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Date:      Fri, 03 Oct 2014 09:45:10 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 194112] New: [panic] Fatal trap 12: Page fault while in vm86 mode with kern.vty=vt console and hw.vga.textmode=1
Message-ID:  <bug-194112-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D194112

            Bug ID: 194112
           Summary: [panic] Fatal trap 12: Page fault while in vm86 mode
                    with kern.vty=3Dvt console and hw.vga.textmode=3D1
           Product: Base System
           Version: 10.1-BETA3
          Hardware: i386
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: info@juanmolina.eu

I=E2=80=99m getting a consistent panic with a NVIDIA GeForce FX 5600 XT (NV=
31) AGP card
when enabling both kern.vty=3Dvt and hw.vga.textmode=3D1 in /boot/loader.co=
nf.
FreeBSD 10.1-BETA3.

I wanted to test the VT console, enabled kern.vty=3Dvt, but the graphics mo=
de was
unusable due to the buffer being drawn out of the screen (that=E2=80=99s an=
other
problem). I then added hw.vga.textmode=3D1 and kernel panicked.

Unfortunately, I=E2=80=99m not getting any core dumps despite having dumpde=
v=3D"AUTO" in
/etc/rc.conf and a 3 GB swap device enabled (actual memory is 1.5 GB). I=E2=
=80=99ve not
found any erros related to savecore.

Here is some relevant text, copied by hand, from the panic:

vga0: <VGA GENERIC ISA VGA> ...

Fatal trap 12: Page fault while in vm86 mode
...
fault code: user read, page not present
...

I=E2=80=99m willing to test further if any developer is interested.

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