Re: ddb fails to write breakpoint

[David Laight <david%l8s.co.uk@localhost>]

On Tue, May 01, 2012 at 03:19:13PM +0200, Jean-Yves Migeon wrote:
> Le 01/05/12 08:38, David Laight a ?crit :
> >Didn't dump the PTE contents.
> >
> >I was trying to put a breakpoint onto netbsd32_sendsig which is a
> >'nowhere specific' code address (and didn't happen to be a page boundary).
> >Even with my change, I still saw a 'fault inside ddb' message when
> >I continued from the breakpoint - didn't look to see exactly where.
> >
> >Might be cpu family related?
> >I disabled all but one of the cpu cores to make life less confusing!
> >made no difference.
> 
> Also a possibility. Could you send me the result of 'cpuctl identify 0', 
> please?

cpu0: Intel Pentium Pro, II or III (686-class), 3511.64 MHz, id 0x206a7
cpu0: features  0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features  0xbfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR>
cpu0: features  0xbfebfbff<SSE,SSE2,SS,HTT,TM,SBF>
cpu0: features2 0x179ae3bf<SSE3,PCLMULQDQ,DTES64,MONITOR,DS-CPL,VMX,EST,TM2>
cpu0: features2 0x179ae3bf<SSSE3,CX16,xTPR,PDCM,PCID,SSE41,SSE42,POPCNT,B24>
cpu0: features2 0x179ae3bf<AES,XSAVE,AVX>
cpu0: features3 0x28100800<SYSCALL/SYSRET,XD,EM64T>
cpu0: features4 0x1<LAHF>
cpu0: "Intel(R) Core(TM) i7-2700K CPU @ 3.50GHz"
cpu0: ITLB 64 4KB entries 4-way
cpu0: DTLB 64 4KB entries 4-way
cpu0: Initial APIC ID 0
cpu0: Cluster/Package ID 0
cpu0: Core ID 0
cpu0: SMT ID 0
cpu0: family 06 model 0a extfamily 00 extmodel 02 stepping 07
cpu0: UCode version: ?

        David

-- 
David Laight: david%l8s.co.uk@localhost