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Date:      Sun, 3 Aug 2014 06:15:06 +0300
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        Steve Kargl <sgk@troutmask.apl.washington.edu>
Cc:        freebsd-x11@freebsd.org
Subject:   Re: Instant reboot with New Xorg
Message-ID:  <20140803031506.GL93733@kib.kiev.ua>
In-Reply-To: <20140803024128.GA34242@troutmask.apl.washington.edu>
References:  <20140803024128.GA34242@troutmask.apl.washington.edu>

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On Sat, Aug 02, 2014 at 07:41:28PM -0700, Steve Kargl wrote:
> There is no panic nor core if X11 is started with startx.
> There is an instant reboot.  However, doing
>=20
> % Xorg -configure
>=20
> yields a panic that can be dumped.
>=20
> Hardware: Dell Latitude D530 laptop
>=20
> Showing only the video related dmesg output, I have
>=20
> FreeBSD 11.0-CURRENT #0 r269385: Fri Aug  1 10:39:21 PDT 2014
>     root@laptop-kargl.apl.washington.edu:/usr/obj/usr/src/sys/MOBILE i386
> FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
> CPU: Intel(R) Core(TM)2 Duo CPU     T7250  @ 2.00GHz (1995.05-MHz 686-cla=
ss CPU)
>   Origin=3D"GenuineIntel"  Id=3D0x6fd  Family=3D0x6  Model=3D0xf  Steppin=
g=3D13
>   Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,=
PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>   Features2=3D0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,P=
DCM>
>   AMD Features=3D0x20000000<LM>
>   AMD Features2=3D0x1<LAHF>
>   TSC: P-state invariant, performance statistics
> real memory  =3D 3221225472 (3072 MB)
> avail memory =3D 3135918080 (2990 MB)
>=20
> vgapci0: <VGA-compatible display> port 0xeff8-0xefff mem 0xfea00000-0xfea=
fffff,0xe0000000-0xefffffff irq 16 at device 2.0 on pci0
> agp0: <Intel GM965 SVGA controller> on vgapci0
> agp0: aperture size is 256M, detected 7676k stolen memory
> drm0: <Intel i965GM> on vgapci0
> info: [drm] MSI enabled 1 message(s)
> info: [drm] AGP at 0xe0000000 256MB
> info: [drm] Initialized i915 1.6.0 20080730
> vgapci0: Boot video device
> vgapci1: <VGA-compatible display> mem 0xfeb00000-0xfebfffff at device 2.1=
 on pci0
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <8 virtual consoles, flags=3D0x300>
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
>=20
> --=20
> Steve
>=20
> laptop-kargl.apl.washington.edu dumped core - see /var/crash/vmcore.1
>=20
> Sat Aug  2 19:22:11 PDT 2014
>=20
> FreeBSD laptop-kargl.apl.washington.edu 11.0-CURRENT FreeBSD 11.0-CURRENT=
 #0 r269385: Fri Aug  1 10:39:21 PDT 2014     root@laptop-kargl.apl.washing=
ton.edu:/usr/obj/usr/src/sys/MOBILE  i386
>=20
> panic: make_dev_credv: bad si_name (error=3D17, si_name=3Ddri/card0)

Errno 17 is EEXISTS, since it comes from the devfs node instantiation,
I am almost sure that you have both drm and drm2 in your kernel. Most
likely, drm is compiled in or loaded as module at boot time, while drm2
is loaded by X server on initialization.

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