#20598: Wi-Fi stops working on Alix 3D3 + R52n-M
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Reporter: mario_lopes | Owner: developers
Type: defect | Status: new
Priority: highest | Milestone: Chaos Calmer 15.05
Component: kernel | Version: Trunk
Resolution: | Keywords:
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Comment (by mario_lopes):
At r47440 another error appeared:
{{{
[ 7193.089914] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x42100020 DMADBG_7=0x000062c0
[ 7232.499058] spurious 8259A interrupt: IRQ7.
}}}
In this case, Wi-Fi was limited, via iw command, to MCS0 and 20 MHz BW,
taking longer to crash than in higher phy rates.
Doing "cat /sys/kernel/debug/ieee80211/phy0/ath9k/interrupt" on all nodes
and issuing "wifi" command on that node which as increasing "Local-Bus-
Timeout", network starts working again untill next crash.
--
Ticket URL: <https://dev.openwrt.org/ticket/20598#comment:2>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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