hi
Marek Vasut wrote, at 08/02/2011 05:25 AM:
> Hi,
>
> recently a friend of mine sent me this backtrace. I put him in CC so please any
> subsequent questions shall be forwarded to him.
>
> He claims this happens on pandaboard.
>
> Cheers
>
> root@box:~# brctl addbr br0
> root@box:~# brctl addif br0 eth0
> [ 77.795776] Unable to handle kernel NULL pointer dereference at virtual
> address 00000000
> [ 77.804321] pgd = ee8d4000
> [ 77.807312] [00000000] *pgd=af8e6831, *pte=00000000, *ppte=00000000
> [ 77.813995] Internal error: Oops: 80000007 [#1] SMP
> [ 77.819122] last sysfs file: /sys/devices/virtual/net/br0/uevent
> [ 77.825439] Modules linked in: bridge stp llc wl12xx_sdio wl12xx
> [ 77.831787] CPU: 0 Not tainted (2.6.39.2-omap4 #3)
> [ 77.837188] PC is at 0x0
> [ 77.839904] LR is at br_change_mtu+0x64/0x7c [bridge]
This one has been fixed in latest kernel.
commit 6407d74c5106bb362b4087693688afd34942b094
Author: Alexander Holler <holler@xxxxxxxxxxxxx>
Date: Tue Jun 7 00:51:35 2011 -0700
bridge: provide a cow_metrics method for fake_ops
Like in commit 0972ddb237 (provide cow_metrics() methods to blackhole
dst_ops), we must provide a cow_metrics for bridges fake_dst_ops as
well.
This fixes a regression coming from commits 62fa8a846d7d (net: Implement
read-only protection and COW'ing of metrics.) and 33eb9873a28 (bridge:
initialize fake_rtable metrics)
ip link set mybridge mtu 1234
--
Best Regards
-----
Shan Wei
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