi_si ipmi_msghandler button ext4 crc16 jbd2 fscrypto mbcache btrfs xor raid6_pq dm_mod md_mod hid_generic hid_cherry usbhid hid sg sd_mod crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper ahci libahci ehci_pci cryptd xhci_pci xhci_hcd ehci_hcd libata megaraid_sas i2c_i801 i2c_smbus igb usbcore i2c_algo_bit dca usb_common scsi_mod ptp pps_core
[8541098.554123] CPU: 21 PID: 0 Comm: swapper/21 Not tainted 4.9.0-0.bpo.3-amd64 #1 Debian 4.9.30-2~bpo8+1
[8541098.554124] Hardware name: Intel Corporation S2600CWR/S2600CWR, BIOS SE5C610.86B.01.01.0020.122820161512 12/28/2016
[8541098.554126] 0000000000000000 ffffffff83929b75 ffff9c03ffd43e38 0000000000000000
[8541098.554130] ffffffff83677944 0000000000000003 ffff9c03ffd43e90 ffff9c23edf88000
[8541098.554133] 0000000000000015 ffff9c23ee35a940 0000000000000008 ffffffff836779bf
[8541098.554136] Call Trace:
[8541098.554138] <IRQ>
[8541098.554145] [<ffffffff83929b75>] ? dump_stack+0x5c/0x77
[8541098.554150] [<ffffffff83677944>] ? __warn+0xc4/0xe0
[8541098.554153] [<ffffffff836779bf>] ? warn_slowpath_fmt+0x5f/0x80
[8541098.554156] [<ffffffff83b2cef0>] ? dev_watchdog+0x220/0x230
[8541098.554159] [<ffffffff83b2ccd0>] ? dev_deactivate_queue.constprop.27+0x60/0x60
[8541098.554164] [<ffffffff836e6310>] ? call_timer_fn+0x30/0x130
[8541098.554167] [<ffffffff836e78fc>] ? run_timer_softirq+0x1dc/0x440
[8541098.554170] [<ffffffff83932db4>] ? timerqueue_add+0x54/0xa0
[8541098.554171] [<ffffffff836e82c8>] ? enqueue_hrtimer+0x38/0x80
[8541098.554176] [<ffffffff83c0a2e6>] ? __do_softirq+0x106/0x292
[8541098.554180] [<ffffffff8367dbe8>] ? irq_exit+0x98/0xa0
[8541098.554182] [<ffffffff83c0a0ee>] ? smp_apic_timer_interrupt+0x3e/0x50
[8541098.554185] [<ffffffff83c09402>] ? apic_timer_interrupt+0x82/0x90
[8541098.554186] <EOI>
[8541098.554190] [<ffffffff83acce93>] ? cpuidle_enter_state+0x113/0x260
[8541098.554194] [<ffffffff836bc09e>] ? cpu_startup_entry+0x17e/0x260
[8541098.554199] [<ffffffff8364843d>] ? start_secondary+0x14d/0x190
[8541098.554200] ---[ end trace 4b45d8c5d8225396 ]---
[8541098.554218] igb 0000:81:00.0 eth2: Reset adapter
[8541099.546082] igb 0000:81:00.0 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[8541101.706078] igb 0000:81:00.0: exceed max 2 second
[8541101.770064] bond2: link status up again after 0 ms for interface eth2
[8541112.870069] NMI watchdog: BUG: soft lockup - CPU#31 stuck for 23s! [mount:21694]
[8541112.960762] Modules linked in: tcp_diag inet_diag 8021q garp mrp xt_multiport xt_REDIRECT nf_nat_redirect nf_log_ipv6 nf_log_ipv4 nf_log_common xt_LOG xt_limit ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_tcpudp xt_conntrack veth bonding bridge stp llc iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_mangle iptable_filter ip_tables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 nf_nat nf_conntrack ip6table_mangle ip6table_filter ip6_tables x_tables fuse drbd lru_cache libcrc32c crc32c_generic dm_crypt intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate joydev evdev intel_uncore mxm_wmi ipmi_devintf mei_me iTCO_wdt iTCO_vendor_support lpc_ich mei mfd_core
