Re: -CURRENT userland regression
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On Wed, Feb 20, 2013 at 02:29:37PM -0800, Xin Li wrote:
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>=20
> On 02/20/13 14:25, Konstantin Belousov wrote:
> > On Wed, Feb 20, 2013 at 02:21:50PM -0800, Navdeep Parhar wrote:
> >> On 02/20/13 14:14, Xin Li wrote:
> >>> Hi,
> >>>=20
> >>> It seems that fresh -HEAD would give an unusable kernel that=20
> >>> overwrites screen buffer in a way making it impossible to
> >>> debug. Using an old world source to do 'make buildworld
> >>> buildkernel' results in a (mostly: I have some strange USB
> >>> issue right now and still looking for the cause) usable
> >>> kernel.
> >>>=20
> >>> For now my known good combination is world 246858 with kernel
> >>> 247057. I'm still trying to find out which revision have broke
> >>> the stuff.
> >>=20
> >> I ran into this earlier today. Selecting "safe mode" in the boot
> >> loader menu seems to work around the problem on my system. Now I
> >> will not reboot until I see a fix for this in head :-)
> >=20
> > How much 'the earlier today' is ? I.e., could you specify some
> > revisions ?
>=20
> It would take some time to bi-sect as one needs to do full
> world/kernel build. The only thing I can say definitely is that
> something from userland was broken within the (246858,247057] range.
> I'm compiling 246957 right now.
My first guess would be r247047, but I did booted the kernel+world
with this change applied, on amd64. Hm, I booted on the machine
with serial console.
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