With the recent updates, including: kernel 5.4.0-40-generic x86_64 and (I suspect) wpasupplicant 2:2.9-1ubuntu4.1 The behaviour has changed: on channel switch the log files no longer grow endlessly but there is still no attempt to reconnect to another SSID nor notification that the connection is lost. Instead the system basically freezes and it's impossible to manually disconnect the wifi.
** Attachment added: "syslog_part" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881214/+attachment/5389056/+files/syslog_part -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1881214 Title: Intel Wireless 8260 [8086:24f3] Subsystem [8086:1010] on channel switch, iwlwifi Microcode SW Error: FW error in SYNC CMD CHANNEL_SWITCH_TIME_EVENT_CMD Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu Mate 20.04, with all supplied kernels up to 5.4.0.33 I occasionally see a message on my screen that disk space is low. I try rebooting since my computer is unresponsive. Normal reboot does not work, sudo reboot does not work. I have to power off the machine using power button. Machine boots but hangs because its trying to repair journal info. I can't see what causes that since I was not using my computer at the time. edit: see comment #14 So with a live session, I can see that syslog and kern.log files have grown to several GB until the drive is full. When using an upstream kernel 5.4.43-050443-generic x86_64, I haven't had any problem so far. edit: not true actually, this happened again using this upstream kernel. Never had this issue with previous Ubuntu versions with the very same hardware configuration, since 16.04. Included: partial syslog and kern.log with the same message repeated over and over. edit: and when the event starts. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881214/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp