Tips on remote debugging for filesystem code

Aijaz Baig aijazbaig1 at gmail.com
Mon Aug 28 13:33:07 UTC 2017


HI Gary

Just checked that. Indeed that was the case. In addition I was running
FreeBSD on top of vmware hypervisor and had not allowed hardware
acceleration features pass through to the FreeBSD VM. It is now working!
Need to explore more on getting it to connect to GDB

Perhaps you'll see a thread soon for it (Has anything worked perfectly for
the first time ever?? ;) )!

On Mon, Aug 28, 2017 at 6:56 PM, Gary Palmer <gpalmer at freebsd.org> wrote:

> On Mon, Aug 28, 2017 at 01:12:09PM +0530, Aijaz Baig wrote:
> > Thanks a lot bakul. Will certain look into this
> >
> > Nevertheless I got hold of a PowerEdge 320 system which DOES have a
> POPCNT
> > instruction which shows support for V-x support via EPT but I still get
> the
> > same error there
> >
> > sh /usr/share/examples/bhyve/vmrun.sh -c 1 -m 2048M -t tap0 -d
> guest.img -i
> > -I FreeBSD-10.3-RELEASE-amd64-bootonly.iso fbsd10
> > Launching virtual machine "fbsd10" ...
> > vm_create: Device not configured
> >
> > dmesg:
> > vmx_init: processor does not support VMX operation
> >
> > cat /var/run/dmesg.boot | grep -i popcnt
> >
> > Features2=0xffba2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,
> SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND,HV>
> >
> > Features2=0xffba2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,
> SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND,HV>
> >
> > Any ideas?
>
> Hi,
>
> Check the BIOS for virtualisation or other related options.  Some BIOSes
> have
> the ability to turn those features off, even if the processor normally
> supports them
>
> Regards,
>
> Gary
>



-- 

Best Regards,
Aijaz Baig


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