From owner-freebsd-current  Wed Apr 17 15:14:56 2002
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Date: Wed, 17 Apr 2002 15:14:52 -0700
From: Julian Elischer <julian@vicor-nb.com>
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To: current@freebsd.org
Subject: What does "FPU bounds check fault" mean?
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I got this fault on a production machine..
The given fault PC was 0xc01499f0 which is the first byte of fxpintr()
(??)
even though coredumps were enabled, for some reason none was made.


> > >
> > > wss0c left this message in /var/log/messages:
> > > Apr 17 08:36:55 wss0c /kernel: Fatal trap 21: "FPU bounds check fault
> > > while in kernel mode
> > > Apr 17 08:36:55 wss0c /kernel: instruction pointer  = 0x8:0xc01499f0
> > > Apr 17 08:36:55 wss0c /kernel: stack pointer            =
> > > 0x10:0xd9f83f9c
> > > Apr 17 08:36:55 wss0c /kernel: frame pointer            =
> > > 0x10:0xbfbffc8c
> > > Apr 17 08:36:55 wss0c /kernel: code segment     = base 0x0, limit
> > > 0xfffff, type 0x1b
> > > Apr 17 08:36:55 wss0c /kernel: = DPL 0, pres 1, def32 1, gran 1
> > > Apr 17 08:36:55 wss0c /kernel: processor eflags = interrupt enabled,
> > > IOPL = 0
> > > Apr 17 08:36:55 wss0c /kernel: current process      = 78317 (gzip)
> > > Apr 17 08:36:55 wss0c /kernel: interrupt mask       = net
> > > Apr 17 08:36:55 wss0c /kernel: trap number      = 21
> > > Apr 17 08:36:55 wss0c /kernel: panic: FPU bounds check fault
> > > Apr 17 08:36:55 wss0c /kernel:
> > >

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