Kernel panic and boot failures with QCA9377
Leonardo Soares Müller
leozinho29_eu at hotmail.com
Fri Oct 6 08:07:06 PDT 2017
Hi
I am having trouble with my Lenovo Ideapad 310-14ISK with a QCA9377,
which occasionally fails when booting the system. Most of the times, the
system hangs on boot with many messages like:
usb 1-7: device descriptor read/64, error -71
One single time, a kernel panic happened too. I have took a photo of the
screen: https://i.imgur.com/dentZtR.jpg
To trigger this bug it's easy, but unpredictable: just shutdown the
system. If the following message (redacted, the MAC address is from the
router) appears when shutting down:
[7087.692313] wlp2s0: failed to remove key (0, xx:xx:xx:xx:xx:xx) from
hardware (-110)
Then on the next boot the system will hang at boot time. Then I keep the
power button pressed until the notebook turn off and then I turn it on
again and then it works. The other alternative is to reboot to Windows
10 and then turn it off.
From lspci:
02:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless
Network Adapter (rev 30)
From lsusb:
Bus 001 Device 004: ID 0cf3:e360 Atheros Communications, Inc.
From powertop:
Auto-suspensão para dispositivo USB desconhecido 1-7 (0cf3:e360)
Now I'm using Xubuntu 17.04 with the kernel version 4.10.0-35 (the
latest stable version available now). The atheros firmware is in the
latest version.
Is there something I can do to make the QCA9377 not cause system hangs?
Now it's more like a lottery if it will work or not.
Thank you.
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