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Old 07-06-2014, 10:38 AM   #1
theAdmiral
Member
 
Registered: Oct 2008
Location: Boise, Idaho
Distribution: Debian GNU/Linux (Jessie) + KDE
Posts: 168

Rep: Reputation: 4
Dropping network connection once/twice per day on Debian 7.5 Realtek RTL8111/8168B


I was having a connectivity problem where the network connection just drops about once or twice a day. I yesterday I ran update and upgrade with 0 errors. However, I am still having the same network connectivity problem. I opened up Network Connections from the Applications | System Tools menu, and believe it or not, there is no connection under Wired Connections, but I am still able to internet, although with stated hiccups. Where can I begin to troubleshoot this issue?

Much thanks in advance for your help.
 
Old 07-08-2014, 05:14 PM   #2
kentyler
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Registered: Dec 2008
Location: Newark Ohio
Distribution: Fedora Core
Posts: 270

Rep: Reputation: 38
What's the output of ifconfig? All fields except TX, RX, and txquelen should be 0.

To me it sounds like something is wrong with the switch or router you are connected to.

Are there any Ethernet device errors in the output if you type
dmesg
?
 
Old 07-08-2014, 07:39 PM   #3
theAdmiral
Member
 
Registered: Oct 2008
Location: Boise, Idaho
Distribution: Debian GNU/Linux (Jessie) + KDE
Posts: 168

Original Poster
Rep: Reputation: 4
OP Reply #1

I am perplexed by the output of:

Quote:
john@debian:~$ ifconfig
bash: ifconfig: command not found
john@debian:~$
A screenshot below shows proof.

As to the dmesg command, I ran:

Quote:
$ dmesg > myfile
to send entire output of dmesg command to a simple text file, which I opened in gedit. Then I copied contents of what is shown to the box below:

