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Hello.
I have an old (and odd) problem with my laptop. It randomly crashes.
When it crashes, the screen freezes, nothing responds to input, and the sound is on a ~1 second loop (for example, if i am watching a video on youtube, the screen will freeze and the last second of audio will replay over and over. After a little while, the laptop will reboot.
While the problem does not appear to be arch-related(same happens on Ubuntu or Windows), i cannot find what the problem is.
The odd thing is that this problem is present for more than a year. But when i use the laptop connected to a keyboard +monitor + cable for internet, it will NOT crash. It will work just fine.
I was suspecting the wireless card, but crashing happens even with the wireless card deactivated from the cinnamon applet.
Here is a systemd log right before the laptop rebooted:
Sep 29 20:56:43 BugsBunnyARCH systemd[1]: Starting Cleanup of Temporary Directories...
Sep 29 20:56:44 BugsBunnyARCH systemd[1]: Started Cleanup of Temporary Directories.
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: Failed to stop TX DMA, queues=0x008!
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: Chip reset failed
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: Unable to reset channel, reset status -22
Sep 29 21:48:49 BugsBunnyARCH NetworkManager[402]: <warn> Connection disconnected (reason -4)
Sep 29 21:48:49 BugsBunnyARCH kernel: cfg80211: Exceeded CRDA call max attempts. Not calling CRDA
Sep 29 21:48:49 BugsBunnyARCH NetworkManager[402]: <info> (wlp3s0): supplicant interface state: completed -> disconnected
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Sep 29 21:48:49 BugsBunnyARCH kernel: ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
Sep 29 21:48:50 BugsBunnyARCH NetworkManager[402]: <info> (wlp3s0): supplicant interface state: disconnected -> scanning
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Chip reset failed
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Unable to reset channel, reset status -22
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Chip reset failed
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Unable to reset channel, reset status -22
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Chip reset failed
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Unable to reset channel, reset status -22
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Sep 29 21:48:50 BugsBunnyARCH kernel: ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
-- Reboot --From what I could find, people getting similar error were unable to connect to wireless networks, but not crashes..
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I have once seen a laptop where wireless card didn't work in Windows and crashed Linux. I suppose it was hardware failure. Here definitely something is wrong either with the card itself or the driver.
I'd check if Windows stops crashing if you disable the card in Device Manager or physically remove it from the machine. The chance that both Windows and Linux have similar driver bugs undetected for a year is slim.
Last edited by mich41 (2015-09-30 11:14:16)
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