Comment 22 for bug 253089

After the message about "unexpected IRQ trap at vector db" (it's always this number),
things go oddly sluggish, and in particular, when typing often the last few things typed won't
appear until _another_ key is pressed. When doing "cat some_file.txt", sometimes that won't scroll
to the end until a key is pressed (this is in Gnome Terminal.), or until a second or two have passed.
Auto-repeat has entirely stopped working. It behaves as though some interrupts aren't being serviced until something else occurs to trigger their servicing.

I have also noticed that about 50% of boots lock up when the progress bar is about 20% (I haven't looked at it with nosplash), and occasionally the machine locks up, and sometimes SysRq-B fails to reboot from a normal working state.

When none of these things happen, normal operation seems much the same as Hardy's 2.6.24-19 kernel, i.e. fine.

(Except sound recording stopped working, compared with the Hardy 2.6.24-19 kernel where it's fine, but that's probably unrelated).

I'm not using any special boot options, just "root=/dev/mapper/vg0-ubuntu ro quiet splash".