[352267.664312] e1000e: eth1 NIC Link is Down [352507.325163] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [352518.392305] e1000e: eth1 NIC Link is Down [352541.201157] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None [600541.720109] INFO: rcu_sched detected stall on CPU 0 (t=0 jiffies) [600541.720133] sending NMI to all CPUs: [600541.720147] NMI backtrace for cpu 1 [600541.720154] CPU 1 [600541.720159] Modules linked in: sha256_generic cryptd aes_x86_64 aes_generic cbc tun cpufreq_powersave cpufreq_userspace cpufreq_conservative cpufreq_stats ipt_MASQUERADE iptable_nat nf_nat ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop dm_crypt snd_pcm snd_page_alloc snd_timer radeon snd ttm drm_kms_helper evdev drm sp5100_tco soundcore amd64_edac_mod edac_mce_amd i2c_piix4 edac_core pcspkr powernow_k8 mperf k10temp power_supply i2c_algo_bit i2c_core processor shpchp button thermal_sys ext4 crc16 jbd2 mbcache btrfs crc32c libcrc32c zlib_deflate dm_mod raid0 raid1 md_mod sg sd_mod crc_t10dif ata_generic ohci_hcd pata_atiixp ahci libahci ehci_hcd libata tg3 libphy e1000e scsi_mod usbcore usb_common [last unloaded: scsi_wait_scan] [600541.720293] [600541.720301] Pid: 11815, comm: kworker/1:2 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.65-1+deb7u2 HP ProLiant MicroServer [600541.720312] RIP: 0010:[] [] signal_pending_state+0x17/0x40 [600541.720331] RSP: 0018:ffff8800dda35e30 EFLAGS: 00000002 [600541.720337] RAX: ffff8800dda35fd8 RBX: 0000000000000000 RCX: ffff8800dda35fd8 [600541.720343] RDX: 000000000000fd3d RSI: 0000000000000002 RDI: 0000000000000001 [600541.720349] RBP: ffff880213a04080 R08: 0000000000000000 R09: ffff880216cde000 [600541.720355] R10: 00000000ffffffff R11: ffff8800dd86ad40 R12: 0000000000000001 [600541.720361] R13: ffff880213a04080 R14: 0000000000000001 R15: ffff880213a04380 [600541.720368] FS: 00007f099c2de700(0000) GS:ffff88021fc80000(0000) knlGS:0000000000000000 [600541.720375] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [600541.720380] CR2: 00007f099d5557d8 CR3: 000000020d59d000 CR4: 00000000000006e0 [600541.720387] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [600541.720393] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [600541.720400] Process kworker/1:2 (pid: 11815, threadinfo ffff8800dda34000, task ffff880213a04080) [600541.720405] Stack: [600541.720416] ffff88021fc92780 ffff880213a04080 ffff8800dd86ad68 ffffffff8134f60b [600541.720427] ffff88021fc8d640 ffffffff8105b723 0000000000012780 ffff8800dda35fd8 [600541.720436] ffff8800dda35fd8 ffff880213a04080 ffff8800dd86ad68 ffff8800dd86ad68 [600541.720445] Call Trace: [600541.720460] [] ? __schedule+0xfb/0x610 [600541.720470] [] ? process_one_work+0x1e5/0x269 [600541.720479] [] ? worker_thread+0x140/0x145 [600541.720488] [] ? manage_workers.isra.25+0x15b/0x15b [600541.720497] [] ? kthread+0x76/0x7e [600541.720507] [] ? kernel_thread_helper+0x4/0x10 [600541.720516] [] ? kthread_worker_fn+0x139/0x139 [600541.720525] [] ? gs_change+0x13/0x13 [600541.720529] Code: 00 00 48 39 ce 7d 0c 8b 42 30 39 42 64 0f 97 c0 0f b6 c0 c3 41 54 49 89 fc 55 48 89 f5 53 31 db 40 f6 c7 81 74 27 be 02 00 00 00 <48> 89 ef e8 ff cc ff ff 85 c0 74 16 41 80 e4 01 b3 01 75 0e 48 [600541.720675] Call Trace: [600541.720682] [] ? __schedule+0xfb/0x610 [600541.720689] [] ? process_one_work+0x1e5/0x269 [600541.720698] [] ? worker_thread+0x140/0x145 [600541.720705] [] ? manage_workers.isra.25+0x15b/0x15b [600541.720714] [] ? kthread+0x76/0x7e [600541.720723] [] ? kernel_thread_helper+0x4/0x10 [600541.720732] [] ? kthread_worker_fn+0x139/0x139 [600541.720740] [] ? gs_change+0x13/0x13 [600541.720746] NMI backtrace for cpu 0 [600541.720751] CPU 0 [600541.720755] Modules linked in: sha256_generic cryptd aes_x86_64 aes_generic cbc tun cpufreq_powersave cpufreq_userspace cpufreq_conservative cpufreq_stats ipt_MASQUERADE iptable_nat nf_nat ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop dm_crypt snd_pcm snd_page_alloc snd_timer radeon snd ttm drm_kms_helper evdev drm sp5100_tco soundcore amd64_edac_mod edac_mce_amd i2c_piix4 edac_core pcspkr powernow_k8 mperf k10temp power_supply i2c_algo_bit i2c_core processor shpchp button thermal_sys