Quoting "Kostik Belousov" <[EMAIL PROTECTED]> (from Wed, 13 Aug 2008
14:54:13 +0300):
On Wed, Aug 13, 2008 at 01:28:22PM +0200, Alexander Leidinger wrote:
Quoting "Nate Eldredge" <[EMAIL PROTECTED]> (from Tue, 12 Aug
2008 23:52:35 -0700 (PDT)):
>Hi folks,
>
>I recently tried to run a Linux binary of Maple (commercial math
>software) on my FreeBSD 7.0-RELEASE/amd64 box, and the machine
>rebooted. I tried it again while watching the console, and no panic
>message appeared to be produced. Does anyone have any ideas on how
>to debug problems of this nature? I realize I may not be able to
>get Maple to work, but in any case the system should not die like
>this, so I can at least try to fix that bug.
>
>Incidentally, is it possible to run kdb with a USB keyboard?
>Hitting Ctrl-Alt-Esc gives me the kdb prompt, but I can't type, so I
>can do nothing except hit the power button. I do have
>hint.atkbd.0.flags="0x1" in /boot/device.hints. Unfortunately I
>don't have a PS/2 keyboard on hand, though I can try and get a hold
>of one if all else fails.
A guess out of my cristallball:
That's one of the cases which happen if you run a linux program
without branding it as a linux program first. People tend to think it
is not needed, but in some rare circumstances it just causes what you
see, a reboot. So go and identify all binaries (IMPORTANT: but not the
libraries!), e.g. with the file(1), and use "brandelf -t Linux" on
those programs.
That would be an enormous local hole, assuming an native FreeBSD binary
may cause system crash. I actually doubt that non-branded elf binary
ever start, due to unsatisfied dynamic dependencies.
You see this behavior only for static binaries. In the non-branded
case the image activator takes the FreeBSD image and unfortunately
there's a common syscall in linux which matches the syscall number in
FreeBSD which causes the reboot (IIRC reboot syscall, do we have
something like this?). It's not a system crash (kernel panic), it's a
real reboot. AFAIR this also only works if you run the program as
root. So...
Bye,
Alexander.
--
Blow it out your ear.
http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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