Bugzilla – Bug 1147032
kernel trace: WARNING: CPU: 7 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x248/0x250
Last modified: 2019-09-02 13:59:11 UTC
Created attachment 815409 [details] kernel trace from journald I've found the attached kernel trace after rebooting today with the newest Tumbleweed snapshot. $ uname -a Linux Boreas 5.2.8-1-default #1 SMP Fri Aug 9 17:51:51 UTC 2019 (bf37e83) x86_64 x86_64 x86_64 GNU/Linux $ lpci 00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07) 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 07) 00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model 00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10) 00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) 00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10) 00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10) 00:15.1 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #1 (rev 10) 00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10) 00:17.0 SATA controller: Intel Corporation Cannon Lake Mobile PCH SATA AHCI Controller (rev 10) 00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #17 (rev f0) 00:1c.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #1 (rev f0) 00:1c.4 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #5 (rev f0) 00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0) 00:1f.0 ISA bridge: Intel Corporation Device a30e (rev 10) 00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10) 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10) 00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10) 01:00.0 3D controller: NVIDIA Corporation GP107GLM [Quadro P1000 Mobile] (rev ff) 02:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:01.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:02.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 3a:00.0 USB controller: Intel Corporation JHL6340 Thunderbolt 3 USB 3.1 Controller (C step) [Alpine Ridge 2C 2016] (rev 02) 3b:00.0 Network controller: Intel Corporation Wireless-AC 9260 (rev 29) 3c:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01) 3d:00.0 Non-Volatile memory controller: SK hynix Device 1527 Hardware: Dell Precision 5530
Is this a regression? i.e. if you reboot with the old kernel, doesn't it happen? Also it's reproducible?
Unfortunately yesterday's update already remove the older kernel, so I can no longer test that one. The new kernel (5.2.9) on the other hand completely killed wifi on my laptop (see the attached log file).
Created attachment 815707 [details] kernel log from journalctl
Please try to install kernel-firmware.rpm from OBS Kernel:HEAD repo.
I've installed 5.3.0-rc6-1.g2831011-default and kernel-firmware-20190815-277.1.noarch from Kernel:Head and WiFi works now.
OK, then try the kernel in OBS Kernel:stable (5.2.10), too. This should work as well with the latest kernel-firmware package. The current TW kernel (5.2.9) seems problematic with the latest kernel-firmware, though.
Hm, could you please check the driver from the Realtek website? https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software
In my understanding you're using a Dell docking station, right?
(In reply to Takashi Iwai from comment #6) > OK, then try the kernel in OBS Kernel:stable (5.2.10), too. This should > work as well with the latest kernel-firmware package. The current TW kernel > (5.2.9) seems problematic with the latest kernel-firmware, though. kernel-firmware-20190827-279.1.noarch and kernel 5.2.10 work too.
(In reply to Denis Kirjanov from comment #8) > In my understanding you're using a Dell docking station, right? That is correct, but the issue appeared also without it.
And since the update to 5.2.10 + the latest kernel-firmware, is the original issue (the kernel warning from the watchdog) gone? I understand that WiFi issue was resolved, but not sure whether that is the cause.
(In reply to Takashi Iwai from comment #11) > And since the update to 5.2.10 + the latest kernel-firmware, is the original > issue (the kernel warning from the watchdog) gone? I understand that WiFi > issue was resolved, but not sure whether that is the cause. Haven't seen it so far, but I have rebooted only once since the kernel change.
OK, then let's assume that it's been already addressed. Feel free to reopen if you still see the very same problem. Thanks.