Quote:
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.2.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.2.57-3+deb7u2
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 root=UUID=ba8bbb89-adbb-4412-b8e3-b0688adacbb5 ro quiet
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009d800 (usable)
[ 0.000000] BIOS-e820: 000000000009d800 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 0000000020000000 (usable)
[ 0.000000] BIOS-e820: 0000000020000000 - 0000000020200000 (reserved)
[ 0.000000] BIOS-e820: 0000000020200000 - 0000000040000000 (usable)
[ 0.000000] BIOS-e820: 0000000040000000 - 0000000040200000 (reserved)
[ 0.000000] BIOS-e820: 0000000040200000 - 00000000baaa1000 (usable)
[ 0.000000] BIOS-e820: 00000000baaa1000 - 00000000baae8000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000baae8000 - 00000000baaf0000 (ACPI data)
[ 0.000000] BIOS-e820: 00000000baaf0000 - 00000000bab06000 (reserved)
[ 0.000000] BIOS-e820: 00000000bab06000 - 00000000bab08000 (usable)
[ 0.000000] BIOS-e820: 00000000bab08000 - 00000000bab15000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000bab15000 - 00000000bab66000 (reserved)
[ 0.000000] BIOS-e820: 00000000bab66000 - 00000000baba9000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000baba9000 - 00000000bae24000 (usable)
[ 0.000000] BIOS-e820: 00000000bae24000 - 00000000bae2a000 (reserved)
[ 0.000000] BIOS-e820: 00000000bae2a000 - 00000000bae38000 (usable)
[ 0.000000] BIOS-e820: 00000000bae38000 - 00000000baff4000 (reserved)
[ 0.000000] BIOS-e820: 00000000baff4000 - 00000000bb000000 (usable)
[ 0.000000] BIOS-e820: 00000000bbe00000 - 00000000c0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved)
[ 0.000000] BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
[ 0.000000] BIOS-e820: 0000000100000000 - 000000013f800000 (usable)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.6 present.
[ 0.000000] DMI: Hewlett-Packard s5-1204/2ABF, BIOS 7.14 10/21/2011
[ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
[ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
[ 0.000000] No AGP bridge found
[ 0.000000] last_pfn = 0x13f800 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-CFFFF write-protect
[ 0.000000] D0000-E7FFF uncachable
[ 0.000000] E8000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 000000000 mask F00000000 write-back
[ 0.000000] 1 base 100000000 mask FC0000000 write-back
[ 0.000000] 2 base 0BB800000 mask FFF800000 uncachable
[ 0.000000] 3 base 0BC000000 mask FFC000000 uncachable
[ 0.000000] 4 base 0C0000000 mask FC0000000 uncachable
[ 0.000000] 5 base 13F800000 mask FFF800000 uncachable
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] 8 disabled
[ 0.000000] 9 disabled
[ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[ 0.000000] e820 update range: 00000000bb800000 - 0000000100000000 (usable) ==> (reserved)
[ 0.000000] last_pfn = 0xbb000 max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [ffff8800000fcc30] fcc30
[ 0.000000] initial memory mapped : 0 - 20000000
[ 0.000000] Base memory trampoline at [ffff880000098000] 98000 size 20480
[ 0.000000] reserving inaccessible SNB gfx pages
[ 0.000000] init_memory_mapping: 0000000000000000-00000000bb000000
[ 0.000000] 0000000000 - 00bb000000 page 2M
[ 0.000000] kernel direct mapping tables up to bb000000 @ 1fffc000-20000000
[ 0.000000] init_memory_mapping: 0000000100000000-000000013f800000
[ 0.000000] 0100000000 - 013f800000 page 2M
[ 0.000000] kernel direct mapping tables up to 13f800000 @ baffe000-bb000000
[ 0.000000] RAMDISK: 36bea000 - 375ed000
[ 0.000000] ACPI: RSDP 00000000000f0420 00024 (v02 HPQOEM)
[ 0.000000] ACPI: XSDT 00000000baae8070 0005C (v01 HPQOEM SLIC-CPC 01072009 AMI 00010013)
[ 0.000000] ACPI: FACP 00000000baaeec90 000F4 (v04 HPQOEM SLIC-CPC 01072009 AMI 00010013)
[ 0.000000] ACPI: DSDT 00000000baae8158 06B32 (v02 HPQOEM SLIC-CPC 00000006 INTL 20051117)
[ 0.000000] ACPI: FACS 00000000bab0cf80 00040
[ 0.000000] ACPI: APIC 00000000baaeed88 00062 (v03 HPQOEM SLIC-CPC 01072009 AMI 00010013)
[ 0.000000] ACPI: SSDT 00000000baaeedf0 00098 (v01 HPQOEM SLIC-CPC 00000001 MSFT 03000001)
[ 0.000000] ACPI: MCFG 00000000baaeee88 0003C (v01 HPQOEM SLIC-CPC 01072009 MSFT 00000097)
[ 0.000000] ACPI: SLIC 00000000baaeeec8 00176 (v01 HPQOEM SLIC-CPC 01072009 AMI 00010013)
[ 0.000000] ACPI: HPET 00000000baaef040 00038 (v01 HPQOEM SLIC-CPC 01072009 AMI. 00000004)
[ 0.000000] ACPI: DBGP 00000000baaef078 00034 (v01 HPQOEM SLIC-CPC 01072009 AMI 00010013)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at 0000000000000000-000000013f800000
[ 0.000000] Initmem setup node 0 0000000000000000-000000013f800000
[ 0.000000] NODE_DATA [000000013f7fb000 - 000000013f7fffff]
