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FS#2850 - DMA failed to stop in 10 ms // ath79 #7719

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openwrt-bot opened this issue Feb 23, 2020 · 2 comments
Closed

FS#2850 - DMA failed to stop in 10 ms // ath79 #7719

openwrt-bot opened this issue Feb 23, 2020 · 2 comments
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With latest ath79 nightly builds I experience following DMA stop issues:

Sat Feb 22 17:23:20 2020 kern.err kernel: [632573.433252] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42100020 DMADBG_7=0x000286c0 Sun Feb 23 13:08:07 2020 kern.err kernel: [703659.667843] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42100020 DMADBG_7=0x000286c0

OpenWrt:~# uname -a
Linux OpenWrt 4.19.101 #0 Fri Feb 14 13:10:51 2020 mips GNU/Linux

OpenWrt SNAPSHOT, r12234-7d7aa2fd92

Device is TP-Link tl-wr1043nd-v1.
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Issue present with latest build too

OpenWrt SNAPSHOT, r12320-3660a89cb9

@openwrt:~# uname -a
Linux OpenWrt 4.19.106 #0 Tue Feb 25 16:50:46 2020 mips GNU/Linux

@openwrt:~# logread | grep -i dma
Wed Feb 26 19:14:07 2020 kern.err kernel: [45830.964452] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42100020 DMADBG_7=0x000084c0

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yousong:

Did it also happen to have "Data bus error" in the log output? I got a similar error while ago. See https://bugs.openwrt.org/index.php?do=details&task_id=1720

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