-CURRENT userland regression

Xin Li delphij at delphij.net
Wed Feb 20 23:16:47 UTC 2013

Hash: SHA512

On 02/20/13 14:37, Konstantin Belousov wrote:
> 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.

I think it's unlikely -- I have r247057 of sys/ which worked fine...

userland 246957 works good by the way.

- -- 
Xin LI <delphij at delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die


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