Date: Mon, 6 Jul 1998 18:58:50 +0100 From: "Alton, Matthew" <Matthew.Alton@anheuser-busch.com> To: "'Erick Engelke'" <erick@dark.uwaterloo.ca> Cc: "'hackers@freebsd.org'" <hackers@FreeBSD.ORG>, "'freebsd-fs@freebsd.org'" <freebsd-fs@FreeBSD.ORG>, "Smallie, Scott" <Scott.Smallie@anheuser-busch.com> Subject: RE: lfs Message-ID: <31B3F0BF1C40D11192A700805FD48BF901776600@STLABCEXG011>
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> -----Original Message----- > From: Erick Engelke [SMTP:erick@dark.uwaterloo.ca] > Sent: Friday, July 03, 1998 4:54 PM > To: Alton, Matthew > Subject: RE: lfs > > > > On Tue, 30 Jun 1998, Alton, Matthew wrote: > > > Like others in the past, I'm interested in seeing LFS completed. > > > I've been mucking around with this for awhile. We should cooperate. > > Sure, but this will be a bit embarrassing for the first message or > two. > > The first steps I've taken were obvious... even for me as a FreeBSD > kernal > new guy (all my other kernel work has been various RTOS, Microsoft and > OS/2)... compile this as a LKM and try her out. > > I see that a newlfs'd partition shows up nicely with the ifile log > file > and lost+found. But as soon as sync happens, whether timed or due to > a > umount or file i/o, we have a panic. [Alton, Matthew] Are you getting a core dump for kgdb? I don't have a scratch box running this code right now. I've got a nasty old 486/33 almost up for testing purposes but its imbecilic BIOS won't boot with an NE2000 clone in the bus. > > Since successive boots don't notice the updates, I'm assuming the log > is > never being updated. Possibly the kernel pages are not mapped to > backing > store... as a first guess. I'll try lfsdump to investigate. > > I've started adding debugging code to figure out how far we get. > Hmmm, where do printfs send their output... nowhere I happen to be > looking? [Alton, Matthew] I thought they went to /dev/console but the relevant descriptors may be closed when lfs is using them. Can anybody provide the correct poop on kernel-mode debug output to /dev/console before I go and spontaneously reinvent the wheel? > Also, how do I make this pop into the kernel debugger? [Alton, Matthew] See http://www.freebsd.org/handbook/handbook297.html#627 > Sorry for the startup questions. [Alton, Matthew] Don't apologise, for crying out loud. I've been starting up for 17 years ;-) > Erick > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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