#9654: ath: DMA failed to stop in 10 ms
------------------------+-----------------------------------
Reporter: anonymous | Owner: nbd
Type: defect | Status: reopened
Priority: normal | Milestone: Barrier Breaker 14.07
Component: kernel | Version: Trunk
Resolution: | Keywords: atheros
------------------------+-----------------------------------
Comment (by bittorf@…):
still happening with r45474 on TP-LINK TL-WR1043ND
{{{
[ 9665.320000] ath: phy0: Failed to stop TX DMA, queues=0x002!
[15036.200000] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x42000020 DMADBG_7=0x000286c0
[15036.210000] ath: phy0: Could not stop RX, we could be confusing the DMA
engine when we start RX up
[15036.220000] ------------[ cut here ]------------
[15036.230000] WARNING: CPU: 0 PID: 16991 at
/home/bastian/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-
ar71xx_generic/compat-
wireless-2015-03-09/drivers/net/wireless/ath/ath9k/recv.c:502
ath_stoprecv+0x108/0x138c [ath9k]()
[15036.250000] Modules linked in: ath9k ath9k_common pppoe ppp_async
iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6
nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time
xt_tcpudp xt_tcpmss xt_statistic xt_state xt_nat xt_multiport xt_mark
xt_mac xt_limit xt_length xt_id xt_hl xt_ecn xt_dscp xt_conntrack
xt_comment xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_DSCP xt_CT
xt_CLASSIFY slhc nf_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat_irc
nf_nat_ftp nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4
nf_conntrack_rtcache nf_conntrack_irc nf_conntrack_ftp nf_conntrack
macvlan iptable_raw iptable_mangle iptable_filter ipt_ECN ip_tables
crc_ccitt compat sch_tbf sch_sfq sch_red sch_prio sch_htb sch_gred
sch_dsmark sch_codel em_text em_nbyte em_meta em_cmp cls_basic act_police
act_ipt act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow
cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables tun zram lz4_decompress lz4_compress
ipv6 arc4 crypto_blkcipher lzo_compress lzo_decompress zsmalloc
ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[15036.360000] CPU: 0 PID: 16991 Comm: kworker/u2:0 Not tainted 3.18.11 #7
[15036.360000] Workqueue: phy0 ath_reset_work [ath9k]
[15036.370000] Stack : 00000001 00000000 817e6280 803046fc 80a74944
80a66fdc 000001f6 818cc2dc
[15036.370000] 818cc038 80902b04 00000088 800a3400 0000425f 80096130
818db790 818cc2dc
[15036.370000] 80315358 8152fcfc 8152fcfc 800a3400 00000003 80093b20
000001f6 00000000
[15036.370000] 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[15036.370000] 70687930 00000000 00000000 00000000 00000000 00000000
80944500 80944600
[15036.370000] ...
[15036.400000] Call Trace:
[15036.410000] [<80070fd8>] show_stack+0x48/0x70
[15036.410000] [<8008044c>] warn_slowpath_common+0x84/0xb4
[15036.420000] [<80080504>] warn_slowpath_null+0x18/0x24
[15036.420000] [<80a66fdc>] ath_stoprecv+0x108/0x138c [ath9k]
[15036.430000] [<80a62834>] ath9k_deinit_device+0x2c0/0x908 [ath9k]
[15036.430000] [<80a64d1c>] ath9k_calculate_summary_state+0x5e4/0x728
[ath9k]
[15036.440000]
[15036.440000] ---[ end trace ec016c6c595d9a60 ]---
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/9654#comment:547>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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