ext4 crc16 jbd2 mbcache btrfs crc32c libcrc32c zlib_deflate dm_mod raid0 raid1 md_mod sg sd_mod crc_t10dif ata_generic ohci_hcd pata_atiixp ahci libahci ehci_hcd libata tg3 libphy e1000e scsi_mod usbcore usb_common [last unloaded: scsi_wait_scan] [600541.720890] [600541.720897] Pid: 0, comm: swapper/0 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.65-1+deb7u2 HP ProLiant MicroServer [600541.720908] RIP: 0010:[] [] __bitmap_empty+0xa/0x52 [600541.720926] RSP: 0018:ffff88021fc03e20 EFLAGS: 00000012 [600541.720932] RAX: 0000000000000008 RBX: 0000000000002710 RCX: 0000000000000040 [600541.720938] RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff8168ebc0 [600541.720944] RBP: ffffffff81622280 R08: 0000000000000002 R09: 0000000000000000 [600541.720950] R10: 7fffffffffffffff R11: 7fffffffffffffff R12: ffffffff81622380 [600541.720955] R13: ffff88021fc03f50 R14: ffff88021fc0da78 R15: ffffffff8106c4b4 [600541.720963] FS: 00007fd464d01700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [600541.720970] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [600541.720975] CR2: 00007fd466455b28 CR3: 00000001dd923000 CR4: 00000000000006f0 [600541.720981] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [600541.720987] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [600541.720994] Process swapper/0 (pid: 0, threadinfo ffffffff81600000, task ffffffff8160d020) [600541.720999] Stack: [600541.721007] ffffffff8102513f ffff88021fc0ddc0 ffffffff810963b8 ffff880216cb65c0 [600541.721017] 0000000108f1f7b3 0000000000000000 0000000000000000 0000000000000000 [600541.721027] 0000000000000000 ffff88021fc03f50 ffff88021fc0da78 ffffffff8106c4b4 [600541.721036] Call Trace: [600541.721044] [600541.721061] [] ? arch_trigger_all_cpu_backtrace+0x5e/0x7b [600541.721071] [] ? __rcu_pending+0x82/0x358 [600541.721082] [] ? tick_nohz_handler+0xd0/0xd0 [600541.721089] [] ? rcu_check_callbacks+0x90/0xcc [600541.721098] [] ? update_process_times+0x31/0x63 [600541.721107] [] ? tick_sched_timer+0x6a/0x90 [600541.721116] [] ? __run_hrtimer+0xac/0x135 [600541.721125] [] ? hrtimer_interrupt+0xd7/0x1b1 [600541.721134] [] ? sched_clock+0x5/0x8 [600541.721144] [] ? smp_apic_timer_interrupt+0x6f/0x82 [600541.721153] [] ? apic_timer_interrupt+0x6e/0x80 [600541.721158] [600541.721171] [] ? native_safe_halt+0x2/0x3 [600541.721179] [] ? default_idle+0x47/0x7f [600541.721187] [] ? amd_e400_idle+0xbf/0xe4 [600541.721196] [] ? cpu_idle+0xaf/0xf2 [600541.721206] [] ? start_kernel+0x3bd/0x3c8 [600541.721216] [] ? early_idt_handlers+0x140/0x140 [600541.721225] [] ? x86_64_start_kernel+0x104/0x111 [600541.721230] Code: 8d 44 24 20 4c 89 4c 24 48 c7 44 24 08 10 00 00 00 48 89 44 24 18 e8 5a ff ff ff 48 83 c4 58 c3 90 89 f0 b9 40 00 00 00 99 f7 f9 <31> d2 eb 0b 48 ff c2 48 83 7c d7 f8 00 75 36 39 c2 7c f1 40 f6 [600541.721378] Call Trace: [600541.721381] [] ? arch_trigger_all_cpu_backtrace+0x5e/0x7b [600541.721396] [] ? __rcu_pending+0x82/0x358 [600541.721405] [] ? tick_nohz_handler+0xd0/0xd0 [600541.721412] [] ? rcu_check_callbacks+0x90/0xcc [600541.721420] [] ? update_process_times+0x31/0x63 [600541.721429] [] ? tick_sched_timer+0x6a/0x90 [600541.721436] [] ? __run_hrtimer+0xac/0x135 [600541.721445] [] ? hrtimer_interrupt+0xd7/0x1b1 [600541.721452] [] ? sched_clock+0x5/0x8 [600541.721462] [] ? smp_apic_timer_interrupt+0x6f/0x82 [600541.721470] [] ? apic_timer_interrupt+0x6e/0x80 [600541.721475] [] ? native_safe_halt+0x2/0x3 [600541.721489] [] ? default_idle+0x47/0x7f [600541.721496] [] ? amd_e400_idle+0xbf/0xe4 [600541.721505] [] ? cpu_idle+0xaf/0xf2 [600541.721513] [] ? start_kernel+0x3bd/0x3c8 [600541.721522] [] ? early_idt_handlers+0x140/0x140 [600541.721531] [] ? x86_64_start_kernel+0x104/0x111 [802751.848312] e1000e: eth1 NIC Link is Down [802767.205129] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [802778.724321] e1000e: eth1 NIC Link is Down [802801.153158] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None [802986.492311] e1000e: eth1 NIC Link is Down [803020.233165] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [803031.588316] e1000e: eth1 NIC Link is Down [803053.933159] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None