From: "Harms, Hannes" <hannes.harms@tu-bs.de>
To: b.a.t.m.a.n@lists.open-mesh.org
Subject: [B.A.T.M.A.N.] How to compile BATMAN V against linux backports cfg80211
Date: Wed, 8 Jun 2016 12:03:32 +0200 [thread overview]
Message-ID: <5757ED74.2010109@tu-bs.de> (raw)
Hi,
I want to test the new batman V with throughput based metric, but I
could not find out how to compile batman-adv against cfg80211 from linux
backports.
At the moment first I am compiling cfg80211 and ath10k from the
backports tree.
After that I manually copy the created Modules.symvers from backports
build dir to the batman-adv folder
and running make with KBUILD_EXTRA_SYMBOLS, because otherwise I am
getting a warning that the
cfg80211_get_station symbol is missing.
Then batman-adv compiles fine.
After loading the module I am getting an error with
batadv_v_elp_throughput_metric_update :
[ 150.332710] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[ 150.341079] pgd = 80004000
[ 150.343900] [00000000] *pgd=00000000
[ 150.347735] Internal error: Oops: 80000007 [#1] SMP ARM
[ 150.347768] Modules linked in: batman_adv(O) bluetooth 6lowpan_iphc
arc4 sky2 ath10k_pci(O) ath10k_core(O) ath(O) mac80211(O) ftdi_sio
usbserial cfg80211(O) compat(O)
[ 150.347779] CPU: 0 PID: 21 Comm: kworker/u4:1 Tainted: G O
3.14.48+yocto+g36eba1d #1
[ 150.347836] Workqueue: bat_events
batadv_v_elp_throughput_metric_update [batman_adv]
[ 150.347841] task: 9c0c5f80 ti: 9c1e4000 task.ti: 9c1e4000
[ 150.347848] PC is at 0x0
[ 150.347851] LR is at 0x0
[ 150.347857] pc : [<00000000>] lr : [<00000000>] psr: 20070013
[ 150.347857] sp : 9c1e5f08 ip : 0000001e fp : 9c004400
[ 150.347861] r10: 9c1e4008 r9 : 00000000 r8 : 9c004400
[ 150.347865] r7 : 00000000 r6 : 9de20500 r5 : 00000002 r4 : 9c1bc980
[ 150.347868] r3 : 96a0ee38 r2 : 00000001 r1 : 00000000 r0 : 96a0ee00
[ 150.347874] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM
Segment kernel
[ 150.347878] Control: 10c53c7d Table: 2697804a DAC: 00000015
[ 150.347882] Process kworker/u4:1 (pid: 21, stack limit = 0x9c1e4238)
[ 150.347886] Stack: (0x9c1e5f08 to 0x9c1e6000)
Regards Hannes
next reply other threads:[~2016-06-08 10:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 10:03 Harms, Hannes [this message]
2016-06-08 11:20 ` [B.A.T.M.A.N.] How to compile BATMAN V against linux backports cfg80211 Sven Eckelmann
2016-06-09 13:44 ` Harms, Hannes
2016-06-10 8:15 ` Sven Eckelmann
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