From owner-freebsd-current  Tue Jan  4  2:28:24 2000
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Date: Tue, 04 Jan 2000 10:30:22 +0000
From: Alex <ak@freenet.co.uk>
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To: Soren Schmidt <sos@freebsd.dk>
Cc: freebsd-current@FreeBSD.ORG, gandalf@vilnya.demon.co.uk
Subject: panic in newpcm ( was Re: Ouch!  Something broke (possibly ATA))
References: <200001040912.KAA97868@freebsd.dk>
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Soren Schmidt wrote:
> 
> It seems Alex wrote:
> > pcm0: <CS4231> at port 0x530-0x537,0x538-0x539 irq 5 drq 1 flags 0xa110
> > on isa0
> > 
> >
> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address   = 0xbff21000
> > fault code              = supervisor read, page not present
> > instruction pointer     = 0x8:0xc0214ffe
> > stack pointer           = 0x10:0xc02f6b58
> > frame pointer           = 0x10:0xc02f6b8c
> > 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)
> > interrupt mask          = net tty bio cam
> > trap number             = 12
> > panic: page fault
> > Uptime: 0s
> > Automatic reboot in 15 seconds - press a key on the console to abort
> >
> >
> > % nm /kernel.test | grep c0214f
> > c0214f68 T bus_dmamap_load
> > c0214f28 T bus_dmamem_free
> 
> Those are not used by the ata driver....
> 
> -Søren


....and I apologise for wrongfully accusing it.   The panic is in fact
caused by newpcm (Cameron CC'd).  DDB trace can be provided upon request
(is there a way to save it into a file instead of having to write it
down on a piece of paper?)

Alex


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