[8541112.960797] intel_rapl_perf pcspkr acpi_pad shpchp acpi_power_meter wmi ioatdma ipmi_si ipmi_msghandler button ext4 crc16 jbd2 fscrypto mbcache btrfs xor raid6_pq dm_mod md_mod hid_generic hid_cherry usbhid hid sg sd_mod crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper ahci libahci ehci_pci cryptd xhci_pci xhci_hcd ehci_hcd libata megaraid_sas i2c_i801 i2c_smbus igb usbcore i2c_algo_bit dca usb_common scsi_mod ptp pps_core
[8541112.960823] CPU: 31 PID: 21694 Comm: mount Tainted: G W 4.9.0-0.bpo.3-amd64 #1 Debian 4.9.30-2~bpo8+1
[8541112.960824] Hardware name: Intel Corporation S2600CWR/S2600CWR, BIOS SE5C610.86B.01.01.0020.122820161512 12/28/2016
[8541112.960825] task: ffff9c1bc35af000 task.stack: ffffa8f3323ec000
[8541112.960826] RIP: 0010:[<ffffffff8381a732>] [<ffffffff8381a732>] __d_drop+0x32/0x90
[8541112.960833] RSP: 0018:ffffa8f3323efd88 EFLAGS: 00000a06
[8541112.960834] RAX: 00000000013d896a RBX: ffff9be8cc6b5780 RCX: 0000000000000007
[8541112.960835] RDX: ffffa8f30a0afb50 RSI: 0000000000000000 RDI: ffff9be8cc6b5780
[8541112.960835] RBP: ffff9c23e8e9e600 R08: ffff9be8cc6b5800 R09: 0000000000000000
[8541112.960836] R10: 00000000000009ff R11: 0000000000007a86 R12: ffff9be8cc6b57d8
[8541112.960836] R13: ffffa8f3323efdf0 R14: ffff9be8cc6b5780 R15: ffff9c23e8e9e658
[8541112.960838] FS: 00007fb058a0c840(0000) GS:ffff9c23ff5c0000(0000) knlGS:0000000000000000
[8541112.960838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[8541112.960839] CR2: 00007ffe2f4e2f78 CR3: 0000003feed60000 CR4: 00000000003406e0
[8541112.960840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[8541112.960840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[8541112.960841] Stack:
[8541112.960842] ffffffff8381b6fa ffff9c23e8e9e600 ffff9be8cc6b5800 ffff9be8cc6b57d8
[8541112.960844] ffffffff8381c23a 0000000000000040 0000000007891c30 0000000007891c30
[8541112.960846] ffffa8f3323efdf0 0000000000000040 ffff9c23f22b9540 ffffffff8381c522
[8541112.960847] Call Trace:
[8541112.960851] [<ffffffff8381b6fa>] ? __dentry_kill+0x4a/0x150
[8541112.960853] [<ffffffff8381c23a>] ? shrink_dentry_list+0xca/0x2e0
[8541112.960855] [<ffffffff8381c522>] ? shrink_dcache_sb+0xd2/0x120
[8541112.960857] [<ffffffff8380732c>] ? do_remount_sb+0x15c/0x1d0
[8541112.960860] [<ffffffff83827169>] ? do_mount+0x709/0xc70
[8541112.960865] [<ffffffff8379fe6a>] ? memdup_user+0x4a/0x70
[8541112.960867] [<ffffffff838279b4>] ? SyS_mount+0x84/0xc0
[8541112.960871] [<ffffffff83603b81>] ? do_syscall_64+0x81/0x190
[8541112.960875] [<ffffffff83c0786f>] ? entry_SYSCALL64_slow_path+0x25/0x25
[8541112.960876] Code: 7f 10 00 74 5c 48 3b 7f 18 74 65 b9 20 00 00 00 2b 0d 53 de b0 00 8b 47 20 48 8b 15 41 de b0 00 d3 e8 48 8d 14 c2 f0 0f ba 2a 00 <72> 36 40 f6 c7 01 48 8b 4f 08 48 8b 77 10 75 33 48 8b 06 83 e0
[8541119.674828] drbd data2: sock was shut down by peer
[8541119.674895] drbd data2: peer( Secondary -> Unknown ) conn( Connected -> BrokenPipe ) pdsk( UpToDate -> DUnknown )
[8541119.674903] drbd data2: short read (expected size 16)
[8541119.674912] drbd data2: ack_receiver terminated
[8541119.674914] drbd data2: Terminating drbd_a_data2
[8541119.674976] block drbd2: new current UUID 193675A35EFE7BC5:C72818DD00E7AEA5:CEA86FF033092D6E:9B66D47847E53837
[8541120.574102] INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 31-... } 5512 jiffies s: 1293 root: 0x80000000/.
