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Bug#934781: firmware-iwlwifi: iwl4965: Microcode SW error detected

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Hi,

On Fri, Dec 13, 2019 at 03:29:23PM +1030, Andrew Bettison wrote:
> As an experiment, I downloaded the tarball from https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tag/?h=20190815
> (as recommended in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939262
> ), and manually copied its intel/* and iwlwifi-* files into /lib/firmware
> (overwriting the ones installed by the firmware-iwlwifi package).
> 
> After rebooting kernel 5.3.0-2 (amd64) I still get "iwlwifi: Microcode SW
> error" messages accompanied by "ieee80211 phy0: Hardware restart was
> requested" during periods of high Wi-Fi throughput, but they do not cause
> the Wi-Fi to hang.  So the newer firmware appears to rectify the worst part
> of the problem (Wi-Fi freeze) but does not fully resolve the problem.

Can you perhaps try the current version as well? There's been one additional
change to iwlwifi firmwares since then:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=40e4162adfc91390f6fbbd8269f9439832af1dde

(I haven't tested either, I just downgraded to 20190502-1. Don't have the
mental budget to deal with another broken thing now.)

-- 
Tomáš Janoušek, a.k.a. Pivník, a.k.a. Liskni_si, http://work.lisk.in/

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Bug#934781: firmware-iwlwifi: iwl4965: Microcode SW error detected Celejar <celejar@gmail.com> - 2019-09-09 05:50 +0200
  Bug#934781: firmware-iwlwifi: iwl4965: Microcode SW error detected Celejar <celejar@gmail.com> - 2019-12-13 18:50 +0100
  Bug#934781: firmware-iwlwifi: iwl4965: Microcode SW error detected Tomas Janousek <tomi@nomi.cz> - 2019-12-15 23:30 +0100

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