From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from [208.74.158.174] (helo=mail3.candelatech.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hP5yX-0005AV-0W for ath10k@lists.infradead.org; Fri, 10 May 2019 13:54:14 +0000 Subject: Re: ath10k: wmi service ready event not received References: From: Ben Greear Message-ID: <6e530d73-91e9-faaf-31d0-cd5fadc66ffc@candelatech.com> Date: Fri, 10 May 2019 06:54:11 -0700 MIME-Version: 1.0 In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Linus Torvalds , Kalle Valo Cc: ath10k@lists.infradead.org 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 Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k