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SubjectRe: [E1000-devel] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
Hello!

I seem to have same problem but with r8169 device:

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Subsystem: ASUSTeK Computer Inc. Device 83a3
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 40
Region 0: I/O ports at e800 [size=256]
Region 2: Memory at f8fff000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at f8ff8000 (64-bit, prefetchable) [size=16K]
Expansion ROM at febf0000 [disabled] [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable+
Address: 00000000fee0100c Data: 4161
Capabilities: [70] Express (v2) Endpoint, MSI 01
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
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+ Suprise- 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: [ac] MSI-X: Enable- Mask- TabSize=4
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [cc] Vital Product Data <?>
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [140] Virtual Channel <?>
Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: r8169
Kernel modules: r8169
When I tried to boot, computer freezes at vlan_hwaccel_do_receive
(gpf), with computer completely frozen and not responding to sysrq.
With quick search I found this thread and figured problem must be in
shared hardware vlan acceleration code. So I disabled vlan hwaccel in
r8169 driver (CONFIG_R8169_VLAN=n) and got computer booting ok.

Network is set up with two VLANs and two bridges:
bridge name bridge id STP enabled interfaces
br0 8000.xxxxxxxxxxxx no dummy0
dummy2
dummy4
dummy6
eth0.0000
wanbr0 8000.yyyyyyyyyyyy no dummy1
dummy3
eth0.0009
-Jussi

Quoting "Brandeburg, Jesse" <jesse.brandeburg@intel.com>:

>
> Adding netdev... beware the top post ordering in the thread.
>
> On Thu, 21 Oct 2010, Nikola Ciprich wrote:
>
>> Ok, here're the steps to reproduce the problem:
>>
>> ip link set up dev eth0
>> vconfig add eth0 10
>> ip link set up dev eth0.10
>> brctl addbr brtest
>> # to bylo ok, sundá to až:
>> brctl add brtest eth0.10
>>
>> last command causes panic in few seconds..
>>
>> Interesting thing is that it're reproducible only for eth0, not for
>> eth1 (both are onboard 80003ES2LAN)
>>
>> here's the lspci for those:
>> 06:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
>> Ethernet Controller (Copper) (rev 01)
>> Subsystem: Super Micro Computer Inc Unknown device 0000
>> Flags: bus master, fast devsel, latency 0, IRQ 65
>> Memory at d8300000 (32-bit, non-prefetchable) [size=128K]
>> I/O ports at 3000 [size=32]
>> Capabilities: [c8] Power Management version 2
>> Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
>> Capabilities: [e0] Express Endpoint IRQ 0
>> Capabilities: [100] Advanced Error Reporting
>> Capabilities: [140] Device Serial Number 5a-19-34-ff-ff-48-30-00
>>
>> 06:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
>> Ethernet Controller (Copper) (rev 01)
>> Subsystem: Super Micro Computer Inc Unknown device 0000
>> Flags: bus master, fast devsel, latency 0, IRQ 66
>> Memory at d8320000 (32-bit, non-prefetchable) [size=128K]
>> I/O ports at 3020 [size=32]
>> Capabilities: [c8] Power Management version 2
>> Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
>> Capabilities: [e0] Express Endpoint IRQ 0
>> Capabilities: [100] Advanced Error Reporting
>> Capabilities: [140] Device Serial Number 5a-19-34-ff-ff-48-30-00
>>
>> last but not least, I've done bisect and it leads to:
>> commit ae878ae280bea286ff2b1e1cb6e609dd8cb4501d
>> Author: Maciej Żenczykowski <maze@google.com>
>> Date: Sun Oct 3 14:49:00 2010 -0700
>>
>>
>> net: Fix IPv6 PMTU disc. w/
>> asymmetric routes
>>
>> doesn't seem to me to be related at all, but reverting really seems
>> to fix the problem for me..
>> I hope it helps..
>> with best regards
>> nik
>>
>>
>>
>> On Wed, Oct 20, 2010 at 06:36:59PM +0200, Nikola Ciprich wrote:
>> > so unfortunately I have to take back what I just wrote :(
>> > the problem still persists, it just seems to be more random
>> > so I'll try to separate the exact command that causes the panic..
>> > n.
>> >
>> > On Wed, Oct 20, 2010 at 04:46:40PM +0200, Nikola Ciprich wrote:
>> > > Hello Emil,
>> > >
>> > > I tried it now, I can still 100% reproduce with 2.6.36-rc7-git2, but
>> > > with 2.6.36-rc8-git5 it works OK. So it certainly got fixed in
>> the meantime!
>> > > I'll therefore close the bug in BZ.
>> > >
>> > > have a nice day!
>> > >
>> > > best regards
>> > >
>> > > nik
>> > >
>> > >
>> > > On Fri, Oct 15, 2010 at 10:58:15AM -0600, Tantilov, Emil S wrote:
>> > > > >-----Original Message-----
>> > > > >From: Nikola Ciprich [mailto:extmaillist@linuxbox.cz]
>> > > > >Sent: Wednesday, October 13, 2010 10:23 PM
>> > > > >To: Linux kernel list; linux-net maillist; e1000-devel list
>> > > > >Cc: nikola.ciprich@linuxbox.cz
>> > > > >Subject: [E1000-devel] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
>> > > > >
>> > > > >Hi,
>> > > > >when I try to boot 2.6.36-rc7-git2 on one of my machines, it
>> crashes while
>> > > > >setting up the network.
>> > > >
>> > > > Thanks for letting us know!
>> > > >
>> > > > >The setup is quite complex, with bonding, lots of vlans and 3 intel
>> > > > >adapters (system is quad x86_64)
>> > > >
>> > > > Could you provide more details about the exact setup and the
>> sequence of
>> > > > commands that lead to the crash? If you can narrow it down to
>> the actual
>> > > > command that caused the crash that would be very helpful.
>> > > >
>> > > > Also - are you testing from Linus or net-next tree? If you
>> are not using
>> > > > net-next, could you give it a try and see if you can
>> reproduce it there?
>> > > >
>> > > > >
>> > > > >snip of lspci:
>> > > > >06:00.0 Ethernet controller: Intel Corporation 80003ES2LAN
>> Gigabit Ethernet
>> > > > >Controller (Copper) (rev 01)
>> > > > >06:00.1 Ethernet controller: Intel Corporation 80003ES2LAN
>> Gigabit Ethernet
>> > > > >Controller (Copper) (rev 01)
>> > > > >09:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
>> > > > >Connection
>> > > >
>> > > > Could you provide the output of lspci -vvv and a kernel config?
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