Date: Sat, 31 May 2008 23:05:24 +0200 From: "Dominique Goncalves" <dominique.goncalves@gmail.com> To: "Mario Lobo" <mlobon@ig.com.br> Cc: freebsd-questions@freebsd.org Subject: Re: downgrading /sys/src Message-ID: <7daacbbe0805311405k2614a519p58c4d731c3f5ef1d@mail.gmail.com> In-Reply-To: <200805311610.51979.mlobon@ig.com.br> References: <200805311610.51979.mlobon@ig.com.br>
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Hi, On 5/31/08, Mario Lobo <mlobon@ig.com.br> wrote: > This may sound wierd but let me explain why. > > On last may/26, I added a Sound Blaster Live to my machine and I wanted = to > activate the midi interface of the emu10kx driver. I know there were some > memory and timming problems but I wanted to experiment. So I did a csup t= o > 7_CURRENT (which is the tag I always use) then edited emu10kx to coment o= ut > the #if 0 that excludes the midi code. I took the oportunity to coment th= e > drivers I did not need to make the kernel smaller. Recompiled and loaded > emu10kx from loader.conf. the Kernel crashed right after the acpi_hpet > driver load. But by loading emu10kx later, there was no crash and SB boa= rd > worked fine. > > A hunch told me to save kernel.old so I moved it to kernel.good which is: > FreeBSD lobo 7.0-STABLE FreeBSD 7.0-STABLE #1: Thu May 22 18:32:28 BRT 20= 08 > root@lobo:/usr/src/sys/i386/compile/LOBO i386 > > After that I went on to make some DVD backups with k3b which ALWAYS worke= d > fine and now, after this upgrade, k3b keeps crashing without finishing. > Software and device buffers usage behaved erratically, and even if it doe= sn't > crash, it stops in around 30% with a write error. I lost a few DVDs, sinc= e I > suspected the DVD+RW may have had something to do with the problem. I > recompiled k3b (and the other ports around it) but results were the same. > > Anyway, after several unsuccessful attempts to correct the problem by > removing/re-adding kernel drivers, recompiles and even removing the SB bo= ard, > I decided to move /boot/kernel to kernel.new, and copied kernel.good to > kernel and voil=E1 ! Everything went back to normal and worked fine! > > What I want to do is to make a copy of my current /src/sys, revert it bac= k to > what it was in may/22 (kernel.good) and compare it with the current /src/= sys > to see what changed that provoked this behavior. I suspect of ata and mem= ory > handling changes but it's just a guess. I'd have to have both sources to > compare. > > So my question is: How can I get my /src/sys back to what it was in may/2= 2? > can this be done? You could use the 'date=3D' option in your stable-supfile: *default release=3Dcvs tag=3DRELENG_7 date=3D20080522000000 man 1 csup for more details Hope this helps Regards. > sorry for the long post and thanks > -- > Mario Lobo > http://www.mallavoodoo.com.br > FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!] (99,7% winedows FRE= E) > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" > --=20 There's this old saying: "Give a man a fish, feed him for a day. Teach a man to fish, feed him for life."
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