Bugzilla – Full Text Bug Listing
|Summary:||kernel trace: WARNING: CPU: 7 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x248/0x250|
|Product:||[openSUSE] openSUSE Tumbleweed||Reporter:||Dan Čermák <dcermak>|
|Component:||Kernel||Assignee:||E-mail List <kernel-maintainers>|
|Status:||RESOLVED FIXED||QA Contact:||E-mail List <qa-bugs>|
|Priority:||P5 - None||CC:||dcermak, denis.kirjanov, tiwai|
|Found By:||---||Services Priority:|
|Marketing QA Status:||---||IT Deployment:||---|
kernel trace from journald
kernel log from journalctl
Description Dan Čermák 2019-08-23 09:28:36 UTC
Comment 1 Takashi Iwai 2019-08-26 08:47:51 UTC
Is this a regression? i.e. if you reboot with the old kernel, doesn't it happen? Also it's reproducible?
Comment 2 Dan Čermák 2019-08-26 11:25:30 UTC
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).
Comment 3 Dan Čermák 2019-08-26 11:26:22 UTC
Created attachment 815707 [details] kernel log from journalctl
Comment 4 Takashi Iwai 2019-08-26 12:08:03 UTC
Please try to install kernel-firmware.rpm from OBS Kernel:HEAD repo.
Comment 5 Dan Čermák 2019-08-27 07:56:17 UTC
I've installed 5.3.0-rc6-1.g2831011-default and kernel-firmware-20190815-277.1.noarch from Kernel:Head and WiFi works now.
Comment 6 Takashi Iwai 2019-08-27 08:31:49 UTC
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.
Comment 7 Denis Kirjanov 2019-08-29 12:16:13 UTC
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
Comment 8 Denis Kirjanov 2019-08-29 12:17:00 UTC
In my understanding you're using a Dell docking station, right?
Comment 9 Dan Čermák 2019-09-02 07:26:17 UTC
(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.
Comment 10 Dan Čermák 2019-09-02 07:26:48 UTC
(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.
Comment 11 Takashi Iwai 2019-09-02 13:11:24 UTC
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.
Comment 12 Dan Čermák 2019-09-02 13:57:40 UTC
(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.
Comment 13 Takashi Iwai 2019-09-02 13:59:11 UTC
OK, then let's assume that it's been already addressed. Feel free to reopen if you still see the very same problem. Thanks.