[PANIC] recent 7.2-STABLE when probing drm

[Jimmie James]

On Tue, 2009-05-05 at 13:06 +0200, Guido Falsi wrote:
> Hi!
> 
> I'm using FreeBSD/i386 stable on a HP DC7800 PC.
> 
> It has an Intel Q35 graphic chip.
> 
> After upgrading to a recent stable I experienced a pani on boot, just
> after probing drm.
> 
> I investigated a little and found out that reverting the file
> 
> src/sys/dev/pci/pci.c
> 
> to rev. 1.355.2.9 (SVN Rev 190092) solves the crash.
> 
> I could not investigatte urther right away, but some regression was
> introduced with this rev.
> 
> Is any more information needed?

I want to add a "me too". I can't compile in a debugger as my sources 
are updated to 7.2, and any kernel built panics with the same message.
I did find this on the CURRENT mailing list, but it wont apply cleanly: 
http://www.mailinglistarchive.com/freebsd-current@freebsd.org/msg26975.html


vgapci0 at pci0:0:2:0:     class=0x030000 card=0x25821043 chip=0x25828086 
rev=0x04 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = '82915G/GV/GL, 82910GL Integrated Graphics Device'
     class      = display
     subclass   = VGA
vgapci1 at pci0:0:2:1:     class=0x038000 card=0x25821043 chip=0x27828086 
rev=0x04 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = '82915G Graphics device: 82915G/GV/910GL Express 
Chipset Family'
     class      = display

 From a 7.2-PRERELEASE kernel.

vgapci0: <VGA-compatible display> port 0x6800-0x6807 mem 
0xcfd80000-0xcfdfffff,0xd0000000-0xdfffffff,0xcfe80000-0xcfebffff at 
device 2.0 on pci0
agp0: <Intel 82915G (915G GMCH) SVGA controller> on vgapci0
drm0: <Intel i915G> on vgapci0
vgapci0: child drm0 requested pci_enable_busmaster
vgapci1: <VGA-compatible display> mem 0xcfe00000-0xcfe7ffff at device 
2.1 on pci0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
drm0: <Intel i915G> on vgapci0
vgapci0: child drm0 requested pci_enable_busmaster
info: [drm] AGP at 0xd0000000 256MB
info: [drm] Initialized i915 1.6.0 20080730
drm0: [ITHREAD]
drm0: [ITHREAD]

-- 
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