SRU Request for LP#217659

Colin Ian King colin.king at canonical.com
Mon Sep 22 12:54:12 UTC 2008


This is a re-posting from last week - not sure if anyone saw it.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/217659

SRU justification:

Impact: Socketcom's Socket Bluetooth card causes a kernel panic when it
is plugged in, either during boot or after boot.

Unfortunately commit ac019360fe311dd6aa11b358a02eb3a61675882e treats an
early interrupt during hardware and driver initialisation as a fatal
driver bug and generates an oops which is rather a heavy handed way of
catching this interrupt. Reverting this commit causes the driver to
catch  the interrupt with a kernel warning rather than a fatal oops.

Testcase: Without the revert, when the Socketcom Socket Bluetooth is
plugged in (during or after boot) the kernel panics. With the revert,
there is no panic, instead the device causes a kernel warning about a
spurious interrupt.

Tested by Quinn Plattel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/217659/comments/17
from a PPA 
build with this revert.

This fix reverts commit ac019360fe311dd6aa11b358a02eb3a61675882e which
introduced the oops.

Attached: The revert

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