[ 0.000000] [ffffea0000000000-ffffea00045fffff] PMD -> [ffff88013ae00000-ffff88013e5fffff] on node 0
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] DMA32 0x00001000 -> 0x00100000
[ 0.000000] Normal 0x00100000 -> 0x0013f800
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[9] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000009d
[ 0.000000] 0: 0x00000100 -> 0x00020000
[ 0.000000] 0: 0x00020200 -> 0x00040000
[ 0.000000] 0: 0x00040200 -> 0x000baaa1
[ 0.000000] 0: 0x000bab06 -> 0x000bab08
[ 0.000000] 0: 0x000baba9 -> 0x000bae24
[ 0.000000] 0: 0x000bae2a -> 0x000bae38
[ 0.000000] 0: 0x000baff4 -> 0x000bb000
[ 0.000000] 0: 0x00100000 -> 0x0013f800
[ 0.000000] On node 0 totalpages: 1024197
[ 0.000000] DMA zone: 56 pages used for memmap
[ 0.000000] DMA zone: 141 pages reserved
[ 0.000000] DMA zone: 3784 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 14280 pages used for memmap
[ 0.000000] DMA32 zone: 745840 pages, LIFO batch:31
[ 0.000000] Normal zone: 3556 pages used for memmap
[ 0.000000] Normal zone: 256540 pages, LIFO batch:31
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.000000] nr_irqs_gsi: 40
[ 0.000000] PM: Registered nosave memory: 000000000009d000 - 000000000009e000
[ 0.000000] PM: Registered nosave memory: 000000000009e000 - 00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[ 0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 0000000020000000 - 0000000020200000
[ 0.000000] PM: Registered nosave memory: 0000000040000000 - 0000000040200000
[ 0.000000] PM: Registered nosave memory: 00000000baaa1000 - 00000000baae8000
[ 0.000000] PM: Registered nosave memory: 00000000baae8000 - 00000000baaf0000
[ 0.000000] PM: Registered nosave memory: 00000000baaf0000 - 00000000bab06000
[ 0.000000] PM: Registered nosave memory: 00000000bab08000 - 00000000bab15000
[ 0.000000] PM: Registered nosave memory: 00000000bab15000 - 00000000bab66000
[ 0.000000] PM: Registered nosave memory: 00000000bab66000 - 00000000baba9000
[ 0.000000] PM: Registered nosave memory: 00000000bae24000 - 00000000bae2a000
[ 0.000000] PM: Registered nosave memory: 00000000bae38000 - 00000000baff4000
[ 0.000000] PM: Registered nosave memory: 00000000bb000000 - 00000000bbe00000
[ 0.000000] PM: Registered nosave memory: 00000000bbe00000 - 00000000c0000000
[ 0.000000] PM: Registered nosave memory: 00000000c0000000 - 00000000fed1c000
[ 0.000000] PM: Registered nosave memory: 00000000fed1c000 - 00000000fed20000
[ 0.000000] PM: Registered nosave memory: 00000000fed20000 - 00000000ff000000
[ 0.000000] PM: Registered nosave memory: 00000000ff000000 - 0000000100000000
[ 0.000000] Allocating PCI resources starting at c0000000 (gap: c0000000:3ed1c000)
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:2 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88013f400000 s82944 r8192 d23552 u1048576
[ 0.000000] pcpu-alloc: s82944 r8192 d23552 u1048576 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 1006164
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 root=UUID=ba8bbb89-adbb-4412-b8e3-b0688adacbb5 ro quiet
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] xsave/xrstor: enabled xstate_bv 0x3, cntxt size 0x240
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
[ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[ 0.000000] Memory: 3953840k/5234688k available (3429k kernel code, 1137900k absent, 142948k reserved, 3310k data, 580k init)
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] NR_IRQS:33024 nr_irqs:512 16
[ 0.000000] Extended CMOS year: 2000
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] hpet clockevent registered
[ 0.000000] Fast TSC calibration using PIT
[ 0.004000] Detected 2693.764 MHz processor.
[ 0.000002] Calibrating delay loop (skipped), value calculated using timer frequency.. 5387.52 BogoMIPS (lpj=10775056)
[ 0.000005] pid_max: default: 32768 minimum: 301
[ 0.000035] Security Framework initialized
[ 0.000039] AppArmor: AppArmor disabled by boot time parameter
[ 0.000263] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[ 0.001437] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.001980] Mount-cache hash table entries: 256
[ 0.002068] Initializing cgroup subsys cpuacct
[ 0.002072] Initializing cgroup subsys memory
[ 0.002080] Initializing cgroup subsys devices
[ 0.002082] Initializing cgroup subsys freezer
[ 0.002084] Initializing cgroup subsys net_cls
[ 0.002085] Initializing cgroup subsys blkio
[ 0.002091] Initializing cgroup subsys perf_event
[ 0.002114] CPU: Physical Processor ID: 0
[ 0.002115] CPU: Processor Core ID: 0
[ 0.002120] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[ 0.002120] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
