On 2/11/19 6:36 PM, Steve Kargl wrote:
On Mon, Feb 11, 2019 at 06:05:03PM +0100, Niclas Zeising wrote:
On 2/11/19 5:20 PM, Steve Kargl wrote:
On Mon, Feb 11, 2019 at 08:12:05AM -0800, Steve Kargl wrote:
Anyone have any idea which recent change broke the
drm-legacy-kmod port.  This is why I raised an issue
with removal of drm2 from src/sys.  How is suppose
to be fixed?


It was r343567.  The merging of PAE and NO PAE pmap.h
by kib removed all of the missing macros. :(


Can you give attached patch a spin?
Thanks!
Regards
--
Niclas

The patch allows the port to be built.

kldloading the i915kms module causes a 'black screen
of death'

I'll note that there seems to be a race condition in
booting a kernel (with or without the drm2 stuff).
During boot the kernel hangs (see below) :

---<<BOOT>>---
Copyright (c) 1992-2019 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 13.0-CURRENT r343477 MOBILE i386
FreeBSD clang version 7.0.1 (tags/RELEASE_701/final 349250) (based on LLVM 
7.0.1)
VT(vga): resolution 640x480
CPU: Intel(R) Core(TM)2 Duo CPU     T7250  @ 2.00GHz (1995.05-MHz 686-class CPU)
   Origin="GenuineIntel"  Id=0x6fd  Family=0x6  Model=0xf  Stepping=13
   
Features=0xbfebfbff<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=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
   AMD Features=0x20100000<NX,LM>
   AMD Features2=0x1<LAHF>
   VT-x: (disabled in BIOS) HLT,PAUSE
   TSC: P-state invariant, performance statistics
real memory  = 4294967296 (4096 MB)
avail memory = 3659202560 (3489 MB)
Event timer "LAPIC" quality 100
ACPI APIC Table: <DELL   M08    >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s)
Firmware Warning (ACPI): Incorrect checksum in table [TCPA] - 0x80, should be 
0x24 (20190108/tbprint-337)
ioapic0: Changing APIC ID to 2
ioapic0 <Version 2.0> irqs 0-23 on motherboard
Launching APs: 1

*** kernel hangs here sometimes ***

Timecounter "TSC" frequency 1995048460 Hz quality 1000
random: entropy device external interface
kbd1 at kbdmux0



Hi!
I assume you load the kernel module either manually with kldload or using kld_list in rc.conf, not by loading it from the loader? So there is two bugs? One bug is that the kernel hangs while booting, and the other is that you get a black screen when loading the drm module after the kernel is mostly done booting?

Regards
--
Niclas
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