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

[Nikola Ciprich <extmaillist@linuxbox.cz>]

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?
> > > 
> > > Thanks,
> > > Emil
> > > --
> > > To unsubscribe from this list: send the line "unsubscribe linux-net" in
> > > the body of a message to majordomo@vger.kernel.org
> > > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > > 
> > 
> > -- 
> > -------------------------------------
> > Ing. Nikola CIPRICH
> > LinuxBox.cz, s.r.o.
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> 
> -- 
> -------------------------------------
> Ing. Nikola CIPRICH
> LinuxBox.cz, s.r.o.
> 28. rijna 168, 709 01 Ostrava
> 
> tel.:   +420 596 603 142
> fax:    +420 596 621 273
> mobil:  +420 777 093 799
> www.linuxbox.cz
> 
> mobil servis: +420 737 238 656
> email servis: servis@linuxbox.cz
> -------------------------------------
> 
> ------------------------------------------------------------------------------
> Nokia and AT&T present the 2010 Calling All Innovators-North America contest
> Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store 
> http://p.sf.net/sfu/nokia-dev2dev
> _______________________________________________
> E1000-devel mailing list
> E1000-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/e1000-devel
> To learn more about Intel&#174; Ethernet, visit http://communities.intel.com/community/wired
> 

-- 
-------------------------------------
Ing. Nikola CIPRICH
LinuxBox.cz, s.r.o.
28. rijna 168, 709 01 Ostrava

tel.:   +420 596 603 142
fax:    +420 596 621 273
mobil:  +420 777 093 799

www.linuxbox.cz

mobil servis: +420 737 238 656
email servis: servis@linuxbox.cz
-------------------------------------