debasis das
2010-Aug-30 10:59 UTC
[Bridge] help needed regarding crash while adding interface to a bridge using brctl utility
Hi,
I am getting a crash while adding an interface to a bridge using the
"brctl" utility.
The crash dump is as below:
#vconfig add eth0 5
#brctl addbr br0
#brctl addif br0 eth0.5
Oops: sig: 11 [#1]
a00: 908240ed d47c9bd0 ffffffa1 d47c9bf0 000000c0 d4a5db40 00000003 0000000c
a08: 00000000 d47c9db0 d4b36000 000089a2 3fff0d58 d47c9e40 0000000e 3fff0f64
pc: d082d300, ps: 00060f10, depc: 00000018, excvaddr: 00000000
lbeg: d082fc4c, lend: d082fc57 lcount: 00000000, sar: 00000014
Stack: 00060600 03938702 d063c73c d0638c78 90824a19 d47c9c40 fffffff4
d4649000
00000001 00000000 00000000 00000000 00000000 00000000 00000000
00000000
00000000 00000000 00000000 d078a510 00000000 fffffffe 00060d00
d4a5da80
Call Trace:
[<d082460e>] br_add_if+0xfa/0x23c
[<d0824a19>] add_del_if+0x31/0x5c
[<d0824f52>] br_dev_ioctl+0x50e/0x514
[<d0780eac>] dev_ifsioc+0x31c/0x330
[<d0781902>] dev_ioctl+0x616/0x6b4
[<d0774676>] sock_ioctl+0x1b6/0x1c0
[<d065aa64>] vfs_ioctl+0x14/0x3c
[<d065b284>] do_vfs_ioctl+0x4a4/0x4c4
[<d065b2c4>] sys_ioctl+0x20/0x34
[<d0612470>] system_call+0x40/0x50
[<d0611b65>] _user_exception+0x10f/0x130
Please do let me know whether this is a known issue and whether there is any
official patch available for the same.
Thanking in advance.
Regards.
Debasis
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Stephen Hemminger
2010-Aug-30 16:20 UTC
[Bridge] help needed regarding crash while adding interface to a bridge using brctl utility
On Mon, 30 Aug 2010 16:29:43 +0530 debasis das <fordebasis at gmail.com> wrote:> Hi, > I am getting a crash while adding an interface to a bridge using the > "brctl" utility. > The crash dump is as below: > > #vconfig add eth0 5 > #brctl addbr br0 > #brctl addif br0 eth0.5 > Oops: sig: 11 [#1] > > a00: 908240ed d47c9bd0 ffffffa1 d47c9bf0 000000c0 d4a5db40 00000003 0000000c > a08: 00000000 d47c9db0 d4b36000 000089a2 3fff0d58 d47c9e40 0000000e 3fff0f64 > pc: d082d300, ps: 00060f10, depc: 00000018, excvaddr: 00000000 > lbeg: d082fc4c, lend: d082fc57 lcount: 00000000, sar: 00000014 > > Stack: 00060600 03938702 d063c73c d0638c78 90824a19 d47c9c40 fffffff4 > d4649000 > 00000001 00000000 00000000 00000000 00000000 00000000 00000000 > 00000000 > 00000000 00000000 00000000 d078a510 00000000 fffffffe 00060d00 > d4a5da80 > Call Trace: > [<d082460e>] br_add_if+0xfa/0x23c > [<d0824a19>] add_del_if+0x31/0x5c > [<d0824f52>] br_dev_ioctl+0x50e/0x514 > [<d0780eac>] dev_ifsioc+0x31c/0x330 > [<d0781902>] dev_ioctl+0x616/0x6b4 > [<d0774676>] sock_ioctl+0x1b6/0x1c0 > [<d065aa64>] vfs_ioctl+0x14/0x3c > [<d065b284>] do_vfs_ioctl+0x4a4/0x4c4 > [<d065b2c4>] sys_ioctl+0x20/0x34 > [<d0612470>] system_call+0x40/0x50 > [<d0611b65>] _user_exception+0x10f/0x130 > > Please do let me know whether this is a known issue and whether there is any > official patch available for the same. > Thanking in advance.I do not see this on x86 with current kernel. It might depend on the device used for eth0. When interface is added to bridge, the bridge code queries the device (via ethtool) to get the speed. It could be a bug in either the vlan device driver or the underlying driver that is causing the problem. --
debasis das
2010-Aug-31 05:54 UTC
[Bridge] help needed regarding crash while adding interface to a bridge using brctl utility
Hi Stephen,
Thanks a lot for your response.
Lennert Buytenhek helped me to finding the official patch
for this issue.
I have patched the diff available at:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7816a0a862d851d0b05710e7d94bfe390f3180e2;hp=75a241f959a65ec9bde237d1af1a34ef794f0c9c
It is working fine.
Thanking you again.
Best regards.
Debasis
On Mon, Aug 30, 2010 at 9:50 PM, Stephen Hemminger <
shemminger at linux-foundation.org> wrote:
> On Mon, 30 Aug 2010 16:29:43 +0530
> debasis das <fordebasis at gmail.com> wrote:
>
> > Hi,
> > I am getting a crash while adding an interface to a bridge using
the
> > "brctl" utility.
> > The crash dump is as below:
> >
> > #vconfig add eth0 5
> > #brctl addbr br0
> > #brctl addif br0 eth0.5
> > Oops: sig: 11 [#1]
> >
> > a00: 908240ed d47c9bd0 ffffffa1 d47c9bf0 000000c0 d4a5db40 00000003
> 0000000c
> > a08: 00000000 d47c9db0 d4b36000 000089a2 3fff0d58 d47c9e40 0000000e
> 3fff0f64
> > pc: d082d300, ps: 00060f10, depc: 00000018, excvaddr: 00000000
> > lbeg: d082fc4c, lend: d082fc57 lcount: 00000000, sar: 00000014
> >
> > Stack: 00060600 03938702 d063c73c d0638c78 90824a19 d47c9c40 fffffff4
> > d4649000
> > 00000001 00000000 00000000 00000000 00000000 00000000 00000000
> > 00000000
> > 00000000 00000000 00000000 d078a510 00000000 fffffffe 00060d00
> > d4a5da80
> > Call Trace:
> > [<d082460e>] br_add_if+0xfa/0x23c
> > [<d0824a19>] add_del_if+0x31/0x5c
> > [<d0824f52>] br_dev_ioctl+0x50e/0x514
> > [<d0780eac>] dev_ifsioc+0x31c/0x330
> > [<d0781902>] dev_ioctl+0x616/0x6b4
> > [<d0774676>] sock_ioctl+0x1b6/0x1c0
> > [<d065aa64>] vfs_ioctl+0x14/0x3c
> > [<d065b284>] do_vfs_ioctl+0x4a4/0x4c4
> > [<d065b2c4>] sys_ioctl+0x20/0x34
> > [<d0612470>] system_call+0x40/0x50
> > [<d0611b65>] _user_exception+0x10f/0x130
> >
> > Please do let me know whether this is a known issue and whether there
is
> any
> > official patch available for the same.
> > Thanking in advance.
>
> I do not see this on x86 with current kernel. It might depend on the device
> used for eth0. When interface is added to bridge, the bridge code queries
> the device (via ethtool) to get the speed. It could be a bug in either
> the vlan device driver or the underlying driver that is causing the
> problem.
> --
>
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