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Opened 3 years ago

#17860 new defect

Nanostation M5 wlan deadlock

Reported by: anonymous Owned by: developers
Priority: high Milestone: Barrier Breaker 14.07
Component: kernel Version: Barrier Breaker 14.07
Keywords: Cc:

Description

[ 1651.170000] ------------[ cut here ]------------
[ 1651.170000] WARNING: at /usr/src/openwrt-ar71xx/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/compat-wireless-2014-05-22/drivers/net/wireless/ath/ath9k/recv.c:543 ath_rx_tasklet+0x7d0/0xac8 [ath9k]()
[ 1651.170000] Modules linked in: ath9k ath9k_common pppoe ppp_async option iptable_nat ath9k_hw ath usb_wwan pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 cfg80211 xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_id xt_hl xt_helper xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY usbserial ts_kmp ts_fsm ts_bm slhc nf_nat_irc nf_nat_ftp nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ipt_ECN ip_tables crc_ccitt compat sch_teql sch_tbf sch_sfq sch_red sch_prio sch_netem sch_htb sch_gred sch_dsmark sch_codel em_text em_nbyte em_meta em_cmp cls_basic act_police act_ipt act_connmark act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev ip6t_NPT ip6t_MASQUERADE ip6table_nat nf_nat_ipv6 nf_nat ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ifb nat46 ipip tunnel4 ip_tunnel tun zram lzo_decompress lzo_compress zsmalloc ipv6 arc4 crypto_blkcipher ohci_hcd ehci_platform ehci_hcd sd_mod scsi_mod gpio_button_hotplug usbcore nls_base usb_common
[ 1651.170000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.49 #1
[ 1651.170000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000032 803415c0 80de9d70
[ 1651.170000] 802f7c64 803419eb 00000000 803b3a00 803415c0 80de9d70 81882010 81882030
[ 1651.170000] 00000001 802924f0 00000003 801f4f88 80dd5914 80de9d70 802f92f4 80331c1c
[ 1651.170000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1651.170000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 80331ba8
[ 1651.170000] ...
[ 1651.170000] Call Trace:
[ 1651.170000] [<802371c4>] show_stack+0x48/0x70
[ 1651.170000] [<802a1f00>] warn_slowpath_common+0x78/0xa8
[ 1651.170000] [<802a1fb8>] warn_slowpath_null+0x18/0x24
[ 1651.170000] [<80dc6c64>] ath_rx_tasklet+0x7d0/0xac8 [ath9k]
[ 1651.170000] [<80dc437c>] ath9k_tasklet+0x23c/0x2c8 [ath9k]
[ 1651.170000] [<8025aa34>] tasklet_action+0x84/0xcc
[ 1651.170000] [<8008fde8>] do_softirq+0xd0/0x1bc
[ 1651.170000] [<80120b2c>] do_softirq+0x48/0x68
[ 1651.170000] [<80180120>] irq_exit+0x54/0x70
[ 1651.170000] [<80060830>] ret_from_irq+0x0/0x4
[ 1651.170000] [<80060a80>]
r4k_wait+0x20/0x40
[ 1651.170000] [<800fa2c0>] cpu_startup_entry+0xa4/0x104
[ 1651.170000] [<8034e918>] start_kernel+0x394/0x3ac
[ 1651.170000]
[ 1651.170000] ---[ end trace c5cd245d3a52021e ]---

DFS is compiled in...

Wlan stays up for 30 mins, to an hour, abruptly disconnects and won't reconnect until a reboot occurs - reproducible on that device.

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