11.10 shutdown delay of 1 min when using the open source Broadcom firmware

[Ubfan]

The Broadcom 4311/12 wireless chips require firmware when using the b43 driver.
This firmware is available from Broadcom (which is put into /lib/firmware/b43)
or as open source (which is put into /lib/firmware/b43-open). Either firmware
works, but when the proprietary Broadcom firmware is not present in .../b43,
shutdown takes an extra minute, after the log file line "could not find
.../b43/ucode5.fw". After a minute, shutdown completes normally.
Adding in the Broadcom firmware lets shutdown proceed without the minute
delay. This behavior is new with the 11.10 release.

Note the below udev items from /var/log/udev are probably the cause of this
problem.
...
KERNEL[18.445953] remove /devices/pci0000:00/0000:00:02.0/0000:01:00.0/ssb0:0$
UDEV_LOG=3
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/ssb0:0/firmware/ssb0:0
SUBSYSTEM=firmware
FIRMWARE=b43/ucode5.fw
TIMEOUT=60
ASYNC=0
SEQNUM=1822
.....
and many other FIRMWARE=b43/...fw paragraphs

[Ubfan (ubfan1)]

The open source firmware is available in packages firmware-b43-installer and firmware-b43-lpphy-installer. It is not certain that the system with the problem had used those packages, however. The firmware may have been compiled directly, or copied from another system.

[Ubfan (ubfan1)]

At some point, the open source firmware was no longer installed from the firmware-b43-*installer packages, which now download the Broadcom drivers and use b43-fwcutter to install the firmware. I'm not sure what happens when the Broadcom STA driver is used, since it contains the firmware within the driver, and does not require the installation of firmware in a directory. Bugs like 1061639 are indicating problems with bdus/network-manager delays in shutdown, so this sort of delay may be a contributing factor.

[Christopher M. Penalver (penalvch)]

Ubfan, thank you for reporting this bug to Ubuntu. Oneiric reached EOL on May 9, 2013.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

If you are having an issue in a supported release, please file a new report.

Do feel free to report any other bugs you may find.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Ubfan (ubfan1)]

Ubuntu 14.04.1 using the open source firmware in /lib/firmware/b43-open, without the /lib/firmware/b43 files no longer displays the 60 second delay on shutdown (on the same hardware with the original problem). Looks like this has been fixed sometime in the last two years.