代码: 全选
ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: phy0: Chip reset failed
ath: phy0: Unable to reset channel, reset status -22
ath: phy0: Unable to set channel
另外同一台机器上的Windows7也有无故断线问题,症状极其相似,而且通常要重启2-5次才能恢复正常。
目前没搜到靠谱的讨论。谁遇到了来讨论一下?
故障重现方法:
0-开机,连接无线
1-把笔记本搬离无线路由器10米开外
2-观察
俺的无线网卡信息:
代码: 全选
*-network
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express) [168C:2B]
vendor: Qualcomm Atheros [168C]
physical id: 0
bus info: pci@0000:06:00.0
logical name: wlan0
version: 01
serial: 00:08:ca:c0:08:6b
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.13.0-37-generic firmware=N/A ip=192.168.0.103 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:19 memory:fe800000-fe80ffff
代码: 全选
3.13.0-37-generic