Join Log in
Score:0
Minh Hieu avatar Ubuntu

AR9485: ath: phy0: Failed to wakeup in 500µs

jp flag
Minh Hieu

Description of the problem:

After the latest upgrade to the kernel 3.6.11-1 I noticed the problem with the following Wifi card type:

03:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
        Subsystem: Samsung Electronics Co Ltd Device 4105
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at f7c00000 (64-bit, non-prefetchable) [size=512K]
        Expansion ROM at f7c80000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 2
        Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel
        Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
        Kernel driver in use: ath9k

In the /var/log/messages it started to dump a lot of messages as following:

[98739.471337] ath: phy0: Failed to wakeup in 500us

[98739.581268] ath: phy0: Failed to wakeup in 500us

[98739.691165] ath: phy0: Failed to wakeup in 500us

[98739.701760] ath: phy0: Failed to wakeup in 500us

[98739.712877] ath: phy0: DMA failed to stop in 10 ms

AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff

[98739.712897] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up

[98739.773400] ath: phy0: Failed to stop TX DMA, queues=0x10f!

[98739.884046] ath: phy0: Chip reset failed

[98739.884050] ath: phy0: Unable to reset channel, reset status -22

I have find that in google and nothing really can fix that. I have see this in this web Red Hat Bugzilla – Bug 892811 AR9485: ath: phy0: Failed to wakeup in 500us... the file debug, but I don't know how to use. Any support will make me feel appreciated. Thanks.

136
0 + 2
guiverc avatar
cn flag
guiverc
You've provided no release details; however the oldest *standard* supported kernel is 4.15, so the 3.6 implies a EOL & thus off-topic release. Please refer to https://askubuntu.com/help/on-topic and note only *standard* level supported releases are on-topic here. Bug reporting should be reported on launchpad or the bug tracker https://help.ubuntu.com/community/ReportingBugs
1
Reply
guiverc avatar
cn flag
guiverc
No Ubuntu release used the 3.6 kernel it turns out, it was only offered briefly as a *testing* kernel - a list of kernels & releases can be found at https://askubuntu.com/questions/517136/list-of-ubuntu-versions-with-corresponding-linux-kernel-version
0
Reply
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.