DragonFly kernel List (threaded) for 2010-09
Re: MADT enumeration for x86_64
>Am 24.09.2010 01:10, schrieb Matthew Dillon:
>> Heh. My test box froze solid with the MADT stuff. I had to put
>> hw.madt_probe_test=1 in my /boot/loader.conf to get the system
>> to boot. (Phenom x 6 Gigabyte 880GMA-UD2H MB).
>> At the moment I'm not sure where the problem is.
>Same on my Phenom x 4 ASUS board. With hw.madt_probe_test=1 it started
>to boot, but the boot was very slow and sluggish. After it completed to
>boot, and I ran a few programs, it somehow deadlocked without giving any
>message on the console.
>There are some more patches by Sephe which I'll apply to x86_64.
This recent patch may explain why the latest x86_64 developmental
snapshot crashes in a 32-bit version of VirtualBox 3.2.8. This was
covered in IRC, but the Sept 27th snapshot crashes very soon after the
kernel loads in the 32-bit version of VirtualBox. I confirmed this on
both OpenSolaris and Windows XP. Apparently it does not crash in a
64-bit version of Vista according to swildner.
It was suggested that I escape to the loader and set
hw.madt_probe_test=1 before booting the kernel. I did this, and I was
able to boot the snapshot. This is definitely a regression because I've
been running 64-bit DFly 2.6 release on a 32-bit VBox for months without
I imagine anyone with access to a 32-bit version of Vbox could reproduce
what I'm seeing easily.