On Wed, Feb 20, 2013 at 02:29:37PM -0800, Xin Li wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > 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, > >>> > >>> It seems that fresh -HEAD would give an unusable kernel that > >>> 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. > >>> > >>> 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. > >> > >> 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 :-) > > > > How much 'the earlier today' is ? I.e., could you specify some > > revisions ? > > 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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