Re: Revision: 247040: kernel crashes with funny blinking characters on console on Ivy-Bridge CPUs

On 02/20/13 18:17, Ruslan Makhmatkhanov wrote:
> O. Hartmann wrote on 20.02.2013 18:36:
>> Compiling most recent sources of CURRENT with Revision: 247040 results
>> in a kernel crash with funny blinking characters on the screen. This
>> happens on all systems with different amd64 Intel CPU generations at
>> this very moment.
>>
>> Last working sources (reverting and booting kernel.old) is in my case
>>
>>
>>   FreeBSD 10.0-CURRENT #0 r246949: Mon Feb 18 22:18:42 CET 2013
>>
>>
>> Does anyone also experience this?
>>
>> Another remote experimental box, equipted with a Intel Q6600 CPU, is
>> crashed, I have to investigate this when I get to the lab later. It
>> seems not to be related only to Sandy-Bridge-E/Ivy-Bridge CPUs.
>>
>>
>> Regards,
>> Oliver
> 
> I just updated from r246618 to r247044 (kernel only, built with old
> world) and everything works as expected. I have:
> CPU: Intel(R) Core(TM) i5-2430M CPU _at_ 2.40GHz (2394.62-MHz K8-class CPU)
> 
> I may build new world and build new kernel with it if it's may help to
> reproduce.
> 

My C2D Q6600 quits with a trap 16 or 18 (I have all withness and debug
support deactivated at the moment).
The Intel i3-3220 crashes with blinking characters on the screen (I use
the built-in GPU for console displaying).
A C2D 8400 - same setup, crashes also very early while booting.

The whole system/world is built with CLANG, this is the setting of the
/etc/src.conf:

CPUTYPE?=               native
#
CFLAGS+=                -O3 -pipe -march=native
# for Kernel
COPTFLAGS+=             -O3 -pipe -march=native
#
CXXFLAGS+=              -stdlib=libc++
CXXFLAGS+=              -std=c++11
#
WITH_CLANG_EXTRAS=      YES
WITH_CLANG_FULL=        YES
WITH_LLVM=              YES
WITH_LLVM_EXTRAS=       YES
#
WITH_LIBCPLUSPLUS=      YES
#
WITH_BIND_LARGE_FILE=   YES
WITH_BIND_SIGCHASE=     YES
WITH_BIND_LIBS=         YES
#
WITH_IDEA=              YES
#
#WITH_ICONV=            YES
WITH_BSD_GREP=          YES
WITH_BSDCONFIG=         YES
WITH_BSD_SORT=          YES
WITH_BSD_PATCH=         YES
#
#WITH_OFED=             YES
WITH_NAND=              YES
WITH_NMTREE=            YES
#WITH_BMAKE=            YES
#WITH_CTF=              YES
#
MALLOC_PRODUCTION=      YES
#
PORTS_MODULES=          emulators/virtualbox-ose-kmod
#PORTS_MODULES+=                x11/nvidia-driver



I have a custom kernel, will try also the GENERIC and report in later.


Oliver