Re: kern/49707: i386 i915drmkms on 82845G/GL panic with Xorg intel driver

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

The following reply was made to PR kern/49707; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: riastradh%NetBSD.org@localhost
Subject: Re: kern/49707: i386 i915drmkms on 82845G/GL panic with Xorg intel
 driver
Date: Sun, 31 Jan 2016 05:46:25 -0600 (CST)

 On Sun, 31 Jan 2016, John D. Baker wrote:
 
 > I had occasion to try modular/pkgsrc Xorg.  It behaves the same: Bus
 > error.  Although I built the server with the "debug" option, it doesn't
 > sseem to have any debugging symbols.  The backtrace from 'gdb' seems
 > to be otherwise consistent with the "native" Xorg.
 
 I rebuilt "modular-xorg-server" and "xf86-video-intel" with:
 
   CFLAGS+=	-g -O2
 
 I didn't get any more debugging symbols, but the resulting Xserver
 doesn't crash.  An initial trial under 'gdb' seemed not to produce a
 working display.  The screen was blank (the wscons cursor was not visible)
 but there was no X cursor.  Attempting to switch virtual terminals
 appeared not to work.  It reported receiving "SIGUSR1".
 
 Later, running 'X' normally, with the "-retro" option displayed the
 "root weave" pattern, and opening 'xterm -display :0' worked.
 
 So, Heisenbug?
 
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