kernel BUG report during Natty Kubuntu install

[Glen Ditchfield]

Binary package hint: ubiquity

I booted from a Live USB key created from Kubuntu's 20110426 natty-desktop-i386.iso. When the initial screen appeared, I selected "try Kubuntu" instead of "install Kubuntu". When the Plasma desktop appeared, I double-clicked the "install Kubuntu" icon.

When ubuquity started, I selected language "English" and clicked [Forward].
On the second screen, I was not connected to the Net, did not install 3rd party software, did not download updates, and clicked [Forward].

The screen jumped to a "kernel BUG" report; see the end of the attached kern.log file.

Ubiquity was still running on a different screen; it had reached the partitioning screen.

[Jonathan Riddell (jr)]

Does your computer have a btrfs partition?

[Glen Ditchfield (gjditchfield)]

Yes, it has a btrfs partition. Below the "cut here" line in the "kernel BUG" attachment (kern.log) you'll find
    kernel BUG at /build/buildd/linux-2.6.38/fs/btrfs/super.c:892!
    invalid opcode: 0000 [#1] SMP

By the way, why was this bug report marked invalid?

[Herton R. Krzesinski (herton)]

This is the same BUG under installation as reported in bug 759503, so I'm marking this as a duplicate of it.