Not exactly the same problem, but also a firmware bug that happens every time the machine wakes up from suspend (the network is 2.5GHz) [156613.591071] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [156613.593630] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.594645] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.634984] Bluetooth: hci0: read Intel version: 370710018002030d00 [156613.636114] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq [156613.802489] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.803084] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.831206] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [156613.844398] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.845047] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156613.847005] Bluetooth: hci0: Intel Bluetooth firmware patch completed and activated [156614.054828] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156614.055507] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled [156614.077241] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [156614.140494] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [156616.413449] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [156616.492565] wlan0: authenticate with e4:8d:8c:61:7d:04 [156616.495338] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000. [156616.495344] iwlwifi 0000:02:00.0: CSR values: [156616.495346] iwlwifi 0000:02:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) [156616.495377] iwlwifi 0000:02:00.0: CSR_HW_IF_CONFIG_REG: 0X40489204 [156616.495441] iwlwifi 0000:02:00.0: CSR_INT_COALESCING: 0X80000040 [156616.495582] iwlwifi 0000:02:00.0: CSR_INT: 0X00000000 [156616.495637] iwlwifi 0000:02:00.0: CSR_INT_MASK: 0X00000000 [156616.495692] iwlwifi 0000:02:00.0: CSR_FH_INT_STATUS: 0X00000000 [156616.495747] iwlwifi 0000:02:00.0: CSR_GPIO_IN: 0X00000000 [156616.495803] iwlwifi 0000:02:00.0: CSR_RESET: 0X00000000 [156616.495858] iwlwifi 0000:02:00.0: CSR_GP_CNTRL: 0X080403cd [156616.495912] iwlwifi 0000:02:00.0: CSR_HW_REV: 0X00000144 [156616.495967] iwlwifi 0000:02:00.0: CSR_EEPROM_REG: 0X00000000 [156616.496023] iwlwifi 0000:02:00.0: CSR_EEPROM_GP: 0X80000000 [156616.496078] iwlwifi 0000:02:00.0: CSR_OTP_GP_REG: 0X803a0000 [156616.496134] iwlwifi 0000:02:00.0: CSR_GIO_REG: 0X001f0042 [156616.496189] iwlwifi 0000:02:00.0: CSR_GP_UCODE_REG: 0X00000000 [156616.496244] iwlwifi 0000:02:00.0: CSR_GP_DRIVER_REG: 0X00000000 [156616.496299] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP1: 0X00000000 [156616.496355] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP2: 0X00000000 [156616.496410] iwlwifi 0000:02:00.0: CSR_LED_REG: 0X00000060 [156616.496475] iwlwifi 0000:02:00.0: CSR_DRAM_INT_TBL_REG: 0X88211e3b [156616.496615] iwlwifi 0000:02:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200 [156616.496670] iwlwifi 0000:02:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5 [156616.496725] iwlwifi 0000:02:00.0: CSR_MONITOR_STATUS_REG: 0X3d0801bd [156616.496780] iwlwifi 0000:02:00.0: CSR_HW_REV_WA_REG: 0X0001001a [156616.496835] iwlwifi 0000:02:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000 [156616.496837] iwlwifi 0000:02:00.0: FH register values: [156616.496892] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X21266b00 [156616.496947] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02126550 [156616.497002] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000070 [156616.497057] iwlwifi 0000:02:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114 [156616.497112] iwlwifi 0000:02:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc [156616.497167] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000 [156616.497223] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000 [156616.497278] iwlwifi 0000:02:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001 [156616.497333] iwlwifi 0000:02:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000 [156616.497486] iwlwifi 0000:02:00.0: Start IWL Error Log Dump: [156616.497489] iwlwifi 0000:02:00.0: Status: 0x00000000, count: 6 [156616.497491] iwlwifi 0000:02:00.0: Loaded firmware version: 17.459231.0 [156616.497494] iwlwifi 0000:02:00.0: 0x000014FD | ADVANCED_SYSASSERT [156616.497496] iwlwifi 0000:02:00.0: 0x000002E0 | trm_hw_status0 [156616.497498] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1 [156616.497500] iwlwifi 0000:02:00.0: 0x00000B30 | branchlink2 [156616.497503] iwlwifi 0000:02:00.0: 0x000164C0 | interruptlink1 [156616.497505] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2 [156616.497507] iwlwifi 0000:02:00.0: 0xDEADBEEF | data1 [156616.497509] iwlwifi 0000:02:00.0: 0xDEADBEEF | data2 [156616.497511] iwlwifi 0000:02:00.0: 0xDEADBEEF | data3 [156616.497514] iwlwifi 0000:02:00.0: 0x001D4378 | beacon time [156616.497516] iwlwifi 0000:02:00.0: 0x00251A18 | tsf low [156616.497518] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi [156616.497520] iwlwifi 0000:02:00.0: 0x00000000 | time gp1 [156616.497522] iwlwifi 0000:02:00.0: 0x00251A18 | time gp2 [156616.497524] iwlwifi 0000:02:00.0: 0x00000000 | uCode revision type [156616.497526] iwlwifi 0000:02:00.0: 0x00000011 | uCode version major [156616.497528] iwlwifi 0000:02:00.0: 0x000701DF | uCode version minor [156616.497531] iwlwifi 0000:02:00.0: 0x00000144 | hw version [156616.497533] iwlwifi 0000:02:00.0: 0x40489204 | board version [156616.497535] iwlwifi 0000:02:00.0: 0x00370108 | hcmd [156616.497537] iwlwifi 0000:02:00.0: 0x20022080 | isr0 [156616.497539] iwlwifi 0000:02:00.0: 0x00000000 | isr1 [156616.497541] iwlwifi 0000:02:00.0: 0x00000002 | isr2 [156616.497543] iwlwifi 0000:02:00.0: 0x00402480 | isr3 [156616.497545] iwlwifi 0000:02:00.0: 0x00000000 | isr4 [156616.497547] iwlwifi 0000:02:00.0: 0x01000112 | last cmd Id [156616.497549] iwlwifi 0000:02:00.0: 0x00000000 | wait_event [156616.497551] iwlwifi 0000:02:00.0: 0x00000850 | l2p_control [156616.497554] iwlwifi 0000:02:00.0: 0x00008020 | l2p_duration [156616.497556] iwlwifi 0000:02:00.0: 0x0000003F | l2p_mhvalid [156616.497558] iwlwifi 0000:02:00.0: 0x00000000 | l2p_addr_match [156616.497560] iwlwifi 0000:02:00.0: 0x00000007 | lmpm_pmg_sel [156616.497562] iwlwifi 0000:02:00.0: 0x11011741 | timestamp [156616.497564] iwlwifi 0000:02:00.0: 0x00007078 | flow_handler [156616.497568] ieee80211 phy0: Hardware restart was requested [156616.497583] iwlwifi 0000:02:00.0: FW error in SYNC CMD PHY_CONTEXT_CMD [156616.497587] CPU: 1 PID: 1738 Comm: wpa_supplicant Not tainted 4.10.0-20-generic #22-Ubuntu [156616.497588] Hardware name: ASUSTeK COMPUTER INC. UX301LAA/UX301LAA, BIOS UX301LAA.211 06/05/2015 [156616.497588] Call Trace: [156616.497593] dump_stack+0x63/0x81 [156616.497601] iwl_trans_pcie_send_hcmd+0x478/0x5a0 [iwlwifi] [156616.497604] ? wake_atomic_t_function+0x60/0x60 [156616.497610] iwl_trans_send_cmd+0x59/0xb0 [iwlwifi] [156616.497618] iwl_mvm_send_cmd+0x32/0xb0 [iwlmvm] [156616.497623] iwl_mvm_send_cmd_pdu+0x4f/0x70 [iwlmvm] [156616.497628] iwl_mvm_phy_ctxt_apply.constprop.3+0x114/0x1c0 [iwlmvm] [156616.497634] ? iwl_mvm_bt_coex_notif_handle+0x134/0x1e0 [iwlmvm] [156616.497640] iwl_mvm_phy_ctxt_changed+0x22/0x30 [iwlmvm] [156616.497644] iwl_mvm_change_chanctx+0x79/0xc0 [iwlmvm] [156616.497664] ieee80211_recalc_chanctx_min_def+0x179/0x320 [mac80211] [156616.497676] ieee80211_assign_vif_chanctx+0x21b/0x4b0 [mac80211] [156616.497687] ieee80211_vif_use_channel+0x178/0x2c0 [mac80211] [156616.497698] ieee80211_prep_connection+0x196/0x850 [mac80211] [156616.497709] ? __sdata_info+0x6f/0xd0 [mac80211] [156616.497721] ieee80211_mgd_auth+0x2a6/0x3b0 [mac80211] [156616.497735] ? cfg80211_get_bss+0x1d6/0x2d0 [cfg80211] [156616.497737] ? _raw_spin_unlock_bh+0x1e/0x20 [156616.497749] ieee80211_auth+0x18/0x20 [mac80211] [156616.497760] cfg80211_mlme_auth+0x101/0x200 [cfg80211] [156616.497770] nl80211_authenticate+0x30b/0x370 [cfg80211] [156616.497773] genl_family_rcv_msg+0x1dd/0x3c0 [156616.497775] ? __alloc_skb+0x9b/0x1e0 [156616.497777] genl_rcv_msg+0x59/0xa0 [156616.497778] ? genl_register_family+0x620/0x620 [156616.497780] netlink_rcv_skb+0xa4/0xc0 [156616.497781] genl_rcv+0x28/0x40 [156616.497782] netlink_unicast+0x18c/0x220 [156616.497783] netlink_sendmsg+0x2f7/0x3b0 [156616.497785] ? aa_sock_msg_perm+0x61/0x150 [156616.497787] sock_sendmsg+0x38/0x50 [156616.497788] ___sys_sendmsg+0x2c2/0x2d0 [156616.497789] ? sock_sendmsg+0x38/0x50 [156616.497790] ? SYSC_sendto+0x101/0x190 [156616.497792] __sys_sendmsg+0x54/0x90 [156616.497793] SyS_sendmsg+0x12/0x20 [156616.497795] entry_SYSCALL_64_fastpath+0x1e/0xad [156616.497796] RIP: 0033:0x7ff4be616237 [156616.497797] RSP: 002b:00007ffcdb86ca38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [156616.497798] RAX: ffffffffffffffda RBX: 00005562bea31f90 RCX: 00007ff4be616237 [156616.497799] RDX: 0000000000000000 RSI: 00007ffcdb86ca70 RDI: 0000000000000007 [156616.497800] RBP: 00005562bea32470 R08: 0000000000000000 R09: 0000000000000004 [156616.497800] R10: 00005562bea43c70 R11: 0000000000000246 R12: 0000000000000001 [156616.497801] R13: 00007ffcdb86cdc8 R14: 00005562bea326f0 R15: 0000000000000000 [156616.497803] iwlwifi 0000:02:00.0: PHY ctxt cmd error. ret=-5 [156616.497807] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5 [156616.497809] iwlwifi 0000:02:00.0: failed to update MAC e8:2a:ea:d4:16:6f [156616.497813] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5 [156616.497814] iwlwifi 0000:02:00.0: failed to update MAC e8:2a:ea:d4:16:6f [156616.497842] BUG: unable to handle kernel NULL pointer dereference at 000000000000011c [156616.497881] IP: iwl_mvm_add_sta+0x4a1/0x720 [iwlmvm] [156616.497898] PGD 0 [156616.497914] Oops: 0000 [#1] SMP [156616.497925] Modules linked in: veth rfcomm cpuid ccm nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter overlay xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat libcrc32c nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep nls_iso8859_1 arc4 asus_nb_wmi asus_wmi sparse_keymap intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp uvcvideo kvm_intel videobuf2_vmalloc videobuf2_memops iwlmvm videobuf2_v4l2 btusb kvm mac80211 btrtl videobuf2_core irqbypass btbcm crct10dif_pclmul snd_hda_codec_hdmi crc32_pclmul btintel videodev ghash_clmulni_intel media bluetooth pcbc iwlwifi snd_hda_codec_realtek hid_generic [156616.498147] hid_multitouch cfg80211 snd_hda_codec_generic snd_hda_intel aesni_intel aes_x86_64 crypto_simd snd_hda_codec glue_helper cryptd snd_soc_rt5640 intel_cstate intel_rapl_perf snd_hda_core snd_seq_midi snd_seq_midi_event snd_hwdep snd_soc_rl6231 mei_me mei snd_rawmidi joydev input_leds serio_raw snd_soc_core shpchp lpc_ich snd_compress ac97_bus snd_pcm_dmaengine snd_seq snd_pcm snd_seq_device elan_i2c snd_timer i2c_designware_platform dw_dmac dw_dmac_core i2c_designware_core spi_pxa2xx_platform snd int3406_thermal snd_soc_sst_acpi 8250_dw snd_soc_sst_match int3402_thermal int3400_thermal acpi_als acpi_thermal_rel processor_thermal_device int340x_thermal_zone kfifo_buf mac_hid intel_smartconnect soundcore industrialio