cdparanoia stuck in cbwait

[Mark Johnston]

On Sat, Nov 05, 2011 at 01:09:40PM -0400, Brandon Falk wrote:
> On Sat, Nov 05, 2011 at 12:48:02PM -0400, Mark Johnston wrote:
> > On Sat, Nov 05, 2011 at 12:42:12PM -0400, Brandon Falk wrote:
> > > Hello,
> > > 
> > > I was got some read errors when I was reading from my disk, which is
> > > fine. But then cdparanoia starting to no longer respond. Now it's
> > > zombied and sitting in cbwait. `kill -9 <pid>` does not take it down, it
> > > seems like it's stuck in the kernel (?). Is this an issue to look at
> > > cdparanoia for, or to look in the kernel? Perhaps cdparanoia or the
> > > kernel should have some sort of a timeout? Currently it looks like the
> > > only fix is a full reboot.
> > 
> > I've seen this problem a couple of times on -BETA2 as well. I haven't
> > had time to try and figure out what's causing it, but a camcontrol reset
> > of the bus will "fix" the problem without a reboot IIRC.
> > 
> > -Mark
> 
> No luck on the reset. When I reset, it says it was reset successfully,
> but cdparanoia still sits zombied, and nothing changes. If I do
> `camcontrol stop`, camcontrol hangs and becomes a zombie too (until I
> kill it's parent process)

Hm, perhaps I'm misremembering it. I'll try to reproduce it when I get a
chance.