Re: Sony V505BX ATA panic

On 2004.02.14 14:30:55 -0800, Steve Kargl wrote:
> On Sat, Feb 14, 2004 at 10:44:13PM +0100, Simon L. Nielsen wrote:
> > acd0: Medium: CD-R 120mm data disc
> > Memory modified after free 0xc4667200(508) val=1000100 _at_ 0xc4667200
> > 
> > 
> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address   = 0x1000120
> > fault code              = supervisor read, page not present
> > instruction pointer     = 0x8:0xc06627c2
> > stack pointer           = 0x10:0xc0c21ba4
> > frame pointer           = 0x10:0xc0c21bc0
> > code segment            = base 0x0, limit 0xfffff, type 0x1b
> >                         = DPL 0, pres 1, def32 1, gran 1
> > processor eflags        = interrupt enabled, resume, IOPL = 0
> > current process         = 0 (swapper)
> > kernel: type 12 trap, code=0
> > Stopped at      mtrash_ctor+0x3a:       movl    0x20(%eax),%eax
> > db> trace
> > mtrash_ctor(c4667200,200,0) at mtrash_ctor+0x3a
> 
> I reported a similar crash several days ago.
>
> http://lists.freebsd.org/pipermail/freebsd-current/2004-February/020580.html

Yes that looks similar.

> My backtrace is different, I get the same "Memory modified after
> free" message and a mtrash_ctor panic.  I've tracked the problem
> down to (see thread):

Mine doesn't seem to be related to acpi.  Have you tried the small patch
maxim posted in the start of this thread ?

-- 
Simon L. Nielsen
FreeBSD Documentation Team