Messages in this thread | ![/](/images/icornerl.gif) | | From | Neil Brown <> | Date | Thu, 30 Jan 2003 22:21:48 +1100 | Subject | Re: 2.5.59 NFS server keeps local fs live after being stopped |
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On Wednesday January 29, mikpe@csd.uu.se wrote: > Neil Brown writes: > > On Wednesday January 29, mikpe@csd.uu.se wrote: > > > Kernel 2.5.59. A local ext2 file system is mounted at $MNTPNT > > > and exported through NFS V3. A client mounts and unmounts it, > > > w/o any I/O in between. The NFS server is shut down. Nothing in > > > user-space refers to $MNTPNT. > > > > > > The bug is that $MNTPNT now can't be unmounted. umount fails with > > > "device is busy". A forced umount at shutdown fails with "device > > > or resource busy" and "illegal seek", and leaves the underlying > > > fs marked dirty. > > > > > > I can't say exactly when this began, but the problem is present > > > in 2.5.59 and 2.5.55. 2.4.21-pre4 does not have this problem. > > > > How do you shut down the nfs server? > > /etc/rc.d/init.d/nfs stop > which basically does a kill on rpc.mountd, nfsd, and rpc.quotad > (standard RH8.0 user-space) > > I've checked that all *nfs* processes are gone. > > > Is anything in /proc/fs/nfs/export after the shutdown? > > Except for the two header lines, it's empty.
Ok, it defaintely sounds like a leak. I'll be back at my desk on Monday and I will try to reproduce it and explore the situation then.
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