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SubjectBUG: unable to handle kernel NULL pointer dereference at 0000000000000040
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hello there,
i have this ethernet controler:

Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast
Ethernet controller (rev 05)

that uses the r8169 module.
it works fine, but sometimes after a reboot and issueing:

ifconfig eth0 192.168.1.1 up

i got the message below. after another reboot the
message disappears. i also get the same message this 3.9.5 and 3.9.4.

it seems i catch my first oops and don't know what to do with it.
currently running:

cat /proc/version
Linux version 3.9.6.20130614 (root@supernova) (gcc version 4.8.1 (GCC) )
#1 SMP Fri Jun 14 09:14:50 EAT 2013

uname -a
Linux supernova 3.9.6.20130614 #1 SMP Fri Jun 14 09:14:50 EAT 2013 x86_64
Intel(R) Celeron(R) CPU G1610 @ 2.60GHz GenuineIntel GNU/Linux

thanks,
-----------------8<------------------------------8<---------------------------------------

[ 57.877560] BUG: unable to handle kernel NULL pointer dereference at
0000000000000040
[ 57.877603] IP: [<ffffffff81491844>] fw_load_abort.isra.5+0x4/0x20
[ 57.877634] PGD 21330a067 PUD 211a3a067 PMD 0
[ 57.877660] Oops: 0002 [#1] SMP
[ 57.877681] Modules linked in: fuse coretemp kvm_intel kvm evdev r8169
microcode mii
[ 57.877735] CPU 0
[ 57.877746] Pid: 1950, comm: firmware Not tainted 3.9.6.20130614 #1 To
be filled by O.E.M. To be filled by O.E.M./ONDA H61V Ver:4.01
[ 57.877790] RIP: 0010:[<ffffffff81491844>] [<ffffffff81491844>]
fw_load_abort.isra.5+0x4/0x20
[ 57.877824] RSP: 0018:ffff8802119a7e80 EFLAGS: 00010246
[ 57.877844] RAX: ffff8802158fe250 RBX: ffff880211a03b40 RCX:
0000000000000000
[ 57.877869] RDX: ffffffff81c742c8 RSI: ffff8802158fe250 RDI:
0000000000000000
[ 57.877895] RBP: ffff8802119a7e80 R08: ffff8802119a6000 R09:
00000000000005aa
[ 57.877920] R10: 0000000000000000 R11: 0000000000000000 R12:
ffffffffffffffff
[ 57.877945] R13: ffff880213d34088 R14: 0000000000000003 R15:
ffff88020eafc230
[ 57.877970] FS: 00007f3c6cb2a740(0000) GS:ffff88021f200000(0000)
knlGS:0000000000000000
[ 57.877998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 57.878019] CR2: 0000000000000040 CR3: 0000000203155000 CR4:
00000000001407f0
[ 57.878044] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 57.878069] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 57.878094] Process firmware (pid: 1950, threadinfo ffff8802119a6000,
task ffff8802158fe250)
[ 57.878124] Stack:
[ 57.878133] ffff8802119a7eb0 ffffffff81491917 ffff880211a4d5a0
0000000000000003
[ 57.878168] ffff8802119a7f50 ffffffff818765a0 ffff8802119a7ec0
ffffffff81483063
[ 57.878203] ffff8802119a7f08 ffffffff8119bc9e ffff880213d34098
ffff880211a4d5c0
[ 57.878237] Call Trace:
[ 57.878251] [<ffffffff81491917>] firmware_loading_store+0x77/0x150
[ 57.878275] [<ffffffff81483063>] dev_attr_store+0x13/0x20
[ 57.878297] [<ffffffff8119bc9e>] sysfs_write_file+0xce/0x140
[ 57.878320] [<ffffffff81133e8a>] vfs_write+0x9a/0x160
[ 57.878340] [<ffffffff81134164>] sys_write+0x44/0x90
[ 57.878360] [<ffffffff817d70ed>] system_call_fastpath+0x1a/0x1f
[ 57.879379] Code: 6b ff ff ff 48 89 df 31 db e8 b9 b0 c9 ff e9 79 ff ff
ff 0f 1f 40 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 5d c3 0f 1f 00 55 48 89 e5
<f0> 80 4f 40 04 48 83 c7 18 e8 8e a9 bd ff 5d c3 66 66 66 2e 0f
[ 57.881753] RIP [<ffffffff81491844>] fw_load_abort.isra.5+0x4/0x20
[ 57.882888] RSP <ffff8802119a7e80>
[ 57.884019] CR2: 0000000000000040
[ 57.885166] ---[ end trace 6705f6d4ce6b6a12 ]---

--
nirinA


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