date: 1996/11/20 20:02:54; author: pjd; state: Exp; lines: +7 -4
In nfsrv_access(), if VOP_ACCESS() returns an error and the
error == EPERM or its not the owner doing the access, return the error.
date: 1995/11/30 20:37:53; author: cp; state: Exp; lines: +3 -3
Change splsoftclock() to splnet();
Make nfsrv_getstream create two copies of data when
splitting up an mbuf rather than two references to the
same external buffer. The symptom this fixes is client
hangs.
date: 1996/10/16 00:06:05; author: ewv; state: Exp; lines: +5 -3
Clear pending signal when an unmount fails, this allows us another chance
at the umount after a short sleep. The fixes a problem where /usr is
mounted via nqnfs and the system hangs on shutdown since the umount()
always fails with EBUSY (inetd is still busy on usr) and since we don't
clear the signal we end up stuck looping and never give inetd a chance to
catch its SIGKILL.
date: 1996/10/23 18:22:14; author: donn; state: Exp; lines: +12 -7
Kirk's changes to prevent races when unmounting. (1) Unmount()
and vfs_unmountall() now call vfs_busy() so that they participates
in the mount structure locking scheme. Dounmount() calls vfs_unbusy()
to unlock things, and makes sure to wake up waiters if there's an
error. (2) The MFS and NQNFS daemons also now use vfs_busy() when
unmounting filesystems. Kirk restructured the code so that a
successful unmount by another process won't leave the possibility
that a daemon might reference a mount structure that has been freed.
date: 1996/09/06 03:00:31; author: donn; state: Exp; lines: +1 -2
Because NFS doesn't implement vnode locking, nfs_inactive() doesn't really
have the vnode locked and hence it can't reliably access the vnode after
it performs a blocking operation. We remove one blocking call and push
the no-op VOP_UNLOCK higher so that we don't access the vnode after we
delete the sillyrename file. This should prevent crashes we've seen in
which the vnode turned into a UFS vnode and caused a panic in ufs_unlock()
when we tried to 'unlock' it.
date: 1996/09/25 19:15:21; author: cp; state: Exp; lines: +4 -0
Kirk's change to not corrupt files after a delete.
date: 1996/11/08 19:53:45; author: donn; state: Exp; lines: +16 -4
Krik's change to solve the paradox that vclean() calls nfs_inactive()
with VXLOCK set on the vnode, and nfs_inactive() was calling vget()
to get a reference on the vnode, which in turn hung on VXLOCK.
Nfs_inactive() now checks v_usecount to make sure that the vnode
is not coming from vclean() before it does a vget().
when paging on Sun4m machines with SuperSPARC processors. Essentially,
the copy/zero operations were done via uncached memory accesses, which
bypassed the snooping logic of the write-back caches, causing stale data
to be copied or generated.
Pointed out by Chris Torek <torek@bsdi.com>
- Implement a simple quirks framework for changers.
- Add a quirk for the Spectra 9000 8mm tape library; it requires a
slightly-longer-than-1-minute delay to take tape inventory. Many
thanks to David Webster at Cygnus Solutions for testing this for me.
to describe here. This should fix the problems with "hanging processes"
people have seen since the original object collapse code was committed.
From Charles Hannum <mycroft@netbsd.org>
1. ${.*} variables did not get expanded in dependencies.
2. expanded ${.*} variables in .USE dependencies can cause tree
restructuring; handle it.
3. in compat mode, expand .USE before evaluating the list of targets,
instead of doing .USE expansions on demand, because they can cause
tree restructuring.
fvdl