Package: firmware-atheros Version: 20161130-3 Hardware: PCI-E Qualcomm Atheros QCA986x/988x 802.11ac Wireless Network Debian version: 9.1 (stretch)
After some time (random) AP network disappear, and kernel dmesg shows following error: [117022.111779] ath10k_pci 0000:01:00.0: SWBA overrun on vdev 0, skipped old beacon [117023.135847] ath10k_pci 0000:01:00.0: SWBA overrun on vdev 0, skipped old beacon [117023.778177] ath10k_pci 0000:01:00.0: failed to install key for vdev 0 peer 4c:66:41:c6:df:a4: -11 [117023.778180] wlp1s0: failed to remove key (0, 4c:66:41:c6:df:a4) from hardware (-11) [117024.103842] ath10k_pci 0000:01:00.0: cipher 0 is not supported [117024.103845] ath10k_pci 0000:01:00.0: failed to remove peer wep key 0: -95 [117024.103846] ath10k_pci 0000:01:00.0: failed to clear all peer wep keys for vdev 0: -95 [117024.103848] ath10k_pci 0000:01:00.0: failed to disassociate station: 4c:66:41:c6:df:a4 vdev 0: -95 [117024.103876] ------------[ cut here ]------------ [117024.103902] WARNING: CPU: 0 PID: 1444 at /build/linux-RdeW6Z/linux-4.12.13/net/mac80211/sta_info.c:961 __sta_info_destroy_part2+0xdf/0x110 [mac80211] [117024.103903] Modules linked in: cmac ctr ccm ebtable_filter ebtables arc4 bridge stp llc sit tunnel4 ip_tunnel nf_log_ipv6 xt_hl ip6t_REJECT nf_reject_ipv6 ip6t_rt ip6table_filter ip6table_mangle ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6_tables ts_bm xt_time nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_mac ipt_REJECT nf_reject_ipv4 xt_string xt_multiport xt_owner xt_conntrack xt_recent iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_nat iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat xt_tcpudp xt_DSCP iptable_mangle binfmt_misc nls_ascii nls_cp437 vfat fat iTCO_wdt iTCO_vendor_support ath10k_pci ath10k_core intel_rapl evdev x86_pkg_temp_thermal intel_powerclamp ath snd_hda_codec_hdmi kvm_intel kvm mac80211 irqbypass snd_hda_codec_realtek crct10dif_pclmul [117024.103943] snd_hda_codec_generic crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec cfg80211 intel_cstate snd_hda_core efi_pstore snd_hwdep rfkill intel_uncore snd_pcm intel_rapl_perf snd_timer pcspkr snd efivars lpc_ich sg soundcore mfd_core mei_me shpchp mei i915 drm_kms_helper battery drm i2c_algo_bit ie31200_edac video button nct6775 hwmon_vid coretemp nf_conntrack_ftp nf_conntrack libcrc32c sunrpc loop efivarfs ip_tables x_tables autofs4 ext4 crc16 jbd2 fscrypto ecb crypto_simd cryptd glue_helper aes_x86_64 mbcache btrfs crc32c_generic xor raid6_pq sd_mod ahci libahci crc32c_intel libata scsi_mod i2c_i801 xhci_pci ehci_pci xhci_hcd ehci_hcd e1000e ptp pps_core usbcore usb_common fan thermal [117024.103994] CPU: 0 PID: 1444 Comm: hostapd Not tainted 4.12.0-0.bpo.2-amd64 #1 Debian 4.12.13-1~bpo9+1 [117024.103995] Hardware name: /DQ77KB, BIOS KBQ7710H.86A.0059.2017.0526.1645 05/26/2017 [117024.103996] task: ffff9c8a8706b100 task.stack: ffffb010026a0000 [117024.104013] RIP: 0010:__sta_info_destroy_part2+0xdf/0x110 [mac80211] [117024.104014] RSP: 0018:ffffb010026a3a78 EFLAGS: 00010282 [117024.104016] RAX: 00000000ffffffa1 RBX: ffff9c8a86e53000 RCX: 0000000000000000 [117024.104017] RDX: ffff9c8a8706b100 RSI: 0000000000000096 RDI: ffff9c8a8aaf2420 [117024.104018] RBP: ffff9c8a8aaf0780 R08: 0000000000000001 R09: 0000000000000391 [117024.104019] R10: ffffb010026a3950 R11: 0000000000000391 R12: ffff9c8a87a128c0 [117024.104020] R13: ffffb010026a3ac8 R14: ffff9c8a8aaf0000 R15: ffff9c8a861cc000 [117024.104022] FS: 00007f3d46dc4540(0000) GS:ffff9c8a9e200000(0000) knlGS:0000000000000000 [117024.104023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [117024.104024] CR2: 00007f2bd300cd00 CR3: 0000000407d7d000 CR4: 00000000001406f0 [117024.104026] Call Trace: [117024.104044] ? __sta_info_destroy+0x27/0x40 [mac80211] [117024.104059] ? sta_info_destroy_addr_bss+0x33/0x50 [mac80211] [117024.104081] ? nl80211_del_station+0xdf/0x1f0 [cfg80211] [117024.104086] ? genl_family_rcv_msg+0x1e0/0x380 [117024.104090] ? compat_poll_select_copy_remaining+0x120/0x120 [117024.104093] ? genl_rcv_msg+0x47/0x90 [117024.104095] ? genl_family_rcv_msg+0x380/0x380 [117024.104097] ? netlink_rcv_skb+0xe7/0x120 [117024.104100] ? genl_rcv+0x24/0x40 [117024.104102] ? netlink_unicast+0x184/0x230 [117024.104104] ? netlink_sendmsg+0x2b8/0x3a0 [117024.104107] ? sock_sendmsg+0x30/0x40 [117024.104109] ? ___sys_sendmsg+0x2d7/0x2f0 [117024.104114] ? ktime_get_ts64+0x49/0xe0 [117024.104116] ? __sys_sendmsg+0x51/0x90 [117024.104118] ? __sys_sendmsg+0x51/0x90 [117024.104122] ? system_call_fast_compare_end+0xc/0x97 [117024.104123] Code: ff 48 89 ef e8 b3 e8 86 e7 48 8b 43 50 48 89 df 48 8b a8 f8 03 00 00 e8 40 ca ff ff 48 89 de 48 89 ef 5b 5d 41 5c e9 41 df ff ff <0f> ff 80 bb 0c 01 00 00 00 74 86 45 31 c0 b9 01 00 00 00 48 89 [117024.104157] ---[ end trace 6f68f2eec96cc98c ]--- Downgrading firmware to: 10.1.467.3-1 resolves the issue.