I just retried this today (after noting a new tag upstream, I was thinking I have not seen this in a while) and was unable to reproduce the problem using the suspend feature. I note that I now have a 3.2 kernel and see some info on jumbo frames in my dmesg. No other notable changes jump out at me in the outputs below.
imac@repo:~$ dmesg | grep r8169
[ 2.146842] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 2.146873] r8169 0000:0a:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 2.146948] r8169 0000:0a:00.0: setting latency timer to 64
[ 2.147003] r8169 0000:0a:00.0: irq 45 for MSI/MSI-X
[ 2.147546] r8169 0000:0a:00.0: eth0: RTL8168c/8111c at 0xffffc9000278a000, 00:1e:ec:f2:0f:f3, XID 1c4000c0 IRQ 45
[ 2.147550] r8169 0000:0a:00.0: eth0: jumbo features [frames: 6128 bytes, tx checksumming: ko]
[ 40.985137] r8169 0000:0a:00.0: eth0: link down
[ 40.985147] r8169 0000:0a:00.0: eth0: link down
[ 43.084541] r8169 0000:0a:00.0: eth0: link up
imac@repo:~$ uname -a
Linux repo.ianbmacdonald.com 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
I just retried this today (after noting a new tag upstream, I was thinking I have not seen this in a while) and was unable to reproduce the problem using the suspend feature. I note that I now have a 3.2 kernel and see some info on jumbo frames in my dmesg. No other notable changes jump out at me in the outputs below.
imac@repo:~$ dmesg | grep r8169
[ 2.146842] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 2.146873] r8169 0000:0a:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 2.146948] r8169 0000:0a:00.0: setting latency timer to 64
[ 2.147003] r8169 0000:0a:00.0: irq 45 for MSI/MSI-X
[ 2.147546] r8169 0000:0a:00.0: eth0: RTL8168c/8111c at 0xffffc9000278a000, 00:1e:ec:f2:0f:f3, XID 1c4000c0 IRQ 45
[ 2.147550] r8169 0000:0a:00.0: eth0: jumbo features [frames: 6128 bytes, tx checksumming: ko]
[ 40.985137] r8169 0000:0a:00.0: eth0: link down
[ 40.985147] r8169 0000:0a:00.0: eth0: link down
[ 43.084541] r8169 0000:0a:00.0: eth0: link up
imac@repo:~$ uname -a ald.com 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Linux repo.ianbmacdon
imac@repo:~$ sudo lspci -vvv -d 10ec:8168 ,D1+,D2+ ,D3hot+ ,D3cold+ ) 00-00-00- 00-00
[sudo] password for imac:
0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
Subsystem: Hewlett-Packard Company Device 30fc
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: 64 bytes
Interrupt: pin A routed to IRQ 45
Region 0: I/O ports at 2000 [size=256]
Region 2: Memory at d1010000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at d1000000 (64-bit, prefetchable) [size=64K]
Expansion ROM at d1020000 [disabled] [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000fee0300c Data: 4191
Capabilities: [70] Express (v1) Endpoint, MSI 01
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <8us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 4096 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [b0] MSI-X: Enable- Count=2 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [d0] Vital Product Data
Unknown small resource type 00, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-00-
Kernel driver in use: r8169
Kernel modules: r8169
imac@repo:~$