[sclug] Kernel doesn't start tvcard properly

Dickon Hood dickon-ml at fluff.org
Fri Sep 3 17:10:17 UTC 2010

On Fri, Sep 03, 2010 at 10:52:41 +0100, Simon Huggins wrote:
: On Wed, Aug 25, 2010 at 10:41:41AM +0100, andrew wrote:
: > I am using Mandriva Free 2010.1 and am having temperamental trouble
: > detecting my firmware driver for the tv card.

: > See this pastebin:
: >     http://pastebin.com/aKYftSyb

: This was fixed on IRC.  Dickon, Andy, care to add what you did to fix it
: for posterity?

Spotted that it was likely a race condition, where the race was between
the root filesystem being mounted (and hence the device firmware being
available), and the device driver being loaded.  I suggested blacklisting
the dvb-usb module and modprobe(8)ing it in rc.local, but that wasn't
quite right; I'd got my dependencies around the wrong way.  The correct
module to blacklist and modprobe was the card-specific driver, the name of
which I forget.

Right idea, though.

The alternative is to supply the /lib/firmware/ module in the initrd, but
that opens a huge can of worms around non-stock initrds and whatnot, and
remembering to update both copies when needed.  Better to load the module
later in the day.

: I thought it was quite an interesting bug I hadn't come across before.

Neither had I.

Dickon Hood

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