I'm having the same problem on a gigabyte board with built-in realtek nic. I've found numerous bugs for the same issue, not sure which is the main one and if ubuntu team is checking for duplicates.
I have created a script on another machine that emails me when the link is down. I then crosschecked against all my logs and could not find anything related to the network going down.
This problem seems to be happening since 2.26.24 on r8169 (as per bugs I found).
My machine has two cards (second is a different brand), only the Realtek stops working.
I'm having the same problem on a gigabyte board with built-in realtek nic. I've found numerous bugs for the same issue, not sure which is the main one and if ubuntu team is checking for duplicates.
I have created a script on another machine that emails me when the link is down. I then crosschecked against all my logs and could not find anything related to the network going down.
This problem seems to be happening since 2.26.24 on r8169 (as per bugs I found).
My machine has two cards (second is a different brand), only the Realtek stops working.
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OS: Ubuntu Intrepid AMD64
Problem:
Card stops working for a period of time (usually 5-15 minutes)
Bugs I found: 76489, 212497, 256331, 286489, 293661, 205374
=>lspci -vvv | less
Capabilities: <access denied>
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
Subsystem: Giga-byte Technology Device e000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 2300
Region 0: I/O ports at c000 [size=256]
Region 2: Memory at f6000000 (64-bit, non-prefetchable) [size=4K]
[virtual] Expansion ROM at fa100000 [disabled] [size=128K]
Kernel driver in use: r8169
Kernel modules: r8169
=>cat /proc/version_ signature
Ubuntu 2.6.27-7.16-server
=>ifconfig
RX bytes:10506838810 (10.5 GB) TX bytes:1987163061 (1.9 GB)
=>dmesg buildd/ linux-2. 6.27/net/ sched/sch_ generic. c:219 dev_watchdog+ 0x272/0x280( ) 91c>] warn_slowpath+ 0xbc/0xf0 3ba>] ? __next_ cpu+0x1a/ 0x30 35c>] ? find_busiest_ group+0x1dc/ 0x970 d26>] ? read_tsc+0x16/0x40 f44>] ? timer_stats_ update_ stats+0x24/ 0x370 491>] ? getnstimeofday+ 0x51/0xd0 5fa>] ? strlcpy+0x4a/0x60 e69>] ? set_normalized_ timespec+ 0x9/0x90 452>] dev_watchdog+ 0x272/0x280 e9c>] ? sched_clock_ cpu+0xcc/ 0x160 d26>] ? read_tsc+0x16/0x40 1e0>] ? dev_watchdog+ 0x0/0x280 f79>] run_timer_ softirq+ 0x179/0x260 704>] ? clockevents_ program_ event+0x54/ 0xa0 d1c>] __do_softirq+ 0x8c/0x100 17c>] call_softirq+ 0x1c/0x30 875>] do_softirq+ 0x65/0xa0 a85>] irq_exit+0x95/0xa0 909>] smp_apic_ timer_interrupt +0x89/0xc0 983>] apic_timer_ interrupt+ 0x83/0x90 b82>] ? mwait_idle+ 0x52/0x60 b39>] ? mwait_idle+0x9/0x60 e95>] ? cpu_idle+0x75/0x110 205>] ? start_secondary +0x97/0xc2
[169782.011271] ------------[ cut here ]------------
[169782.011278] WARNING: at /build/
[169782.011281] NETDEV WATCHDOG: eth0 (r8169): transmit timed out
[169782.011283] Modules linked in: vmnet vmci vmmon ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp bridge stp kvm ppdev ipv6 iptable_filter ip_tables x_tables ac lp loop snd_hda_intel parport_pc snd_pcm snd_timer pcspkr snd evdev shpchp iTCO_wdt parport intel_agp button soundcore iTCO_vendor_support pci_hotplug snd_page_alloc ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif pata_jmicron sg ata_piix pata_acpi pata_it821x via_rhine mii libata r8169 scsi_mod dock ehci_hcd uhci_hcd usbcore raid10 raid456 async_xor async_memcpy async_tx xor raid1 raid0 multipath linear md_mod dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse [last unloaded: vmnet]
[169782.011353] Pid: 0, comm: swapper Not tainted 2.6.27-7-server #1
[169782.011355]
[169782.011356] Call Trace:
[169782.011358] <IRQ> [<ffffffff8024e
[169782.011366] [<ffffffff803a2
[169782.011371] [<ffffffff80245
[169782.011375] [<ffffffff80219
[169782.011380] [<ffffffff80273
[169782.011383] [<ffffffff8026e
[169782.011387] [<ffffffff803a8
[169782.011390] [<ffffffff80253
[169782.011393] [<ffffffff8047b
[169782.011396] [<ffffffff8026c
[169782.011399] [<ffffffff80219
[169782.011402] [<ffffffff8047b
[169782.011406] [<ffffffff80259
[169782.011409] [<ffffffff80271
[169782.011413] [<ffffffff80254
[169782.011417] [<ffffffff80214
[169782.011420] [<ffffffff80215
[169782.011427] [<ffffffff80254
[169782.011430] [<ffffffff80226
[169782.011432] [<ffffffff80213
[169782.011433] <EOI> [<ffffffff8021a
[169782.011437] [<ffffffff8021a
[169782.011440] [<ffffffff80210
[169782.011442] [<ffffffff804fd
[169782.011444]
[169782.011445] ---[ end trace aa5cac95cf032c52 ]---