do dmesg nós recebemos a seguinte nota -
e1000 0000:02:01.0 eth12983746: Reset adapter
significa que temos problemas com o cartão eth? e porque esse adaptador é reiniciado?
[440924.709103] <IRQ> [<ffffffff816351f1>] dump_stack+0x19/0x1b
[440924.709143] [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
[440924.709150] [<ffffffff8107b29c>] warn_slowpath_fmt+0x5c/0x80
[440924.709158] [<ffffffff8154ca90>] dev_watchdog+0x270/0x280
[440924.709164] [<ffffffff8154c820>] ? dev_graft_qdisc+0x80/0x80
[440924.709175] [<ffffffff8108b0a6>] call_timer_fn+0x36/0x110
[440924.709181] [<ffffffff8154c820>] ? dev_graft_qdisc+0x80/0x80
[440924.709188] [<ffffffff8108dd97>] run_timer_softirq+0x237/0x340
[440924.709199] [<ffffffff81084b0f>] __do_softirq+0xef/0x280
[440924.709217] [<ffffffff8164721c>] call_softirq+0x1c/0x30
[440924.709244] [<ffffffff81016fc5>] do_softirq+0x65/0xa0
[440924.709255] [<ffffffff81084ea5>] irq_exit+0x115/0x120
[440924.709262] [<ffffffff81647e95>] smp_apic_timer_interrupt+0x45/0x60
[440924.709269] [<ffffffff8164655d>] apic_timer_interrupt+0x6d/0x80
[440924.709274] <EOI> [<ffffffff81058e96>] ? native_safe_halt+0x6/0x10
[440924.709296] [<ffffffff8101dbcf>] default_idle+0x1f/0xc0
[440924.709306] [<ffffffff8101e4d6>] arch_cpu_idle+0x26/0x30
[440924.709330] [<ffffffff810d6305>] cpu_startup_entry+0x245/0x290
[440924.709349] [<ffffffff810475fa>] start_secondary+0x1ba/0x230
[440924.709358] ---[ end trace ec33862d8f3f844f ]---
[440924.709514] e1000 0000:02:01.0 eth12983746: Reset adapter
[440924.760748] e1000: eth12983746 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
[440928.960885] Bridge firewalling registered
[440936.219178] xor: automatically using best checksumming function:
[440936.228274] avx : 15404.000 MB/sec
[440936.284354] raid6: sse2x1 gen() 5703 MB/s
[440936.301338] raid6: sse2x2 gen() 7210 MB/s
[440936.318349] raid6: sse2x4 gen() 7671 MB/s
[440936.318354] raid6: using algorithm sse2x4 gen() (7671 MB/s)
[440936.318355] raid6: using ssse3x2 recovery algorithm
[440936.408207] Btrfs loaded
[440936.584783] blk_update_request: I/O error, dev fd0, sector 0
[440938.334462] nr_pdflush_threads exported in /proc is scheduled for removal