[ 0.002123] mce: CPU supports 7 MCE banks
[ 0.002134] CPU0: Thermal monitoring enabled (TM1)
[ 0.002140] using mwait in idle threads.
[ 0.002548] ACPI: Core revision 20110623
[ 0.005604] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.045274] CPU0: Intel(R) Pentium(R) CPU G630 @ 2.70GHz stepping 07
[ 0.152117] Performance Events: PEBS fmt1+, SandyBridge events, Intel PMU driver.
[ 0.152122] PEBS disabled due to CPU errata.
[ 0.152124] ... version: 3
[ 0.152125] ... bit width: 48
[ 0.152126] ... generic registers: 8
[ 0.152128] ... value mask: 0000ffffffffffff
[ 0.152129] ... max period: 000000007fffffff
[ 0.152130] ... fixed-purpose events: 3
[ 0.152131] ... event mask: 00000007000000ff
[ 0.152245] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.152330] Booting Node 0, Processors #1 Ok.
[ 0.152332] smpboot cpu 1: start_ip = 98000
[ 0.260151] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.260176] Brought up 2 CPUs
[ 0.260178] Total of 2 processors activated (10775.04 BogoMIPS).
[ 0.261551] devtmpfs: initialized
[ 0.263977] PM: Registering ACPI NVS region at baaa1000 (290816 bytes)
[ 0.263988] PM: Registering ACPI NVS region at bab08000 (53248 bytes)
[ 0.263991] PM: Registering ACPI NVS region at bab66000 (274432 bytes)
[ 0.264126] print_constraints: dummy:
[ 0.264169] NET: Registered protocol family 16
[ 0.264242] ACPI: bus type pci registered
[ 0.264295] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.264297] PCI: not using MMCONFIG
[ 0.264299] PCI: Using configuration type 1 for base access
[ 0.264850] bio: create slab <bio-0> at 0
[ 0.264919] ACPI: Added _OSI(Module Device)
[ 0.264921] ACPI: Added _OSI(Processor Device)
[ 0.264922] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.264924] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.265674] ACPI: EC: Look up EC in DSDT
[ 0.266469] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.269474] ACPI: SSDT 00000000bab12a18 00202 (v01 AMI IST 00000001 MSFT 03000001)
[ 0.269687] ACPI: Dynamic OEM Table Load:
[ 0.269689] ACPI: SSDT (null) 00202 (v01 AMI IST 00000001 MSFT 03000001)
[ 0.269712] ACPI: SSDT 00000000bab0ce18 000A2 (v01 AMI CST 00000001 MSFT 03000001)
[ 0.269890] ACPI: Dynamic OEM Table Load:
[ 0.269892] ACPI: SSDT (null) 000A2 (v01 AMI CST 00000001 MSFT 03000001)
[ 0.270125] ACPI: Interpreter enabled
[ 0.270128] ACPI: (supports S0 S1 S3 S4 S5)
[ 0.270147] ACPI: Using IOAPIC for interrupt routing
[ 0.270168] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.270233] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
[ 0.301070] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.304940] ACPI: No dock devices found.
[ 0.304942] HEST: Table not found.
[ 0.304945] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.305167] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.305399] pci_root PNP0A08:00: host bridge window [io 0x0000-0x03af]
[ 0.305401] pci_root PNP0A08:00: host bridge window [io 0x03e0-0x0cf7]
[ 0.305402] pci_root PNP0A08:00: host bridge window [io 0x03b0-0x03df]
[ 0.305404] pci_root PNP0A08:00: host bridge window [io 0x0d00-0xffff]
[ 0.305406] pci_root PNP0A08:00: host bridge window [mem 0x000a0000-0x000bffff]
[ 0.305408] pci_root PNP0A08:00: host bridge window [mem 0x000c0000-0x000dffff]
[ 0.305409] pci_root PNP0A08:00: host bridge window [mem 0xc0000000-0xffffffff]
[ 0.305419] pci 0000:00:00.0: [8086:0100] type 0 class 0x000600
[ 0.305452] pci 0000:00:01.0: [8086:0101] type 1 class 0x000604
[ 0.305479] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[ 0.305497] pci 0000:00:02.0: [8086:0102] type 0 class 0x000300
[ 0.305506] pci 0000:00:02.0: reg 10: [mem 0xfe000000-0xfe3fffff 64bit]
[ 0.305511] pci 0000:00:02.0: reg 18: [mem 0xc0000000-0xcfffffff 64bit pref]
[ 0.305515] pci 0000:00:02.0: reg 20: [io 0xf000-0xf03f]
[ 0.305565] pci 0000:00:16.0: [8086:1c3a] type 0 class 0x000780
[ 0.305587] pci 0000:00:16.0: reg 10: [mem 0xfe508000-0xfe50800f 64bit]
[ 0.305661] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[ 0.305694] pci 0000:00:1a.0: [8086:1c2d] type 0 class 0x000c03
[ 0.305714] pci 0000:00:1a.0: reg 10: [mem 0xfe507000-0xfe5073ff]
[ 0.305802] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
[ 0.305828] pci 0000:00:1b.0: [8086:1c20] type 0 class 0x000403
[ 0.305842] pci 0000:00:1b.0: reg 10: [mem 0xfe500000-0xfe503fff 64bit]
[ 0.305908] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[ 0.305934] pci 0000:00:1c.0: [8086:1c10] type 1 class 0x000604
[ 0.306064] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[ 0.306103] pci 0000:00:1c.1: [8086:1c12] type 1 class 0x000604
[ 0.306232] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
