ata panic: "mtx_lock of destroyed mutex"

[Bruce Cran]

On Thu, 03 Jun 2010 10:44:32 +0300
Alexander Motin <mav at FreeBSD.org> wrote:

> Bruce Cran wrote:
> > I've been setting up an amd64 VirtualBox machine with the latest
> > 9-CURRENT and got the following panic when booting it (another
> > machine updated and booting at the same time didn't panic):
> > 
> > ata1: WARNING - READ_TOC read data overrun 18>12
> > panic: mtx_lock of destroyed mutex
> > @ /usr/src/sys/kern/kern_sema.c:79 cpuid = 0
> 
> Are there any other related messages before it if boot with verbose?

I've only seen it happen once, and didn't get any more details. I'll
start booting with verbose in case it happens again.

-- 
Bruce Cran