Public bug reported:
This started to happen only with newer kernel versions. The WiFi was
previously absolutely solid. When the WiFi connection drops, there are
clear kernel error messages:
Apr 08 22:39:29 konstantin kernel: iwl3945 0000:02:00.0: Queue 4 stuck for 2048
ms.
Apr 08 22:39:30 konstantin kernel: iwl3945 0000:02:00.0: On demand firmware
reload
Apr 08 22:39:30 konstantin kernel: ieee80211 phy0: Hardware restart was
requested
Apr 08 22:39:30 konstantin kernel: iwl3945 0000:02:00.0: BSM uCode verification
failed at addr 0x00003800+0
Apr 08 22:39:30 konstantin kernel: iwl3945 0000:02:00.0: Unable to set up
bootstrap uCode: -5
The last two messsages are repeated a few times. This is followed by
more detailed stack traces, but the hardware does not recover.
Unloading the iwl3945 module and reloading it did not help in a few
tests.
Looking at the log some more, I see this line
Apr 08 22:33:38 konstantin kernel: iwl3945 0000:02:00.0: Enabling power
save might cause firmware crashes
I will try to find out if this can be disabled and do more test then.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-37-generic 4.13.0-37.42
ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: regina 1098 F.... pulseaudio
CurrentDesktop: GNOME
Date: Sun Apr 8 22:56:35 2018
HibernationDevice: RESUME=UUID=4c990619-fde4-4d44-b45a-f240be602537
InstallationDate: Installed on 2017-04-19 (354 days ago)
InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: Hewlett-Packard HP Pavilion dv6500 Notebook PC
ProcEnviron:
LANG=de_DE.UTF-8
TERM=xterm-256color
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-37-generic
root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash video=SVIDEO-1:d
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-37-generic N/A
linux-backports-modules-4.13.0-37-generic N/A
linux-firmware 1.169.3
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2018-01-19 (78 days ago)
dmi.bios.date: 04/04/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.05
dmi.board.name: 30CC
dmi.board.vendor: Quanta
dmi.board.version: 79.10
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.05:bd04/04/2007:svnHewlett-Packard:pnHPPaviliondv6500NotebookPC:pvrRev1:rvnQuanta:rn30CC:rvr79.10:cvnQuanta:ct10:cvrN/A:
dmi.product.family: 103C_5335KV
dmi.product.name: HP Pavilion dv6500 Notebook PC
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful wayland-session
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https://bugs.launchpad.net/bugs/1762248
Title:
WiFi connection suddenly drops
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