Created attachment 59712 [details] backtrace image Using a bridge interface with - eth0 from a Tigeon3 card (Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet [14e4:1648] (rev 10)) - 3 veth interfaces from LXC results in a kernel oops on 2.6.39. Up and until 2.6.38.7 I did not run into the issue. Unfortunately I'm only able to provide a screenshot or a part of the backtrace as I don't have a proper serial console available.
(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). 2.6.38->2.6.39 regression, appears to be bridge-related. There's a partial screencap of the oops linked below. Bernd, it would be helpful if you could set the screen to more rows (50?) and then retake that photo. Documentation/svga.txt might help out. Thanks. On Fri, 27 May 2011 15:28:17 GMT bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=35992 > > Summary: Regression: oops when using a bridge interface with > tg3 > Product: Drivers > Version: 2.5 > Kernel Version: 2.6.39 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Network > AssignedTo: drivers_network@kernel-bugs.osdl.org > ReportedBy: bzed@debian.org > Regression: Yes > > > Created an attachment (id=59712) > --> (https://bugzilla.kernel.org/attachment.cgi?id=59712) > backtrace image > > Using a bridge interface with > - eth0 from a Tigeon3 card (Broadcom Corporation NetXtreme BCM5704 Gigabit > Ethernet [14e4:1648] (rev 10)) > - 3 veth interfaces from LXC > results in a kernel oops on 2.6.39. Up and until 2.6.38.7 I did not run into > the issue. > > Unfortunately I'm only able to provide a screenshot or a part of the > backtrace > as I don't have a proper serial console available. > > -- > Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are on the CC list for the bug.
Created attachment 59732 [details] full backtrace image
On 05/28/2011 12:21 AM, Andrew Morton wrote: > 2.6.38->2.6.39 regression, appears to be bridge-related. There's a > partial screencap of the oops linked below. The oops happens as soon as I add the lxc veth interface to the bridge, before everything works as expected. A new, full screenshot is attached https://bugzilla.kernel.org/attachment.cgi?id=59732 (For yet unknows reasons I can't access the serial port redirection via ssh and I won't be able to attach a real serial port cable before Monday, so I'm afraid you have to work with the screenshot for now.) > Bernd, it would be helpful if you could set the screen to more rows > (50?) and then retake that photo. Documentation/svga.txt might help > out. Thanks. (the kernel says that vga=... is deprecated, guess that documentation is outdated?) Thanks and cheers, Bernd
Le samedi 28 mai 2011 à 10:58 +0200, Bernd Zeimetz a écrit : > On 05/28/2011 12:21 AM, Andrew Morton wrote: > > 2.6.38->2.6.39 regression, appears to be bridge-related. There's a > > partial screencap of the oops linked below. > > The oops happens as soon as I add the lxc veth interface to the bridge, > before > everything works as expected. > > > A new, full screenshot is attached > https://bugzilla.kernel.org/attachment.cgi?id=59732 > > > (For yet unknows reasons I can't access the serial port redirection via ssh > and > I won't be able to attach a real serial port cable before Monday, so I'm > afraid > you have to work with the screenshot for now.) > > > > Bernd, it would be helpful if you could set the screen to more rows > > (50?) and then retake that photo. Documentation/svga.txt might help > > out. Thanks. > > (the kernel says that vga=... is deprecated, guess that documentation is > outdated?) > OK, this sounds like an already fixed bug. (commit : 33eb9873a283a bridge: initialize fake_rtable metrics) Could you try latest linux-2.6 tree ? By the way, if panic stills happen, could you try netconsole ? Here I just add "netconsole=4444@192.168.20.108/eth1,4444@192.168.20.112/00:1e:0b:ec:c3:e4" to my boot param 192.168.20.108 is my ip addr, 192.168.20.112 the ip addr of "remote machine", 00:1e:0b:ec:c3:e4 the mac addr of "remote machine" On "remote machine" I start : netcat -l -u -p 4444 </dev/null Thanks
Hi, > OK, this sounds like an already fixed bug. > > (commit : 33eb9873a283a bridge: initialize fake_rtable metrics) > > Could you try latest linux-2.6 tree ? I've picked the commit into 2.6.39 and it fixed the issue, thanks for the pointer. Could we please get that included in 2.6.39.1? Thanks, Bernd
Le samedi 28 mai 2011 à 13:35 +0200, Bernd Zeimetz a écrit : > Hi, > > > OK, this sounds like an already fixed bug. > > > > (commit : 33eb9873a283a bridge: initialize fake_rtable metrics) > > > > Could you try latest linux-2.6 tree ? > > I've picked the commit into 2.6.39 and it fixed the issue, thanks for the > pointer. > > > Could we please get that included in 2.6.39.1? > It will, David and Greg took care of this, thanks.