On 11/11/09 10:56 PM, Ed Schouten wrote:
Hi,
* Jun Kuriyama<kuriy...@freebsd.org> wrote:
Can you test with these patches? Testing on only one of both system
is enough. "patch-1" forces disabling CLFLUSH feature even if SS bit
exists. "patch-2" forces no CLFLUSH tweak. I'd like to know with
which patch your system can live.
For some reason they both seem to boot. Yikes. I've done some more
testing and it seems the old version even hangs if I add some additional
printf's above and below, which makes me believe the problem is a bit
more complex than we realize...
FWIW, this also breaks my Intel Atom 330 setup.
CPU: Intel(R) Atom(TM) CPU 330 @ 1.60GHz (1606.47-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x106c2 Stepping = 2
Features=0xbfe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x40e31d<SSE3,DTES64,MON,DS_CPL,TM2,SSSE3,CX16,xTPR,PDCM,<b22>>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
r199066 boots, r199067 does not.
I get a page fault:
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
SMP: AP CPU #3 Launched!
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x288
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff802b014e
stack pointer = 0x28:0xffffffff8083db30
frame pointer = 0x28:0xffffffff8083db50
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
You can have a look at the backtrace here:
http://smeets.im/~flo/panic_20091109.jpg
I also tried r199215, it does not help. The back trace looks almost the
same (http://smeets.im/~flo/panic_20091112.JPG)
I can try the proposed patches tonight if it helps.
Cheers,
Florian
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