On 05/10/2019 05:28 AM, Linus Torvalds wrote:
Hmm. I have a nice new laptop, and it works fine. Except today it lost wireless, and I have no idea why. It's not happened before (but it's fairly new and I'm actually on my first trip with it), so I don't know how common this is, but the kernel messages seem to say that the cause of it was ath10k_pci 0000:02:00.0: wmi service ready event not received ath10k_pci 0000:02:00.0: could not init core (-110) ath10k_pci 0000:02:00.0: could not probe fw (-110) and then nothing works. -110 is ETIMEDOUT, fwiw. Rebooting got wireless back. It's possible I could have done something less drastic, but I was thinking that it would be the new kernel and rebooted into an older version. But then rebooting into the new one afterwards (double-checking before starting a bisect) and it all worked. Is there anything I can do to debug this if it happens again?
Please provide 'lspci' or other info on the NIC chipset, for reference. Sometimes a work-around is: rmmod ath10k_pci ath10k_core; modprobe ath10k_pci Sometimes you will get a firmware register dump in this crash case, and then someone from QCA might can get a backtrace if you post that with the chipset info and such (or if it is one of the NICs my ath10k-ct firmware supports and you can reproduce an issue with that firmware, then I can debug it). Thanks, Ben -- Ben Greear <gree...@candelatech.com> Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k
