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] [ 77.845214] pc : [<00000000>] lr : [<bf068260>] psr: 20000013 [ 77.845214] sp : ef25de58 ip : ef937e08 fp : 00000000 [ 77.857299] r10: 00000001 r9 : ef25c000 r8 : 00000000 [ 77.862762] r7 : ef937f00 r6 : ef280540 r5 : ef280000 r4 : 000005d4 [ 77.869628] r3 : 00000000 r2 : ef280560 r1 : bf0729e9 r0 : ef280994 [ 77.876495] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 77.883972] Control: 10c5387d Table: ae8d404a DAC: 00000015 [ 77.890014] Process brctl (pid: 4290, stack limit = 0xef25c2f8) [ 77.896240] Stack: (0xef25de58 to 0xef25e000) [ 77.900817] de40: ef280000 ee88a800 [ 77.909393] de60: ef280540 c0390f54 ef280000 bf069d98 00000000 ef25ded0 ef280000 000089a2 [ 77.917999] de80: ef25ded0 00000000 00000000 c0392390 000089a2 ef25ded0 c0c09da0 c03929f4 [ 77.926605] dea0: 00000002 00000000 0000006c 00000000 00000000 00000001 00000000 ef68bd94 [ 77.935180] dec0: ef68bd80 00000000 ef68bd80 ef68bd80 00307262 00000000 00000000 00000000 [ 77.943786] dee0: 00000002 bed89d78 4004b450 bed89e79 00000000 c0bf3bc8 bed89bbc c171c340 [ 77.952362] df00: 000089a2 00000003 00000000 ef25c000 00000000 c011f958 0000c000 c0120058 [ 77.960968] df20: 00000000 00000000 eacec460 ef820620 ef25c000 c0668464 ef82063c c004c248 [ 77.969573] df40: ef25c000 00000000 00000000 c012ae44 00000002 00000000 ef820620 ef25c000 [ 77.978149] df60: c17d4a60 c171c340 bed89bbc 000089a2 00000003 00000000 ef25c000 00000000 [ 77.986755] df80: 00000000 c01200ec 00000003 00000000 bed89e7f bed89e83 00000001 00000036 [ 77.995361] dfa0: c004c248 c004c080 bed89e7f bed89e83 00000003 000089a2 bed89bbc bed89bbc [ 78.003936] dfc0: bed89e7f bed89e83 00000001 00000036 bed89d78 00000000 4005b000 00000000 [ 78.012542] dfe0: 40220c30 bed89b94 0000b0c3 40220c3c 80000010 00000003 0000b10d 04070000 [ 78.021148] [<bf068260>] (br_change_mtu+0x64/0x7c [bridge]) from [<c0390f54>] (dev_set_mtu+0x44/0x7c) [ 78.030883] [<c0390f54>] (dev_set_mtu+0x44/0x7c) from [<bf069d98>] (br_add_if+0x2fc/0x3cc [bridge]) [ 78.040405] [<bf069d98>] (br_add_if+0x2fc/0x3cc [bridge]) from [<c0392390>] (dev_ifsioc+0x294/0x2b0) [ 78.049987] [<c0392390>] (dev_ifsioc+0x294/0x2b0) from [<c03929f4>] (dev_ioctl+0x648/0x748) [ 78.058776] [<c03929f4>] (dev_ioctl+0x648/0x748) from [<c011f958>] (vfs_ioctl+0x20/0x3c) [ 78.067291] [<c011f958>] (vfs_ioctl+0x20/0x3c) from [<c0120058>] (do_vfs_ioctl+0x4e8/0x530) [ 78.076080] [<c0120058>] (do_vfs_ioctl+0x4e8/0x530) from [<c01200ec>] (sys_ioctl+0x4c/0x6c) [ 78.084869] [<c01200ec>] (sys_ioctl+0x4c/0x6c) from [<c004c080>] (ret_fast_syscall+0x0/0x3c) [ 78.093749] Code: bad PC value [ 78.098571] ---[ end trace 735bf785e3a5afd2 ]--- Segmentation fault -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
