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Date: Tue, 03 Jul 2007 08:00:09 -0500
From: Eric Anderson <anderson@freebsd.org>
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To: Stefan Lambrev <stefan.lambrev@sun-fish.com>
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Cc: freebsd-current@freebsd.org, freebsd-amd64@freebsd.org
Subject: Re: Dell PE2850 freeze on boot with PXE and FreeBSD 7.0 amd64
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Stefan Lambrev wrote:
> Hello,
> 
> Sorry for cross-posting, but I'm not sure which is the proper mail list 
> for this.
> 
> I'm trying to boot latest FreeBSD 7 amd64 snapshot on Dell PE2850 (+2 
> year old server),
> but it panic (and freeze) every time on afd.
> afd in this case should be virtual floppy provided by DRAC (Dell Remote 
> Access Controller)
> 
> FreeBSD 7 - i386 boot without a problems, I'll try few other snapshots 
> (6.2-stable amd64) to be sure that the problem is only in 7-current amd64
> 
> Here is result from verbose boot:
> 
> 
[..snip..]
> ata2-slave: pio=PIO3 wdma=UNSUPPORTED udma=UNSUPPORTED cable=40 wire
> ata2-master: pio=PIO3 wdma=UNSUPPORTED udma=UNSUPPORTED cable=40 wire
> afd0: setting PIO3 on SiI 0680 chip
> afd0: (no media) <VIRTUALFLOPPY DRIVE Floppy > at ata2-master PIO3
> 
> 
> Fatal trap 18: integer divide fault while in kernel mode
> cpuid = 0; apic id = 00
> instruction pointer     = 0x8:0xffffffff802522f7
> stack pointer           = 0x10:0xffffffff80f9cba0
> frame pointer           = 0x10:0xffffffff80f9cc20
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                       = DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 0 (swapper)
> [thread pid 0 tid 0 ]
> Stopped at      afd_attach+0x2c7:       divq    %rcx,%eax
> db>
> 
> 
> At this point the machine freezes and i cannot trace or whatever.
> 
> P.S. please include me in CC as I'm not subscribed to both lists.
> 


You should be able to disable the virtual floppy on the system, and that 
should allow it to boot.  That's not a fix, but it could get you going 
in the mean time.


Eric