WiFi connection suddenly drops
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
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-
ProcVersionSign
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: GNOME
Date: Sun Apr 8 22:56:35 2018
HibernationDevice: RESUME=
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-
SHELL=/bin/bash
XDG_RUNTIME_
PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
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.
dmi.modalias: dmi:bvnHewlett-
dmi.product.family: 103C_5335KV
dmi.product.name: HP Pavilion dv6500 Notebook PC
dmi.product.
dmi.sys.vendor: Hewlett-Packard
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