Bug#649626: iwl3945: Microcode SW error detected. Restarting 0x82000008
- To: Agnonchik <firstname.lastname@example.org>
- Cc: email@example.com
- Subject: Bug#649626: iwl3945: Microcode SW error detected. Restarting 0x82000008
- From: Jonathan Nieder <firstname.lastname@example.org>
- Date: Tue, 10 Jan 2012 17:21:20 -0600
- Message-id: <20120110232120.GQ22184@burratino>
- Reply-to: Jonathan Nieder <email@example.com>, firstname.lastname@example.org
- In-reply-to: <email@example.com>
- References: <firstname.lastname@example.org> <20120107005615.GE3680@elie.hsd1.il.comcast.net> <email@example.com> <20120108000429.GC28219@burratino> <firstname.lastname@example.org> <20120108173138.GA1942@burratino> <email@example.com>
found 649626 linux-2.6/2.6.32-40
> I REPRODUCED exactly the same error in 2.6.32-5-686-bigmem. That's
> what I did:
> Added stable-proposed-updates to /etc/apt/sources.list
> worked fine, except a couple of dkms modules which need kernel
> headers. I tried to install linux-headers-2.6.32-5-686-bigmem but
> fauiled because the package depends on gcc-4.3 which appeared to be
> not installable on my system. I wonder if gcc-4.4 can be accepted
> instead of 4.3?
> Nevertheless, the kernel is installed. Though nvidia and virtualbox
> drivers are missed, they are not so important for debugging I think.
> I can observe that wi-fi connection is broken with 2 minutes or so
> period. The strange microcode SW error is issued each time.
Drat. Thanks very much for checking.
> I can debug further if it makes any sense for the community.
A few directions for that:
- What version of the firmware-iwlwifi package do you have installed?
Is the behavior any different if you update it?
- If you have time for it, please try some kernels halfway between
from the list at  so we can discover which one introduced the
If a 3.0-rc2 or newer kernel reproduces the problem, a log would
also be helpful, since the output for microcode errors was improved.
- You said you are only able to reproduce this with network-manager
and not ifupdown. Can you reproduce it using iw and iproute by hand,
ip link set wlan0 up
iw dev wlan0 connect -w <SSID> key d:0:<key>
This would help us get help from upstream.