> -----Original Message----- > From: [email protected] [mailto:platform-driver-x86- > [email protected]] On Behalf Of Paul Menzel > Sent: Tuesday, February 6, 2018 10:08 AM > To: Limonciello, Mario <[email protected]> > Cc: Pali Rohár <[email protected]>; [email protected]; > [email protected]; [email protected] > Subject: Re: dell-smbios makes wireless card unusable on Dell XPS 13 9360 > > Dear Mario, > > > On 02/06/18 16:58, [email protected] wrote: > > >> -----Original Message----- > >> From: Paul Menzel [mailto:[email protected]] > >> Sent: Tuesday, February 6, 2018 9:50 AM > >> To: Pali Rohár <[email protected]>; Limonciello, Mario > >> <[email protected]>; [email protected] > >> Cc: [email protected]; Linux Kernel Mailing List <linux- > >> [email protected]> > >> Subject: dell-smbios makes wireless card unusable on Dell XPS 13 9360 > > >> Adding `dell-smbios` to `/etc/modules` on the Dell XPS 13 9360, it seems > >> to badly effect the Wireless LAN device, causing it to be absent or to > >> not work. > >> > >> In one case, the whole system lagged, that means, the log in screen > >> stayed grayed out for 15 seconds, and the mouse pointer stopped moving > >> every 20(?) seconds for some seconds. > > > > Can you please confirm if you're indicating this is a regression in 4.15? > > Or was this present in earlier kernels too? > > Yes, it happened with Ubuntu’s 4.13 too. My original message had one log > attached where the Wifi wasn’t visible at all. >
Looking at that log it looks to me that the ath10k firmware crashed, not that dell-smbios lagging caused the crash. [ 15.262226] ath10k_pci 0000:3a:00.0: firmware crashed! (uuid a6c40788-b7ad-4f6a-890a-62e62c1f6e5f) [ 15.262233] ath10k_pci 0000:3a:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:1535 [ 15.262235] ath10k_pci 0000:3a:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0 [ 15.262645] ath10k_pci 0000:3a:00.0: firmware ver WLAN.RM.4.4-00022-QCARMSWPZ-2 api 6 features wowlan,ignore-otp crc32 4d458559 [ 15.262941] ath10k_pci 0000:3a:00.0: board_file api 2 bmi_id N/A crc32 0e26ef70 [ 15.262943] ath10k_pci 0000:3a:00.0: htt-ver 0.0 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 [ 15.274887] ath10k_pci 0000:3a:00.0: failed to get memcpy hi address for firmware address 4: -16 [ 15.274900] ath10k_pci 0000:3a:00.0: failed to read firmware dump area: -16 [ 15.274909] ath10k_pci 0000:3a:00.0: Copy Engine register dump: Do you have a strong correlation with dell-smbios loading and the wireless firmware crashing? You're the first account I've heard of this. Also why are you putting it in /etc/modules rather than letting the udev rules load from modaliases? Or did you artificially prevent that in some way?