[8541120.705597] blocking rcu_node structures:
[8541120.755839] Task dump for CPU 31:
[8541120.755841] mount R running task 0 21694 21690 0x00000108
[8541120.755847] ffff9bfe6bbba240 ffffffffffffff10 ffffffff8381a732 0000000000000010
[8541120.755852] 0000000000000202 0000000000000246 0000000000000018 0000000000000010
[8541120.755856] ffff9c23e8e9e600 ffff9c00f2bf9980 ffff9c00f2bf9c80 ffff9c23e8e9e600
[8541120.755860] Call Trace:
[8541120.755869] [<ffffffff8381a732>] ? __d_drop+0x32/0x90
[8541120.755873] [<ffffffff8381c23a>] ? shrink_dentry_list+0xca/0x2e0
[8541120.755876] [<ffffffff8381c522>] ? shrink_dcache_sb+0xd2/0x120
[8541120.755880] [<ffffffff8380732c>] ? do_remount_sb+0x15c/0x1d0
[8541120.755884] [<ffffffff83827169>] ? do_mount+0x709/0xc70
[8541120.755890] [<ffffffff8379fe6a>] ? memdup_user+0x4a/0x70
[8541120.755893] [<ffffffff838279b4>] ? SyS_mount+0x84/0xc0
[8541120.755897] [<ffffffff83603b81>] ? do_syscall_64+0x81/0x190
[8541120.755902] [<ffffffff83c0786f>] ? entry_SYSCALL64_slow_path+0x25/0x25
[8541126.970134] drbd data1: PingAck did not arrive in time.
[8541127.034851] drbd data1: peer( Primary -> Unknown ) conn( Connected -> NetworkFailure ) pdsk( UpToDate -> DUnknown )
[8541127.034919] drbd data1: error receiving Data, e: -5 l: 4096!
[8541127.104887] drbd data1: ack_receiver terminated
[8541127.104889] drbd data1: Terminating drbd_a_data1
[8541139.881013] br5: port 8(veth9P72W3) entered disabled state
[8541139.881626] device veth9P72W3 left promiscuous mode
[8541139.881628] br5: port 8(veth9P72W3) entered disabled state
[8541139.893311] igb 0000:81:00.2 eth4: Reset adapter
[8541139.950967] igb 0000:81:00.3 eth5: Reset adapter
[8541140.006126] igb 0000:81:00.0 eth2: igb: eth2 NIC Link is Down
[8541140.008593] igb 0000:81:00.1 eth3: Reset adapter
[8541140.067315] igb 0000:81:00.1 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[8541140.067803] igb 0000:81:00.3 eth5: igb: eth5 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[8541140.073890] igb 0000:81:00.2 eth4: igb: eth4 NIC Link is Up 1000 Mbps Half Duplex, Flow Control: RX/TX
[8541140.073893] igb 0000:81:00.2: EEE Disabled: unsupported at half duplex. Re-enable using ethtool when at full duplex.
[8541140.073953] igb 0000:81:00.2: read 1000Base-T Status Reg
[8541140.222813] igb 0000:81:00.2 eth4: igb: eth4 NIC Link is Down
[8541140.405175] igb 0000:81:00.3 eth5: igb: eth5 NIC Link is Down
[8541142.346311] igb 0000:81:00.1: exceed max 2 second
[8541142.404888] igb 0000:81:00.1 eth3: igb: eth3 NIC Link is Down
[8541142.842723] igb 0000:81:00.2 eth4: Reset adapter
[8541143.566588] igb 0000:81:00.3 eth5: igb: eth5 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[8541143.714571] igb 0000:81:00.0 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[8541143.718224] bond2: link status up again after 0 ms for interface eth2
[8541144.438576] igb 0000:81:00.1 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[8541144.442237] bond2: link status up again after 0 ms for interface eth3
[8541161.006274] INFO: rcu_sched self-detected stall on CPU
[8541161.014275] INFO: rcu_sched detected stalls on CPUs/tasks:
[8541161.014281] 31-...: (1 GPs behind) idle=737/2/0 softirq=409754812/409754813 fqs=2561
[8541161.014281]
[8541161.014301] (detected by 13, t=5252 jiffies, g=365563382, c=365563381, q=126743742)
[8541161.014302] Task dump for CPU 31:
[8541161.014303] swapper/31 R
[8541161.014304] running task
[8541161.014305] 0 0 1 0x00000008
[8541161.014308] 0000000000000a85
[8541161.014309] 0000000000000004
[8541161.014310] ffff9c23ff5d87c0
[8541161.014310] 000000000000001f
