Here is another confirmation of this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1490172
and downgrading to a previous version of linux-firmware (as suggested above, and to xenial-updates in my case), made the problem disappear: $ dpkg -l | grep linux-firmware ii linux-firmware 1.157.13 all Firmware for Linux kernel drivers ** Bug watch added: Red Hat Bugzilla #1490172 https://bugzilla.redhat.com/show_bug.cgi?id=1490172 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1730331 Title: ath10k_pci: firmware crashed! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1730331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs