When I used the latest mainline ubuntu kernel (4.17.2-041702-generic) it's also happened, but it not very often when the bluetooth used.
here the dmesg info [ 1856.640545] ------------[ cut here ]------------ [ 1856.640551] wlp2s0: invalid CW_min/CW_max: 65192/16692 [ 1856.640639] WARNING: CPU: 0 PID: 202 at /home/kernel/COD/linux/net/mac80211/driver-ops.c:175 drv_conf_tx+0x1a5/0x1b0 [mac80211] [ 1856.640641] Modules linked in: hid_generic hidp hid uvcvideo cmac cpuid rfcomm bnep ccm ec_sys binfmt_misc nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_conexant irqbypass snd_hda_codec_generic snd_hda_intel snd_hda_codec crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_core snd_hwdep pcbc snd_pcm snd_seq_midi snd_seq_midi_event arc4 snd_rawmidi ath3k btusb btrtl aesni_intel btbcm aes_x86_64 ath9k btintel rtsx_usb_ms crypto_simd snd_seq snd_seq_device bluetooth snd_timer snd videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 cryptd ecdh_generic videobuf2_common ath9k_common memstick ath9k_hw rts5139(OE) glue_helper ath intel_cstate soundcore videodev ideapad_laptop(OE) media joydev input_leds mac80211 intel_rapl_perf [ 1856.640712] cfg80211 serio_raw mei_me lpc_ich sparse_keymap mei shpchp mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 rtsx_usb_sdmmc rtsx_usb i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ahci drm psmouse libahci r8169 mii video [last unloaded: uvcvideo] [ 1856.640753] CPU: 0 PID: 202 Comm: kworker/u16:3 Tainted: G OE 4.17.2-041702-generic #201806160433 [ 1856.640755] Hardware name: LENOVO 20369/Lancer 4A2, BIOS 9ACN29WW 10/20/2014 [ 1856.640783] Workqueue: phy0 ieee80211_iface_work [mac80211] [ 1856.640806] RIP: 0010:drv_conf_tx+0x1a5/0x1b0 [mac80211] [ 1856.640808] RSP: 0018:ffffb5ea41147c88 EFLAGS: 00010286 [ 1856.640811] RAX: 0000000000000000 RBX: ffff98f8fcf748c0 RCX: 0000000000000006 [ 1856.640813] RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff98f90f2164b0 [ 1856.640815] RBP: ffffb5ea41147cb0 R08: 00000000000003a2 R09: 0000000000000004 [ 1856.640817] R10: 000000000000ffff R11: 0000000000000001 R12: 00000000ffffffea [ 1856.640819] R13: ffff98f902e68760 R14: 0000000000000000 R15: ffffb5ea41147ce6 [ 1856.640822] FS: 0000000000000000(0000) GS:ffff98f90f200000(0000) knlGS:0000000000000000 [ 1856.640824] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1856.640826] CR2: 000055c34cd63670 CR3: 000000007220a006 CR4: 00000000001606f0 [ 1856.640828] Call Trace: [ 1856.640862] ieee80211_set_wmm_default+0x19c/0x390 [mac80211] [ 1856.640892] ieee80211_set_disassoc+0x220/0x5c0 [mac80211] [ 1856.640899] ? update_curr+0xed/0x1c0 [ 1856.640924] ieee80211_sta_connection_lost.constprop.24+0x39/0x70 [mac80211] [ 1856.640950] ieee80211_sta_work+0x216/0x770 [mac80211] [ 1856.640958] ? __switch_to+0xad/0x500 [ 1856.640982] ieee80211_iface_work+0x2bd/0x330 [mac80211] [ 1856.640988] process_one_work+0x1de/0x3e0 [ 1856.640992] worker_thread+0x32/0x410 [ 1856.640996] kthread+0x121/0x140 [ 1856.641000] ? process_one_work+0x3e0/0x3e0 [ 1856.641004] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1856.641009] ret_from_fork+0x35/0x40 [ 1856.641011] Code: 5c 41 5d 41 5e 41 5f 5d c3 41 0f b7 4f 04 48 8d b3 28 04 00 00 0f b7 d0 48 c7 c7 50 6a 84 c0 c6 05 a2 17 09 00 01 e8 9b f2 8b d8 <0f> 0b e9 a9 fe ff ff 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 [ 1856.641073] ---[ end trace 4c80692ad0dfac1e ]--- [ 1863.689709] wlp2s0: authenticate with 98:de:d0:4d:0b:a4 [ 1863.715836] wlp2s0: send auth to 98:de:d0:4d:0b:a4 (try 1/3) [ 1863.730237] wlp2s0: authenticated [ 1863.732235] wlp2s0: associate with 98:de:d0:4d:0b:a4 (try 1/3) [ 1863.738596] wlp2s0: RX AssocResp from 98:de:d0:4d:0b:a4 (capab=0x411 status=0 aid=3) [ 1863.738750] wlp2s0: associated [ 1863.738864] ath: EEPROM regdomain: 0x824f [ 1863.738865] ath: EEPROM indicates we should expect a country code [ 1863.738867] ath: doing EEPROM country->regdmn map search [ 1863.738869] ath: country maps to regdmn code: 0x10 [ 1863.738871] ath: Country alpha2 being used: PA [ 1863.738872] ath: Regpair used: 0x10 [ 1863.738875] ath: regdomain 0x824f dynamically updated by country IE -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775772 Title: Atheros Wireless ath9k random segmentation fault ath9k_cmn_rx_skb_postprocess+0x4b/0x130 [ath9k_common] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775772/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
