Re: [E1000-devel] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?

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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, sundà to aÅ:
> 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 Åenczykowski <maze@xxxxxxxxxx>
> 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@xxxxxxxxxxx]
> > > > >Sent: Wednesday, October 13, 2010 10:23 PM
> > > > >To: Linux kernel list; linux-net maillist; e1000-devel list
> > > > >Cc: nikola.ciprich@xxxxxxxxxxx
> > > > >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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