Created attachment 1511510 [details] dmesg log cut-out I have a Dell Latitude 7350 with an Intel Wireless-AC 7265 adapter. Wi-Fi works as expected after the system is booted, until it is first suspended. When the system resumes, the iwlwifi driver throws this kernel warning (dmesg cut-out is attached): Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Then Wi-Fi will no longer works until the system is rebooted; unloading and reloading the iwlmvm/iwlwifi modules does not seem to help anything. This behavior is fully consistent when using any kernel version 4.19.y packaged for Fedora 28 (including 4.19.6-200 in updates-testing). By downgrading to kernel version 4.18.18, the problem completely disappears.
Kernel package maintainers: Please let me know what additional information you need to triage this issue. If you would prefer I can try to reproduce this with Fedora 29, Fedora Rawhide, and/or Arch Linux using a live DVD. I'm finding this regression to be disruptive for day-to-day use of my laptop. I have to reboot it any time it goes to sleep. I'm honestly surprised I haven't come across other reports of this yet, because the Intel Wi-Fi chipset is very common. Thank you.
This is upstream bug 201469, and it persists in kernel 4.20.
The fix has been committed upstream for inclusion in Linux 5.1, and has already landed in stable releases Linux 5.0.4 and Linux 4.19.31. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/pci/probe.c?id=10ecc818ea7319b5d0d2b4e1aa6a77323e776f76 Currently, Fedora 29 has kernel 5.0.3 in updates-testing. Please bump to 5.0.4.