[ 0.306270] pci 0000:00:1c.2: [8086:1c14] type 1 class 0x000604
[ 0.306400] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
[ 0.306439] pci 0000:00:1c.3: [8086:1c16] type 1 class 0x000604
[ 0.306570] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
[ 0.306605] pci 0000:00:1c.4: [8086:1c18] type 1 class 0x000604
[ 0.306681] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
[ 0.306707] pci 0000:00:1c.5: [8086:1c1a] type 1 class 0x000604
[ 0.306783] pci 0000:00:1c.5: PME# supported from D0 D3hot D3cold
[ 0.306813] pci 0000:00:1d.0: [8086:1c26] type 0 class 0x000c03
[ 0.306833] pci 0000:00:1d.0: reg 10: [mem 0xfe506000-0xfe5063ff]
[ 0.306921] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[ 0.306947] pci 0000:00:1f.0: [8086:1c5c] type 0 class 0x000601
[ 0.307069] pci 0000:00:1f.2: [8086:1c02] type 0 class 0x000106
[ 0.307086] pci 0000:00:1f.2: reg 10: [io 0xf0b0-0xf0b7]
[ 0.307094] pci 0000:00:1f.2: reg 14: [io 0xf0a0-0xf0a3]
[ 0.307101] pci 0000:00:1f.2: reg 18: [io 0xf090-0xf097]
[ 0.307109] pci 0000:00:1f.2: reg 1c: [io 0xf080-0xf083]
[ 0.307116] pci 0000:00:1f.2: reg 20: [io 0xf060-0xf07f]
[ 0.307124] pci 0000:00:1f.2: reg 24: [mem 0xfe505000-0xfe5057ff]
[ 0.307166] pci 0000:00:1f.2: PME# supported from D3hot
[ 0.307184] pci 0000:00:1f.3: [8086:1c22] type 0 class 0x000c05
[ 0.307199] pci 0000:00:1f.3: reg 10: [mem 0xfe504000-0xfe5040ff 64bit]
[ 0.307219] pci 0000:00:1f.3: reg 20: [io 0xf040-0xf05f]
[ 0.307263] pci 0000:00:01.0: PCI bridge to [bus 01-01]
[ 0.307335] pci 0000:00:1c.0: PCI bridge to [bus 02-02]
[ 0.307418] pci 0000:00:1c.1: PCI bridge to [bus 03-03]
[ 0.307504] pci 0000:00:1c.2: PCI bridge to [bus 04-04]
[ 0.307587] pci 0000:00:1c.3: PCI bridge to [bus 05-05]
[ 0.307645] pci 0000:00:1c.4: PCI bridge to [bus 06-06]
[ 0.307719] pci 0000:07:00.0: [10ec:8168] type 0 class 0x000200
[ 0.307738] pci 0000:07:00.0: reg 10: [io 0xe000-0xe0ff]
[ 0.307772] pci 0000:07:00.0: reg 18: [mem 0xfe400000-0xfe400fff 64bit]
[ 0.307793] pci 0000:07:00.0: reg 20: [mem 0xd0000000-0xd0003fff 64bit pref]
[ 0.307885] pci 0000:07:00.0: supports D1 D2
[ 0.307886] pci 0000:07:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.312082] pci 0000:00:1c.5: PCI bridge to [bus 07-07]
[ 0.312088] pci 0000:00:1c.5: bridge window [io 0xe000-0xefff]
[ 0.312093] pci 0000:00:1c.5: bridge window [mem 0xfe400000-0xfe4fffff]
[ 0.312103] pci 0000:00:1c.5: bridge window [mem 0xd0000000-0xd00fffff 64bit pref]
[ 0.312155] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 0.312274] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX0._PRT]
[ 0.312304] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX1._PRT]
[ 0.312332] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX2._PRT]
[ 0.312361] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX3._PRT]
[ 0.312389] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX4._PRT]
[ 0.312417] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEX5._PRT]
[ 0.312453] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
[ 0.312562] pci0000:00: Requesting ACPI _OSC control (0x1d)
[ 0.312694] pci0000:00: ACPI _OSC control (0x1d) granted
[ 0.316568] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
[ 0.316616] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 6 7 10 11 12 14 15)
[ 0.316662] ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 10 11 12 14 15)
[ 0.316708] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 *4 5 6 10 11 12 14 15)
[ 0.316753] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0
[ 0.316798] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0
[ 0.316844] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 *10 11 12 14 15)
[ 0.316888] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 *11 12 14 15)
[ 0.316973] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.316980] vgaarb: loaded
[ 0.316981] vgaarb: bridge control possible 0000:00:02.0
[ 0.317013] PCI: Using ACPI for IRQ routing
[ 0.323240] PCI: pci_cache_line_size set to 64 bytes
[ 0.323307] reserve RAM buffer: 000000000009d800 - 000000000009ffff
[ 0.323309] reserve RAM buffer: 00000000baaa1000 - 00000000bbffffff
[ 0.323311] reserve RAM buffer: 00000000bab08000 - 00000000bbffffff
[ 0.323313] reserve RAM buffer: 00000000bae24000 - 00000000bbffffff
[ 0.323315] reserve RAM buffer: 00000000bae38000 - 00000000bbffffff
[ 0.323317] reserve RAM buffer: 00000000bb000000 - 00000000bbffffff
[ 0.323318] reserve RAM buffer: 000000013f800000 - 000000013fffffff
[ 0.323407] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[ 0.323411] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[ 0.326429] Switching to clocksource hpet
[ 0.327834] pnp: PnP ACPI init
[ 0.327845] ACPI: bus type pnp registered
[ 0.327972] pnp 00:00: [bus 00-ff]
[ 0.327974] pnp 00:00: [io 0x0cf8-0x0cff]
[ 0.327975] pnp 00:00: [io 0x0000-0x03af window]
[ 0.327977] pnp 00:00: [io 0x03e0-0x0cf7 window]
[ 0.327979] pnp 00:00: [io 0x03b0-0x03df window]
[ 0.327980] pnp 00:00: [io 0x0d00-0xffff window]
[ 0.327982] pnp 00:00: [mem 0x000a0000-0x000bffff window]
[ 0.327983] pnp 00:00: [mem 0x000c0000-0x000dffff window]
[ 0.327985] pnp 00:00: [mem 0xc0000000-0xffffffff window]
[ 0.327986] pnp 00:00: [mem 0x00000000 window]
[ 0.328023] pnp 00:00: Plug and Play ACPI device, IDs PNP0a08 PNP0a03 (active)
[ 0.328096] pnp 00:01: [mem 0xfed10000-0xfed19fff]
[ 0.328097] pnp 00:01: [mem 0xe0000000-0xefffffff]
[ 0.328099] pnp 00:01: [mem 0xfed90000-0xfed93fff]
[ 0.328100] pnp 00:01: [mem 0xfed20000-0xfed3ffff]
[ 0.328102] pnp 00:01: [mem 0xfee00000-0xfee0ffff]
[ 0.328133] system 00:01: [mem 0xfed10000-0xfed19fff] has been reserved
[ 0.328136] system 00:01: [mem 0xe0000000-0xefffffff] has been reserved
[ 0.328138] system 00:01: [mem 0xfed90000-0xfed93fff] has been reserved
[ 0.328140] system 00:01: [mem 0xfed20000-0xfed3ffff] has been reserved
[ 0.328142] system 00:01: [mem 0xfee00000-0xfee0ffff] has been reserved
[ 0.328144] system 00:01: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.328261] pnp 00:02: [io 0x0000-0xffffffffffffffff disabled]
[ 0.328264] pnp 00:02: [io 0x0a40-0x0a5f]
[ 0.328265] pnp 00:02: [io 0x0a30-0x0a3f]
[ 0.328267] pnp 00:02: [io 0x0000-0xffffffffffffffff disabled]
[ 0.328268] pnp 00:02: [io 0x0000-0xffffffffffffffff disabled]
[ 0.328296] system 00:02: [io 0x0a40-0x0a5f] has been reserved
[ 0.328298] system 00:02: [io 0x0a30-0x0a3f] has been reserved
[ 0.328300] system 00:02: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.328332] pnp 00:03: [dma 4]
[ 0.328334] pnp 00:03: [io 0x0000-0x000f]
[ 0.328335] pnp 00:03: [io 0x0081-0x0083]
[ 0.328337] pnp 00:03: [io 0x0087]
[ 0.328338] pnp 00:03: [io 0x0089-0x008b]
[ 0.328339] pnp 00:03: [io 0x008f]
[ 0.328340] pnp 00:03: [io 0x00c0-0x00df]
[ 0.328358] pnp 00:03: Plug and Play ACPI device, IDs PNP0200 (active)
[ 0.328367] pnp 00:04: [io 0x0070-0x0071]
[ 0.328374] pnp 00:04: [irq 8]
[ 0.328393] pnp 00:04: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 0.328399] pnp 00:05: [io 0x0061]
[ 0.328416] pnp 00:05: Plug and Play ACPI device, IDs PNP0800 (active)
[ 0.328435] pnp 00:06: [io 0x0010-0x001f]
[ 0.328437] pnp 00:06: [io 0x0022-0x003f]
[ 0.328438] pnp 00:06: [io 0x0044-0x005f]
[ 0.328439] pnp 00:06: [io 0x0062-0x0063]
[ 0.328441] pnp 00:06: [io 0x0065-0x006f]
[ 0.328442] pnp 00:06: [io 0x0072-0x007f]
[ 0.328443] pnp 00:06: [io 0x0080]
[ 0.328444] pnp 00:06: [io 0x0084-0x0086]
[ 0.328446] pnp 00:06: [io 0x0088]
[ 0.328447] pnp 00:06: [io 0x008c-0x008e]
[ 0.328448] pnp 00:06: [io 0x0090-0x009f]
[ 0.328450] pnp 00:06: [io 0x00a2-0x00bf]
[ 0.328451] pnp 00:06: [io 0x00e0-0x00ef]
[ 0.328452] pnp 00:06: [io 0x04d0-0x04d1]
[ 0.328483] system 00:06: [io 0x04d0-0x04d1] has been reserved
[ 0.328485] system 00:06: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.328492] pnp 00:07: [io 0x00f0-0x00ff]
[ 0.328497] pnp 00:07: [irq 13]
[ 0.328514] pnp 00:07: Plug and Play ACPI device, IDs PNP0c04 (active)
[ 0.328656] pnp 00:08: [io 0x0400-0x0453]
[ 0.328658] pnp 00:08: [io 0x0458-0x047f]
[ 0.328660] pnp 00:08: [io 0x1180-0x119f]
[ 0.328661] pnp 00:08: [io 0x0500-0x057f]
[ 0.328663] pnp 00:08: [mem 0xfed1c000-0xfed1ffff]
[ 0.328664] pnp 00:08: [mem 0xfec00000-0xfecfffff]
[ 0.328665] pnp 00:08: [mem 0xfed08000-0xfed08fff]
[ 0.328667] pnp 00:08: [mem 0xff000000-0xffffffff]
[ 0.328696] system 00:08: [io 0x0400-0x0453] has been reserved
[ 0.328698] system 00:08: [io 0x0458-0x047f] has been reserved
[ 0.328700] system 00:08: [io 0x1180-0x119f] has been reserved
[ 0.328702] system 00:08: [io 0x0500-0x057f] has been reserved
[ 0.328704] system 00:08: [mem 0xfed1c000-0xfed1ffff] has been reserved
[ 0.328706] system 00:08: [mem 0xfec00000-0xfecfffff] could not be reserved
[ 0.328708] system 00:08: [mem 0xfed08000-0xfed08fff] has been reserved
[ 0.328710] system 00:08: [mem 0xff000000-0xffffffff] has been reserved
[ 0.328712] system 00:08: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.328744] pnp 00:09: [io 0x0454-0x0457]
[ 0.328772] system 00:09: [io 0x0454-0x0457] has been reserved
[ 0.328774] system 00:09: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
See following post for continuation.
Attached Thumbnails
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Name:	2014.07.08.Tuesday_ScreenshotFromSearchInSynapticFor_ifconfig.png
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Size:	235.1 KB
ID:	15871  
 
Old 07-08-2014, 07:57 PM   #4
theAdmiral
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OP Reply #1 (continued)

Continued.

Please see first TXT file attachment below. Forum was pushing me back due to misinterpreted tags.

I couldn't see any errors, but then again, I am not an expert--I'm more like an advanced novice/lower-intermediate. Maybe there is some error(s) that you can see that I couldn't pick up.

At any rate, my system has been up continuously for two days now, and I haven't experienced a network drop since I rebooted. This is a good sign. Although, I don't know why ifconfig is not available. I tried to see if I can install it from Synaptic, but you see from the attachment on immediately previous post that it is not available, and I know that I have all the necessary sources in sources.list. (Please see second attachment to this post).

Would you be able to help me make ifconfig available/installed on my machine? I tried to apt-get/install it, but it could not find ifconfig.

BTW, both PNG attachments are on Part 1 of this reply.

Thanks in advance for your help.
Attached Files
File Type: txt 2014.07.08_SecondHalfOf_DMESG_Output.txt (24.3 KB, 20 views)
File Type: txt 2014.07.08_Sources.list.txt (746 Bytes, 17 views)
 
Old 07-09-2014, 09:02 AM   #5
theAdmiral
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It turns out ifconfig is installed, it is just not in my PATH. I will fix that later, and continue troubleshooting with results of ifconfig later on today. (The system dropped my network connection again earlier this morning).
 
Old 07-09-2014, 09:20 AM   #6
kentyler
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If you don't have it in the path you can call it with the path, like:

/sbin/ifconfig

How long has the machine been up? If you give the output of dmesg after it's dropped it may indicate what the drop is caused by. Also you could issue a sudo command to show the last 20 lines from the logfile. It's important to let the issue occur at least once before doing this.

sudo tail -n 20 /var/log/syslog
 
Old 07-09-2014, 10:15 AM   #7
McSinyx
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Thumbs down

Quote:
Originally Posted by kentyler View Post
What's the output of ifconfig?
ifconfig must be run as root, in most distros.
 
