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Date:      Sun, 13 Dec 1998 00:02:27 -0200 (EDT)
From:      Joao Carlos Mendes Luis <jonny@jonny.eng.br>
To:        des@flood.ping.uio.no (Dag-Erling Smorgrav)
Cc:        dillon@FreeBSD.ORG, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/kern vfs_syscalls.c
Message-ID:  <199812130202.AAA23834@roma.coe.ufrj.br>
In-Reply-To: <xzppv9pgemn.fsf@flood.ping.uio.no> from Dag-Erling Smorgrav at "Dec 12, 98 11:49:20 pm"

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#define quoting(Dag-Erling Smorgrav)
// Matt Dillon <dillon@FreeBSD.ORG> writes:
// >       Wakeup anyone waiting on a mount point prior to returning from umount,
// >       whether an error occurs or not.  Fixes a stat/NFS-umount race and other
// >       potential future problems.  Fix taken from bug/pr which also indicated
// >       that the same fix has already been applied to OpenBSD and NetBSD.
// 
// OBTW, while somebody's looking into NFS and mount, I still (with a
// kernel from mid-November) get panics when mounting a CD-ROM with
// mountd running. I can try to get a kernel dump with a newer kernel if
// anybody's interested.
// 
// Speaking of kernel dumps, what happens to physical memory pages when
// they're not in use? Are they zeroed? If not, is it possible to add a
// kernel option that zeroes out unused pages, or fills them with a fixed
// pattern (e.g. f001f001 og deadbeef)? That would make kernel dumps more
// compressible...

And, maybe, detect bugs due to lost pointers earlier.

					Jonny

--
Joao Carlos Mendes Luis            M.Sc. Student
jonny@jonny.eng.br                 Universidade Federal do Rio de Janeiro
"This .sig is not meant to be politically correct."

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