Date: Thu, 21 Feb 2013 12:49:45 -0500 From: Jung-uk Kim <jkim@FreeBSD.org> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org, Xin Li <delphij@delphij.net>, Navdeep Parhar <nparhar@gmail.com> Subject: Re: -CURRENT userland regression Message-ID: <51265E39.2070109@FreeBSD.org> In-Reply-To: <201302211031.31599.jhb@freebsd.org> References: <51254ACE.2030100@delphij.net> <51254C7E.9050705@gmail.com> <201302211031.31599.jhb@freebsd.org>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2013-02-21 10:31:31 -0500, John Baldwin wrote: > On Wednesday, February 20, 2013 5:21:50 pm 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 :-) > > "safe mode" toggles a few different things IIRC, can you narrow it > down to a single setting? kern.smp.disabled=1 Jung-uk Kim -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQEcBAEBAgAGBQJRJl45AAoJECXpabHZMqHO/I0IALhqfW2uSY+IoCOvtSN7eQGM IRmzRiFtoz7sXb5OiNlHjwZdRcQR4t6656EUyItDjr3XbXvnGaNL/nk+B9moSgSi NmHpEWQ4yNTJKYUAnvw4NGHKkiOpmNsrAA5i8EEQQesQGuwke0eYaeHMb5R5Wvsu lyWTB0ZH1XV8VehvTir3vo7MWaGjYYp8l09YpaDUYTpn364Fx+jBgsG5qKWdrHMn l/TwMLmWB6Mij2K8+FeS9PIijFKhaTh2s5xa1/xX3vFuR0mhMfNm7OfadXy1KKsL YcTm4Q0QYDkfoxwoS6+AWKVk1LMrF8vah8kHalKp5JCtNv3p1jr5RupalYI9zgo= =1D9R -----END PGP SIGNATURE-----
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