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Message #125725
Re: [Bug 1296504] Re: iwl3945 wireless connection becomes unreliable
not sure, it happened several months after the upgrade if I remember
correctly, but seems regressive. I ordered a replacement wifi card to rule
out hardware issue, will update when that arrives and I can test.
ethan
“A society grows great when its elders plant trees whose shade they know
they shall never sit in.” -- an ironic Greek proverb
On Tue, Jun 30, 2015 at 4:26 AM, Christopher M. Penalver <
christopher.m.penalver@xxxxxxxxx> wrote:
> ethanay, could you please advise which prior kernel version specifically
> was the one that introduced this problem?
>
> ** Tags added: regression-update
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1296504
>
> Title:
> iwl3945 wireless connection becomes unreliable
>
> Status in linux package in Ubuntu:
> Incomplete
>
> Bug description:
> what I expect: wireless connectivity to be reliable and consistent
> what happens instead: wireless connection cuts out, recovers,
> re-establishes connection. sometimes (rare) requires disabling /
> re-enabling via hardware or software switch. sometimes (more rare)
> hardware fails completely until reboot (removing and re-inserting module
> fails -- hardware disappears to the system until reboot). This problem
> will occur without a suspend / resume cycle.
>
> This problem appeared recently, within the last month or two months of
> kernel updates. I think the next step in debugging would be to test
> reliability against previous kernel versions.
>
> some relevant dmesg:
> keyboard: can't emulate rawmode for keycode 240
> iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0
> (of 900), is 0xffffffff, s/b 0xf802020
> iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
> iwl3945 0000:0c:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0xFFFFFFFF
>
> iwl3945 0000:0c:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
> iwl3945 0000:0c:00.0: EEPROM not found, EEPROM_GP=0xffffffff
> iwl3945 0000:0c:00.0: Unable to init EEPROM
> iwl3945 0000:0c:00.0: PCI INT A disabled
> iwl3945: probe of 0000:0c:00.0 failed with error -2
>
> ---
> AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
> ApportVersion: 2.0.1-0ubuntu17.8
> Architecture: i386
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: ethan 2078 F.... pulseaudio
> Card0.Amixer.info:
> Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 48'
> Mixer name : 'Silicon Image SiI1392 HDMI'
> Components : 'HDA:83847616,1028020a,00100201
> HDA:10951392,1028020a,00100000'
> Controls : 34
> Simple ctrls : 20
> DistroRelease: Ubuntu 12.04
> HibernationDevice: RESUME=UUID=b57e427a-bc21-49e6-994b-a43aee47cec0
> InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386
> (20120423)
> MachineType: Dell Inc. XPS M1330
> MarkForUpload: True
> Package: linux (not installed)
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-77-lowlatency-pae
> root=UUID=8e1188f1-2cff-41e9-8298-1d4b1983f24d ro quiet splash
> acpi_backlight=vendor dell_laptop.backlight=0 vt.handoff=7
> ProcVersionSignature: Ubuntu 3.2.0-77.79-lowlatency-pae 3.2.66
> RelatedPackageVersions:
> linux-restricted-modules-3.2.0-77-lowlatency-pae N/A
> linux-backports-modules-3.2.0-77-lowlatency-pae N/A
> linux-firmware 1.79.18
> RfKill:
> 0: phy0: Wireless LAN
> Soft blocked: no
> Hard blocked: no
> Tags: precise running-unity
> Uname: Linux 3.2.0-77-lowlatency-pae i686
> UpgradeStatus: No upgrade log present (probably fresh install)
> UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo video
> dmi.bios.date: 12/26/2008
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A15
> dmi.board.name: 0N6705
> dmi.board.vendor: Dell Inc.
> dmi.chassis.type: 8
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr:
> dmi.product.name: XPS M1330
> dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1296504/+subscriptions
>
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1296504
Title:
iwl3945 wireless connection becomes unreliable
Status in linux package in Ubuntu:
Incomplete
Bug description:
what I expect: wireless connectivity to be reliable and consistent
what happens instead: wireless connection cuts out, recovers, re-establishes connection. sometimes (rare) requires disabling / re-enabling via hardware or software switch. sometimes (more rare) hardware fails completely until reboot (removing and re-inserting module fails -- hardware disappears to the system until reboot). This problem will occur without a suspend / resume cycle.
This problem appeared recently, within the last month or two months of
kernel updates. I think the next step in debugging would be to test
reliability against previous kernel versions.
some relevant dmesg:
keyboard: can't emulate rawmode for keycode 240
iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xffffffff, s/b 0xf802020
iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
iwl3945 0000:0c:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0xFFFFFFFF
iwl3945 0000:0c:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
iwl3945 0000:0c:00.0: EEPROM not found, EEPROM_GP=0xffffffff
iwl3945 0000:0c:00.0: Unable to init EEPROM
iwl3945 0000:0c:00.0: PCI INT A disabled
iwl3945: probe of 0000:0c:00.0 failed with error -2
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.8
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ethan 2078 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 48'
Mixer name : 'Silicon Image SiI1392 HDMI'
Components : 'HDA:83847616,1028020a,00100201 HDA:10951392,1028020a,00100000'
Controls : 34
Simple ctrls : 20
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=b57e427a-bc21-49e6-994b-a43aee47cec0
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Dell Inc. XPS M1330
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-77-lowlatency-pae root=UUID=8e1188f1-2cff-41e9-8298-1d4b1983f24d ro quiet splash acpi_backlight=vendor dell_laptop.backlight=0 vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-77.79-lowlatency-pae 3.2.66
RelatedPackageVersions:
linux-restricted-modules-3.2.0-77-lowlatency-pae N/A
linux-backports-modules-3.2.0-77-lowlatency-pae N/A
linux-firmware 1.79.18
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: precise running-unity
Uname: Linux 3.2.0-77-lowlatency-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo video
dmi.bios.date: 12/26/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.name: 0N6705
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1330
dmi.sys.vendor: Dell Inc.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1296504/+subscriptions
References