The updated firmware used in the bionic branch of the linux-firmware packages git repo seems to fix this problem entirely for me.
** Changed in: linux-firmware (Ubuntu) Status: New => Confirmed -- 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