intel_soc_dts_iosf asus_wireless parport_pc ppdev lp parport ip_tables [156616.499793] x_tables autofs4 dm_mirror dm_region_hash dm_log hid_logitech_hidpp hid_logitech_dj usbhid psmouse i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm ahci libahci wmi sdhci_acpi sdhci video i2c_hid hid fjes [156616.502491] CPU: 1 PID: 1738 Comm: wpa_supplicant Not tainted 4.10.0-20-generic #22-Ubuntu [156616.503925] Hardware name: ASUSTeK COMPUTER INC. UX301LAA/UX301LAA, BIOS UX301LAA.211 06/05/2015 [156616.505321] task: ffff92b19183ad00 task.stack: ffffaeb141d84000 [156616.506714] RIP: 0010:iwl_mvm_add_sta+0x4a1/0x720 [iwlmvm] [156616.508333] RSP: 0018:ffffaeb141d87680 EFLAGS: 00010293 [156616.509745] RAX: ffff92b19506c920 RBX: 0000000000000000 RCX: 0000000000000000 [156616.511593] RDX: 0000000000000002 RSI: 0000000080000000 RDI: ffff92b1909355a8 [156616.513646] RBP: ffffaeb141d876f0 R08: ffffffffc0cefa38 R09: 0000000000000000 [156616.515950] R10: 0000000000000000 R11: ffff92b19506c030 R12: ffff92b1909355a8 [156616.518280] R13: ffff92b19506c818 R14: 0000000000000000 R15: ffff92b19506c920 [156616.520641] FS: 00007ff4bfd77cc0(0000) GS:ffff92b19ee80000(0000) knlGS:0000000000000000 [156616.522595] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [156616.524943] CR2: 000000000000011c CR3: 0000000212d7e000 CR4: 00000000001406e0 [156616.527349] Call Trace: [156616.529723] ? dev_printk_emit+0x4e/0x70 [156616.532106] iwl_mvm_mac_sta_state+0x2dd/0x5d0 [iwlmvm] [156616.534477] ? dev_err+0x6c/0x90 [156616.536855] drv_sta_state+0x8a/0x420 [mac80211] [156616.539225] sta_info_insert_rcu+0x270/0x630 [mac80211] [156616.541193] sta_info_insert+0xe/0x10 [mac80211] [156616.542820] ieee80211_prep_connection+0x3e9/0x850 [mac80211] [156616.544612] ieee80211_mgd_auth+0x2a6/0x3b0 [mac80211] [156616.546048] ? cfg80211_get_bss+0x1d6/0x2d0 [cfg80211] [156616.547456] ? _raw_spin_unlock_bh+0x1e/0x20 [156616.548705] ieee80211_auth+0x18/0x20 [mac80211] [156616.549950] cfg80211_mlme_auth+0x101/0x200 [cfg80211] [156616.551277] nl80211_authenticate+0x30b/0x370 [cfg80211] [156616.552596] genl_family_rcv_msg+0x1dd/0x3c0 [156616.553843] ? __alloc_skb+0x9b/0x1e0 [156616.555086] genl_rcv_msg+0x59/0xa0 [156616.556374] ? genl_register_family+0x620/0x620 [156616.557621] netlink_rcv_skb+0xa4/0xc0 [156616.558864] genl_rcv+0x28/0x40 [156616.560139] netlink_unicast+0x18c/0x220 [156616.561398] netlink_sendmsg+0x2f7/0x3b0 [156616.562672] ? aa_sock_msg_perm+0x61/0x150 [156616.564046] sock_sendmsg+0x38/0x50 [156616.565278] ___sys_sendmsg+0x2c2/0x2d0 [156616.566521] ? sock_sendmsg+0x38/0x50 [156616.567772] ? SYSC_sendto+0x101/0x190 [156616.569024] __sys_sendmsg+0x54/0x90 [156616.570289] SyS_sendmsg+0x12/0x20 [156616.571540] entry_SYSCALL_64_fastpath+0x1e/0xad [156616.572738] RIP: 0033:0x7ff4be616237 [156616.573935] RSP: 002b:00007ffcdb86ca38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [156616.575138] RAX: ffffffffffffffda RBX: 00005562bea31f90 RCX: 00007ff4be616237 [156616.576382] RDX: 0000000000000000 RSI: 00007ffcdb86ca70 RDI: 0000000000000007 [156616.577578] RBP: 00005562bea32470 R08: 0000000000000000 R09: 0000000000000004 [156616.578767] R10: 00005562bea43c70 R11: 0000000000000246 R12: 0000000000000001 [156616.579985] R13: 00007ffcdb86cdc8 R14: 00005562bea326f0 R15: 0000000000000000 [156616.581222] Code: 47 14 00 00 00 00 83 fb 09 4d 89 3f 4d 89 7f 08 49 c7 c0 38 fa ce c0 41 c7 47 10 00 00 00 00 49 8b 8d 60 11 00 00 be 00 00 00 80 <0f> b6 84 11 1a 01 00 00 0f b6 92 59 78 ce c0 89 5c 24 08 44 89 [156616.582501] RIP: iwl_mvm_add_sta+0x4a1/0x720 [iwlmvm] RSP: ffffaeb141d87680 [156616.583782] CR2: 000000000000011c [156616.591821] ---[ end trace 5fa257b8d2399229 ]---