I've got the same issues with Intel Ethernet Pro 100 on 2.6.26-2 in lenny/squeeze
May 12 20:23:20 eva kernel: [450226.140056] Clocksource tsc unstable (delta = 4686427513 ns)
May 12 20:23:23 eva kernel: [450235.000021] NETDEV WATCHDOG: eth0: transmit timed out
May 12 20:23:23 eva kernel: [450235.000054] ------------[ cut here ]------------
May 12 20:23:23 eva kernel: [450235.000059] WARNING: at net/sched/sch_generic.c:222 dev_watchdog+0x8f/0xdc()
May 12 20:23:23 eva kernel: [450235.000064] Modules linked in: ppdev lp tun ip6table_mangle nf_conntrack_ipv6 ip6t_LOG ip6table_filter ip6_tables xt_MARK iptable_mangle ipt_MASQUERADE ipt_REDIRECT iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack xt_tcpudp xt_limit iptable_filter ip_tables x_tables nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc ipv6 xfs w83627hf hwmon_vid loop snd_via82xx gameport snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_mpu401_uart snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event parport_pc parport snd_seq snd_timer snd_seq_device i2c_viapro snd i2c_core psmouse pcspkr soundcore via_ircc serio_raw irda crc_ccitt usblp shpchp pci_hotplug button via_agp agpgart evdev sd_mod ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid0 md_mod ide_disk ide_pci_generic ata_generic libata dock usb_storage scsi_mod uhci_hcd floppy via82cxxx ide_core ehci_hcd usbcore e100 via_rhine 8139cp 8139too mii thermal processor fan thermal_sys
May 12 20:23:23 eva kernel:
May 12 20:23:23 eva kernel: [450235.000202] Pid: 0, comm: swapper Not tainted 2.6.26-2-686 #1
May 12 20:23:23 eva kernel: [450235.000219] [<c01225bb>] warn_on_slowpath+0x40/0x66
May 12 20:23:23 eva kernel: [450235.000248] [<c0119132>] hrtick_start_fair+0xeb/0x12c
May 12 20:23:23 eva kernel: [450235.000269] [<c01188fe>] enqueue_task+0x52/0x5d
May 12 20:23:23 eva kernel: [450235.000281] [<c0118924>] activate_task+0x1b/0x26
May 12 20:23:23 eva kernel: [450235.000291] [<c011b6c5>] try_to_wake_up+0xe8/0xf1
May 12 20:23:23 eva kernel: [450235.000308] [<c0131949>] autoremove_wake_function+0xd/0x2d
May 12 20:23:23 eva kernel: [450235.000324] [<c01184a9>] __wake_up_common+0x2e/0x58
May 12 20:23:23 eva kernel: [450235.000341] [<c011a68d>] __wake_up+0x29/0x39
May 12 20:23:23 eva kernel: [450235.000357] [<c012f0b7>] insert_work+0x58/0x5c
May 12 20:23:23 eva kernel: [450235.000368] [<c012f3a5>] __queue_work+0x1c/0x28
May 12 20:23:23 eva kernel: [450235.000378] [<c012f400>] queue_work+0x33/0x3c
May 12 20:23:23 eva kernel: [450235.000388] [<c0266c0d>] dev_watchdog+0x8f/0xdc
May 12 20:23:23 eva kernel: [450235.000398] [<c01296b3>] run_timer_softirq+0x11a/0x17c
May 12 20:23:23 eva kernel: [450235.000408] [<c0266b7e>] dev_watchdog+0x0/0xdc
May 12 20:23:23 eva kernel: [450235.000426] [<c01265cd>] __do_softirq+0x66/0xd3
May 12 20:23:23 eva kernel: [450235.000438] [<c012667f>] do_softirq+0x45/0x53
May 12 20:23:23 eva kernel: [450235.000445] [<c0126936>] irq_exit+0x35/0x67
May 12 20:23:23 eva kernel: [450235.000451] [<c01101c9>] smp_apic_timer_interrupt+0x6b/0x76
May 12 20:23:23 eva kernel: [450235.000458] [<c0102656>] default_idle+0x0/0x53
May 12 20:23:23 eva kernel: [450235.000468] [<c0104364>] apic_timer_interrupt+0x28/0x30
May 12 20:23:23 eva kernel: [450235.000476] [<c0102656>] default_idle+0x0/0x53
May 12 20:23:23 eva kernel: [450235.000495] [<c0114d68>] native_safe_halt+0x2/0x3
May 12 20:23:23 eva kernel: [450235.000509] [<c0102683>] default_idle+0x2d/0x53
May 12 20:23:23 eva kernel: [450235.000515] [<c01025ce>] cpu_idle+0xab/0xcb
May 12 20:23:23 eva kernel: [450235.000529] =======================
May 12 20:23:23 eva kernel: [450235.000534] ---[ end trace d0ebdf151008bb04 ]---
$ uname -a
Linux eva 2.6.26-2-686 #1 SMP Thu Mar 26 01:08:11 UTC 2009 i686 GNU/Linux
Ethernet controllers I have:
00:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at ec00 [size=256]
Region 1: Memory at dfffff00 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: 8139too
00:07.0 Ethernet controller: VIA Technologies, Inc. VT6105/VT6106S [Rhine-III] (rev 8b)
Subsystem: D-Link System Inc Device 1405
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (750ns min, 2000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at e800 [size=256]
Region 1: Memory at dffffe00 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: via-rhine
00:0a.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 05)
Subsystem: IBM 82558B Ethernet Pro 10/100
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at dd9ff000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at e400 [size=32]
Region 2: Memory at dfe00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at dfd00000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: e100
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