Old 07-09-2014, 03:34 PM   #8
theAdmiral
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Quote:
Originally Posted by kentyler View Post
What's the output of ifconfig? All fields except TX, RX, and txquelen should be 0.

To me it sounds like something is wrong with the switch or router you are connected to.
?
Alright, back to this question that I have yet to answer, but is probably pertinent to our troubleshooting efforts.

Quote:
john@debian:~$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:XXX.XXX.XXX.XXX Bcast:XXX.XXX.XXX.XXX Mask:XXX.XXX.XXX.XXX
inet6 addr: XXXX::XXX:XXXX:XXXX:XXXXXXX Scope:XXXXXXXXX
UP BROADCAST RUNNING MULTICAST MTU:XXXX Metric:1
RX packets:41013 errors:0 dropped:0 overruns:0 frame:0
TX packets:31008 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:28639813 (27.3 MiB) TX bytes:6708659 (6.3 MiB)
Interrupt:XX Base address:XXXXXX
So, that corresponds appropriately with your earlier statement that:

Quote:
What's the output of ifconfig? All fields except TX, RX, and txquelen should be 0.
 
Old 07-09-2014, 03:39 PM   #9
theAdmiral
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...

Quote:
Originally Posted by kentyler View Post
How long has the machine been up?
Quote:
john@debian:~$ uptime
13:37:15 up 8:57, 2 users, load average: 0.08, 0.13, 0.20
john@debian:~$
 
Old 07-09-2014, 03:43 PM   #10
kentyler
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It does not look like the Linux machine is dropping the network connection. I suspect that the device that provides the Linux machine the network is causing the drops.

The dmesg command would show link drops:

ADDRCONF(NETDEV_UP): eth0: link is not ready
e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready

You would possibly have errors or frame drops. None of these are present so I'd check the cable wire is tight on the router with a wrench.

Had this happen years ago, the cable tech took out a 7/16 out and tightened the F fitting to solve the issue.
 
Old 07-09-2014, 03:45 PM   #11
theAdmiral
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...
Quote:
Originally Posted by kentyler View Post
If you give the output of dmesg after it's dropped it may indicate what the drop is caused by. Also you could issue a sudo command to show the last 20 lines from the logfile. It's important to let the issue occur at least once before doing this.

sudo tail -n 20 /var/log/syslog
Alright, got to this step so far. I will just give my system time, and when/if the connection drops, I will carry out your instructions for dmesg, and tail of syslog. In the meantime, I will fish around to get ifconfig in my path, in the order I prefer for it to be in.

Thank you in advance for your help.
 
Old 07-09-2014, 03:49 PM   #12
theAdmiral
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Quote:
Originally Posted by kentyler View Post
It does not look like the Linux machine is dropping the network connection. I suspect that the device that provides the Linux machine the network is causing the drops.

...

You would possibly have errors or frame drops. None of these are present so I'd check the cable wire is tight on the router with a wrench.

Had this happen years ago, the cable tech took out a 7/16 out and tightened the F fitting to solve the issue.
Will do. Will tighten fitting and give it time--max until Monday morning. If you haven't heard from me by then, will close thread as [SOLVED].

Thank you.
 
Old 07-12-2014, 08:25 AM   #13
theAdmiral
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As suggested, I am attaching in a file the last several lines of my syslog, from a network disconnection this morning. You asked for 20, but I am giving 100, for good measure. Would you please see attached file, review it, and let me know what you think?

Thank you.
Attached Files
File Type: txt 2014.07.12_SyslogOutputOfNetworkError.txt (11.6 KB, 23 views)
 
Old 07-13-2014, 03:24 AM   #14
trieudoahong
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Is the cable too long or it has not been follow EIA/TIA 568A & 568B Standard? Non standard or bad cable can cause a lot of trouble.
Realtek LAN chipset is cheap one make for desktop so I assume this using a Desktop motherboard. Defected LAN chipset also can cause this issue. For server purpose, Intel or Broadcom provide chipset with higher performance, feature rich and stability.
What message has been written to /var/log/messages at the time you lost your connection (like kentyler's suggestion)?
 
Old 07-13-2014, 10:46 AM   #15
theAdmiral
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I have used the same cable, the same modem, and the same everything (except for software updates) for at least two years now, and have had no trouble up until just recently. Why would non-standard cable all of a sudden conflict with my attempts at keeping a stable network connection? But, assuming your question is appropriate, how would I determine if it is standard?
 
  


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