boot problems?

[Krassimir Slavchev]

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Hi All,

I am trying to boot 7.0-PRERELEASE on my notebook from USB memory stick.
With the original BTX i have "BTX halted". The only way to boot was
using: http://people.freebsd.org/~kib/realbtx/realbtx.2.patch
With this patch the kernel is loaded but something remains wrong:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic = 00
fault virtual address   = 0xbff1e000
fault code              = supervisor write, page not found
instruction pointer     = 0x20:0xc0a892df
stack pointer           = 0x28:0xc5820cf4
frame pointer           = 0x28:0xc5820d0c
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 ()
[thread pid 0 tid 0]
Stopped at       pmap_map+0x3f: movl    %eax,PTmap(,%edx,4)
db>bt
Tracing pid 0 tid 0 td 0xc0c2b210
pmap_pmap(c5820d64, 7da85000,7fe80000,3,c5c45000,...) at pmap_map+0x3f
vm_page_startup(c5c86000,a,c5820d88,c0725716,0,...) at vm_page_startup+0x224
vm_mem_init(0,581ec00,581e000,581e000,5828000,...) at vm_mem_init+0x18
begin() at begin+0x2c
db>

I have seen similar panic with the original BTX on a dual core machine
when tried to boot from USB.

Any ideas what may cause this?

Thanks in advance

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