Hi I'm testing wifi-P2P with an ath9k_htc device. The relevant log from wpa_cli is: > p2p_find OK <3>P2P-DEVICE-FOUND 12:68:3f:4e:39:f2 p2p_dev_addr=12:68:3f:4e:39:f2 pri_dev_type=10-0050F204-5 name='dvdhrm-nx' config_methods=0x188 dev_capab=0x25 group_capab=0x0 <3>P2P-PROV-DISC-SHOW-PIN 12:68:3f:4e:39:f2 33413853 p2p_dev_addr=12:68:3f:4e:39:f2 pri_dev_type=10-0050F204-5 name='dvdhrm-nx' config_methods=0x188 dev_capab=0x25 group_capab=0x0 > p2p_connect 12:68:3f:4e:39:f2 pin 98344376 <3>P2P-FIND-STOPPED <3>P2P-GO-NEG-SUCCESS role=GO freq=2462 ht40=0 peer_dev=12:68:3f:4e:39:f2 peer_iface=12:68:3f:4e:b9:f2 wps_method=Display After the P2P-GO-NEG-SUCCESS I get a NULL-deref in the ath9k-htc driver, logs appended below. Kernel is 3.12.2 but I also get this with 3.11. I can test any -git trees if you want, but bisecting won't work as I don't know any working revision. Any hints are welcome! Thanks David Dec 05 11:13:46 david-ub kernel: BUG: unable to handle kernel NULL pointer dereference at 000000000000000c Dec 05 11:13:46 david-ub kernel: IP: [<ffffffffa0b6d9e2>] ar9002_hw_calibrate+0x3b2/0x430 [ath9k_hw] Dec 05 11:13:46 david-ub kernel: PGD 0. Dec 05 11:13:46 david-ub kernel: Oops: 0002 [#1] PREEMPT SMP. Dec 05 11:13:46 david-ub kernel: Modules linked in: ath9k_htc ath9k_common ath9k_hw ath btusb bluetooth crc16 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev arc4 hid_sensor_hub nls_cp437 vfat fat hid_generic microread_mei microread crc_ccitt mei_phy hid_multitouch hci nfc iwldvm iTCO_wdt iTCO_vendor_support mac80211 iwlwifi microcode psmouse evdev snd_hda_codec_hdmi ums_realtek usbhid usb_storage serio_raw hid cfg80211 pcspkr i2c_i801 snd_hda_codec_realtek rfkill i915 fan thermal snd_hda_intel intel_agp intel_gtt drm_kms_helper snd_hda_codec drm battery video snd_hwdep snd_pcm i2c_algo_bit i2c_core Dec 05 11:13:46 david-ub kernel: snd_page_alloc ac mei_me snd_timer snd mei button soundcore shpchp lpc_ich processor usbip_host(C) usbip_core(C) btrfs libcrc32c xor raid6_pq sd_mod crc32c_intel ahci libahci libata ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common Dec 05 11:13:46 david-ub kernel: CPU: 1 PID: 6 Comm: kworker/u32:0 Tainted: G C 3.12.2-1-ARCH #1 Dec 05 11:13:46 david-ub kernel: Hardware name: Intel Corporation 2012 Client Platform/Latexo FFRD, BIOS ACRVMBY1.86C.0094.P02.1207301240 07/30/2012 Dec 05 11:13:46 david-ub kernel: Workqueue: phy2 ath9k_htc_ani_work [ath9k_htc] Dec 05 11:13:46 david-ub kernel: task: ffff8801492dab70 ti: ffff880149352000 task.ti: ffff880149352000 Dec 05 11:13:46 david-ub kernel: RIP: 0010:[<ffffffffa0b6d9e2>] [<ffffffffa0b6d9e2>] ar9002_hw_calibrate+0x3b2/0x430 [ath9k_hw] Dec 05 11:13:46 david-ub kernel: RSP: 0018:ffff880149353db0 EFLAGS: 00010286 Dec 05 11:13:46 david-ub kernel: RAX: 0000000000000001 RBX: ffff880149294000 RCX: 00000000ffffffff Dec 05 11:13:46 david-ub kernel: RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246 Dec 05 11:13:46 david-ub kernel: RBP: ffff880149353de8 R08: 0000000000000000 R09: 0000000000000001 Dec 05 11:13:46 david-ub kernel: R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000 Dec 05 11:13:46 david-ub kernel: R13: ffff880149294220 R14: ffff8801492955c0 R15: 0000000000000000 Dec 05 11:13:46 david-ub kernel: FS: 0000000000000000(0000) GS:ffff88014f220000(0000) knlGS:0000000000000000 Dec 05 11:13:46 david-ub kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Dec 05 11:13:46 david-ub kernel: CR2: 000000000000000c CR3: 000000000280d000 CR4: 00000000001407e0 Dec 05 11:13:46 david-ub kernel: Stack: Dec 05 11:13:46 david-ub kernel: 00000000a0bdba8e ffff880100000000 ffff880149294000 ffff88013e42dde0 Dec 05 11:13:46 david-ub kernel: 0000000055554fb8 ffff88013e42d7c0 0000000000000000 ffff880149353e20 Dec 05 11:13:46 david-ub kernel: ffffffffa0bda99a ffff88014925db00 ffff88014a811800 ffff88013e42dde0 Dec 05 11:13:46 david-ub kernel: Call Trace: Dec 05 11:13:46 david-ub kernel: [<ffffffffa0bda99a>] ath9k_htc_ani_work+0xea/0x1a0 [ath9k_htc] Dec 05 11:13:46 david-ub kernel: [<ffffffff8107daf7>] process_one_work+0x167/0x450 Dec 05 11:13:46 david-ub kernel: [<ffffffff8107e501>] worker_thread+0x121/0x3a0 Dec 05 11:13:46 david-ub kernel: [<ffffffff8107e3e0>] ? manage_workers.isra.23+0x2b0/0x2b0 Dec 05 11:13:46 david-ub kernel: [<ffffffff81084e90>] kthread+0xc0/0xd0 Dec 05 11:13:46 david-ub kernel: [<ffffffff81084dd0>] ? kthread_create_on_node+0x120/0x120 Dec 05 11:13:46 david-ub kernel: [<ffffffff814fc33c>] ret_from_fork+0x7c/0xb0 Dec 05 11:13:46 david-ub kernel: [<ffffffff81084dd0>] ? kthread_create_on_node+0x120/0x120 Dec 05 11:13:46 david-ub kernel: Code: d3 f8 83 e0 01 83 f8 01 83 de ff 83 c1 01 83 f9 03 75 eb 44 89 45 d0 40 0f b6 f6 48 89 df 41 ff 51 18 49 8b 06 44 8b 45 d0 8b 00 <41> 09 47 0c 49 8b 76 10 41 c7 46 08 03 00 00 00 48 89 b3 00 16. Dec 05 11:13:46 david-ub kernel: RIP [<ffffffffa0b6d9e2>] ar9002_hw_calibrate+0x3b2/0x430 [ath9k_hw] Dec 05 11:13:46 david-ub kernel: RSP <ffff880149353db0> Dec 05 11:13:46 david-ub kernel: CR2: 000000000000000c Dec 05 11:13:46 david-ub kernel: ---[ end trace 568b2b5d97c813d2 ]--- Dec 05 11:13:46 david-ub kernel: BUG: unable to handle kernel paging request at ffffffffffffffd8 Dec 05 11:13:46 david-ub kernel: IP: [<ffffffff810854f0>] kthread_data+0x10/0x20 The log before the oops is just the USB-hotplug information: Dec 05 11:12:59 david-ub kernel: usb 1-3: new high-speed USB device number 3 using xhci_hcd Dec 05 11:12:59 david-ub kernel: usbip-host 1-3:1.0: 1-3 is not in match_busid table... skip! Dec 05 11:12:59 david-ub kernel: usb 1-3: ath9k_htc: Firmware htc_7010.fw requested Dec 05 11:12:59 david-ub kernel: usb 1-3: ath9k_htc: Transferred FW: htc_7010.fw, size: 72992 Dec 05 11:12:59 david-ub kernel: ath9k_htc 1-3:1.0: ath9k_htc: HTC initialized with 45 credits Dec 05 11:13:00 david-ub kernel: ath9k_htc 1-3:1.0: ath9k_htc: FW Version: 1.3 Dec 05 11:13:00 david-ub kernel: ath: EEPROM regdomain: 0x6a Dec 05 11:13:00 david-ub kernel: ath: EEPROM indicates we should expect a direct regpair map Dec 05 11:13:00 david-ub kernel: ath: Country alpha2 being used: 00 Dec 05 11:13:00 david-ub kernel: ath: Regpair used: 0x6a Dec 05 11:13:00 david-ub kernel: ieee80211 phy2: Atheros AR9280 Rev:2 Dec 05 11:13:02 david-ub kernel: IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready Dec 05 11:13:46 david-ub kernel: IPv6: ADDRCONF(NETDEV_UP): p2p-wlan1-0: link is not ready Dec 05 11:13:46 david-ub kernel: IPv6: ADDRCONF(NETDEV_UP): p2p-wlan1-0: link is not ready -- 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
