On Wed, Feb 3, 2016 at 10:24 AM, Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxx> wrote: > Hi All, > > We've had a user report the backtrace below when loading batman-adv on > his machine. It looks like the cfg80211 layer is complaining about a > null bss returned, but I cannot tell if the rtlwifi driver or > batman-adv is in error here. > > Thoughts? Sorry, forgot to include the link to the actual bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1304428 Reporter says this is new with 4.3.y and did not happen on e.g. 4.2.8. josh > > Jan 28 22:29:21 melissa.gathman.org kernel: batman_adv: B.A.T.M.A.N. > advanced 2015.2 (compatibility version 15) loaded > Jan 28 22:29:21 melissa.gathman.org kernel: wlp0s26u1u4: Selected IBSS > BSSID 02:1a:a0:3a:a6:ff based on configured SSID > Jan 28 22:29:21 melissa.gathman.org kernel: ------------[ cut here ]------------ > Jan 28 22:29:21 melissa.gathman.org kernel: WARNING: CPU: 1 PID: 111 > at net/wireless/ibss.c:35 __cfg80211_ibss_joined+0x166/0x190 > [cfg80211]() > Jan 28 22:29:21 melissa.gathman.org kernel: Modules linked in: > batman_adv libcrc32c xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 > nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter > ip6t_REJECT nf_reject_ipv6 xt_conntrack tun ebtable_filter ebtable_nat > ebtable_broute bridge stp llc ebtables ip6table_mangle ip6table_nat > nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_raw > ip6table_security ip6table_filter ip6_tables iptable_mangle > iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat > nf_conntrack iptable_raw iptable_security arc4 rtl8192cu rtl_usb > rtl8192c_common rtlwifi mac80211 cfg80211 rfkill uvcvideo > videobuf2_vmalloc videobuf2_core videobuf2_memops v4l2_common > intel_rapl snd_hda_codec_hdmi snd_usb_audio joydev snd_usbmidi_lib > snd_hda_codec_realtek iosf_mbi x86_pkg_temp_thermal videodev coretemp > kvm_intel > Jan 28 22:29:21 melissa.gathman.org kernel: media snd_rawmidi cm109 > snd_hda_codec_generic kvm snd_hda_intel iTCO_wdt snd_hda_codec > iTCO_vendor_support crct10dif_pclmul snd_hda_core ppdev snd_hwdep > snd_seq snd_seq_device snd_pcm crc32_pclmul crc32c_intel snd_timer snd > dcdbas lpc_ich mei_me parport_pc parport shpchp i2c_i801 mei tpm_tis > tpm soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc > hid_microsoft i915 i2c_algo_bit drm_kms_helper drm e1000e serio_raw > ptp pps_core fjes video > Jan 28 22:29:21 melissa.gathman.org kernel: CPU: 1 PID: 111 Comm: > kworker/u32:5 Not tainted 4.3.3-301.fc23.x86_64 #1 > Jan 28 22:29:21 melissa.gathman.org kernel: Hardware name: Dell Inc. > OptiPlex 790/0HY9JP, BIOS A06 07/25/2011 > Jan 28 22:29:21 melissa.gathman.org kernel: Workqueue: cfg80211 > cfg80211_event_work [cfg80211] > Jan 28 22:29:21 melissa.gathman.org kernel: 0000000000000000 > 000000008beeeb5f ffff8800368bfce0 ffffffff813a626f > Jan 28 22:29:21 melissa.gathman.org kernel: 0000000000000000 > ffff8800368bfd18 ffffffff810a07c2 ffff8800c2bc8850 > Jan 28 22:29:21 melissa.gathman.org kernel: ffff8800c2bc8000 > ffff8801275bd558 0000000000000000 0000000000000286 > Jan 28 22:29:21 melissa.gathman.org kernel: Call Trace: > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff813a626f>] > dump_stack+0x44/0x55 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810a07c2>] > warn_slowpath_common+0x82/0xc0 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810a090a>] > warn_slowpath_null+0x1a/0x20 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffffa05dfcd6>] > __cfg80211_ibss_joined+0x166/0x190 [cfg80211] > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffffa05bb02c>] > cfg80211_process_wdev_events+0x8c/0x190 [cfg80211] > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffffa05bb162>] > cfg80211_process_rdev_events+0x32/0x70 [cfg80211] > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffffa05b601e>] > cfg80211_event_work+0x1e/0x30 [cfg80211] > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810b8cde>] > process_one_work+0x19e/0x3f0 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810b8f7e>] > worker_thread+0x4e/0x450 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810b8f30>] ? > process_one_work+0x3f0/0x3f0 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810bede8>] > kthread+0xd8/0xf0 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810bed10>] ? > kthread_worker_fn+0x160/0x160 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff8178195f>] > ret_from_fork+0x3f/0x70 > Jan 28 22:29:21 melissa.gathman.org kernel: [<ffffffff810bed10>] ? > kthread_worker_fn+0x160/0x160 > Jan 28 22:29:21 melissa.gathman.org kernel: ---[ end trace 04ee7067960ce525 ]--- > Jan 28 22:29:21 melissa.gathman.org kernel: batman_adv: bat0: Adding > interface: wlp0s26u1u4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
