Date: Mon, 21 May 2001 21:32:15 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: freebsd-alpha@FreeBSD.ORG Cc: John Baldwin <jhb@FreeBSD.ORG>, Alfred Perlstein <bright@rush.net> Subject: RE: state of -current Message-ID: <15113.49567.885902.155179@grasshopper.cs.duke.edu> In-Reply-To: <15113.25584.137152.821338@grasshopper.cs.duke.edu> References: <15113.16250.74238.202983@grasshopper.cs.duke.edu> <XFMail.010521111146.jhb@FreeBSD.org> <15113.25584.137152.821338@grasshopper.cs.duke.edu>
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Andrew Gallatin writes: > > John Baldwin writes: > > > > > When doing this, I noticed that non-SMP alpha kernels will no longer > > > boot multi-user due to a recently forked process showing up a > > > 'curproc' during a hardclock intr. The process hasn't been fully > > > setup and accessing some fields in its proc struct causes a trap with > > > a stack like this: > > <...> > > > Well, my alpha is running a UP kernel that is after the last big SMP commmit > > where I shuffled things around to MI places and what not. Right now I'm still > > trying to review Alfred's patch. Once vm is back to working at all I'll try > > and look at this one as it may be my fault. > > I think I may be going crazy. I can no longer get this to happen. > Booting a kernel that triggered it yesterday no longer triggers it > today. Ahhhhhhaa! > I think I've finally figured things out:. mfs and a mismatched kernel/userland strikes again I've been booting my test kernels on a 4.3 box. With an mfs mount in /etc/fstab and a 4.3 mount_mfs sitting in /sbin. As soon as the mfs mount occurs, things go to hell in a handbasket and lots of memory gets trashed. I don't know why it doesn't happen for SMP kernels and pre SMP integration kernels -- we just "lucky" and some other memory is trashed there, I guess. At any rate, -current seems to work on alpha. Sorry for blaming this on the SMP integration work. Boy, do I feel dumb. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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