[8541161.014311] 0000000000000000
[8541161.014312] ffff9c23ff5d5f18
[8541161.014312] 0000000000000000
[8541161.014313] ffffffffffffff10
[8541161.014314] ffffffff83acce93
[8541161.014315] 0000000000000010
[8541161.014315] 0000000000000246
[8541161.014316] ffffa8f318b53ea0
[8541161.014317] Call Trace:
[8541161.014326] [<ffffffff83acce93>] ? cpuidle_enter_state+0x113/0x260
[8541161.014333] [<ffffffff836bc09e>] ? cpu_startup_entry+0x17e/0x260
[8541161.014339] [<ffffffff8364843d>] ? start_secondary+0x14d/0x190
[8541161.253442] 31-...: (1 GPs behind) idle=737/2/0 softirq=409754812/409754813 fqs=2592
[8541161.350359] (t=5340 jiffies g=365563382 c=365563381 q=126743774)
[8541161.426552] Task dump for CPU 31:
[8541161.426553] swapper/31 R running task 0 0 1 0x00000008
[8541161.426556] 0000000000000087 ffffffff836a4f83 000000000000001f 0000000000000087
[8541161.426558] ffffffff8377c501 ffff9c23ff5d9540 ffffffff8424e3c0 0000000000000000
[8541161.426560] ffff9c23f2b1c100 ffffffff836e145e ffff9c23ff5d87c0 00000000000187c0
[8541161.426562] Call Trace:
[8541161.426563] <IRQ>
[8541161.426568] [<ffffffff836a4f83>] ? sched_show_task+0xd3/0x140
[8541161.426592] [<ffffffff8377c501>] ? rcu_dump_cpu_stacks+0x7b/0xb4
[8541161.426597] [<ffffffff836e145e>] ? rcu_check_callbacks+0x6be/0x800
[8541161.426613] [<ffffffff836f7340>] ? tick_sched_do_timer+0x30/0x30
[8541161.426614] [<ffffffff836e7e78>] ? update_process_times+0x28/0x50
[8541161.426616] [<ffffffff836f6d50>] ? tick_sched_handle.isra.13+0x20/0x50
[8541161.426617] [<ffffffff836f7378>] ? tick_sched_timer+0x38/0x70
[8541161.426618] [<ffffffff836e8b2c>] ? __hrtimer_run_queues+0xdc/0x250
[8541161.426620] [<ffffffff836e8f79>] ? hrtimer_interrupt+0x99/0x190
[8541161.426625] [<ffffffff83c0a0e9>] ? smp_apic_timer_interrupt+0x39/0x50
[8541161.426626] [<ffffffff83c09402>] ? apic_timer_interrupt+0x82/0x90
[8541161.426630] [<ffffffff8381a2c0>] ? d_set_d_op+0xd0/0xd0
[8541161.426632] [<ffffffff8381a2cd>] ? __d_free_external+0xd/0x30
[8541161.426633] [<ffffffff836dfc13>] ? rcu_process_callbacks+0x203/0x5c0
[8541161.426635] [<ffffffff83c0a2e6>] ? __do_softirq+0x106/0x292
[8541161.426640] [<ffffffff8367dbe8>] ? irq_exit+0x98/0xa0
[8541161.426641] [<ffffffff83c0a0ee>] ? smp_apic_timer_interrupt+0x3e/0x50
[8541161.426643] [<ffffffff83c09402>] ? apic_timer_interrupt+0x82/0x90
[8541161.426643] <EOI>
[8541161.426645] [<ffffffff83acce93>] ? cpuidle_enter_state+0x113/0x260
[8541161.426647] [<ffffffff836bc09e>] ? cpu_startup_entry+0x17e/0x260
[8541161.426650] [<ffffffff8364843d>] ? start_secondary+0x14d/0x190
[8541161.530323] INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 31-... } 5388 jiffies s: 1297 root: 0x80000000/.
[8541161.661907] blocking rcu_node structures:
[8541161.712165] Task dump for CPU 31:
[8541161.712167] swapper/31 R running task 0 0 1 0x00000008
[8541161.712171] 0000000000000a85 0000000000000004 ffff9c23ff5d87c0 000000000000001f
[8541161.712173] 0000000000000000 ffff9c23ff5d5f18 0000000000000000 ffffffffffffff10
[8541161.712175] ffffffff83acce93 0000000000000010 0000000000000246 ffffa8f318b53ea0
[8541161.712178] Call Trace:
[8541161.712187] [<ffffffff83acce93>] ? cpuidle_enter_state+0x113/0x260
[8541161.712192] [<ffffffff836bc09e>] ? cpu_startup_entry+0x17e/0x260
[8541161.712198] [<ffffffff8364843d>] ? start_secondary+0x14d/0x190
[8541175.033152] br4: port 1(eth4) entered disabled state
[8541175.054922] drbd data1: Connection closed
[8541175.054994] drbd data1: conn( NetworkFailure -> Unconnected )
[8541175.055003] drbd data1: receiver terminated
:
:
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