3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
82 lines
2.9 KiB
Text
82 lines
2.9 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
|
|
Hash: SHA1
|
|
|
|
FreeBSD-EN-05:04.nfs Errata Notice
|
|
The FreeBSD Project
|
|
|
|
Topic: NFS Client may panic when encounted errors
|
|
|
|
Category: core
|
|
Module: nfsclient
|
|
Announced: 2005-12-19
|
|
Credits: Mohan Srinivasan, Xin LI
|
|
Affects: FreeBSD 6.0-RELEASE
|
|
Corrected: 2005-12-19 10:58:58 UTC
|
|
|
|
I. Background
|
|
|
|
The Network File System (NFS) allows a system to share directories and files
|
|
with others over a network. By using this, users and programs can access
|
|
files on remote systems almost as if they were local files.
|
|
|
|
II. Problem Description
|
|
|
|
Due to a locking issue in nfs_lookup() a call to vrele() might be made
|
|
while holding the vnode mutex, which results in kernel panic when doing
|
|
VFS operations under certain load patterns.
|
|
|
|
III. Impact
|
|
|
|
NFS clients that encountered the load pattern would crash and reboot.
|
|
|
|
IV. Solution
|
|
|
|
Do one of the following to update the source tree:
|
|
|
|
1) Upgrade your affected system to the RELENG_6_0 errata branch dated
|
|
after the correction date using cvsup(1) or cvs(1). This is the
|
|
preferred method.
|
|
|
|
2) Obtain the updated files using the cvsweb interface. Cvsweb is a
|
|
Web interface to the CVS repository. The URL to the general
|
|
interface is "http://cvsweb.freebsd.org/". You can obtain any of
|
|
the source files for the RELENG_6_0 branch by going to the src
|
|
directory ("http://cvsweb.freebsd.org/src") and then selecting
|
|
the "RELENG_6_0" branch tag. With the branch tag set navigate
|
|
to the files listed below in the "Correction details" section and
|
|
download them, making sure you get the correct revision numbers.
|
|
Copy the downloaded files into your /usr/src tree.
|
|
|
|
If using the second procedure you should make sure you have used that
|
|
same procedure to download all previous Errata Notices and Security
|
|
Advisories. We strongly discourage this procedure due to the problems
|
|
that may be caused by not doing that - using the first procedure takes
|
|
care of making sure all updates get applied.
|
|
|
|
Then follow the normal procedures for rebuilding/reinstalling the kernel.
|
|
Details about rebuilding/reinstalling are available here:
|
|
|
|
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
|
|
|
|
V. Correction details
|
|
|
|
The following list contains the revision numbers of each file that was
|
|
corrected in FreeBSD.
|
|
|
|
- ---------------------------------------------------------------------------
|
|
RELENG_6_0
|
|
|
|
Revision Changes Path
|
|
1.416.2.3.2.6 +5 -0 src/UPDATING
|
|
1.69.2.8.2.2 +1 -1 src/sys/conf/newvers.sh
|
|
1.258.4.1 +1 -1 src/sys/nfsclient/nfs_vnops.c
|
|
|
|
- ---------------------------------------------------------------------------
|
|
|
|
-----BEGIN PGP SIGNATURE-----
|
|
Version: GnuPG v1.4.2 (FreeBSD)
|
|
|
|
iD8DBQFDujwhFdaIBMps37IRAiPOAKCC9BmZhzFEBm6/kzKMDpZVXk7X/QCfTmsY
|
|
kHH+tM9KBV1Vau80d0G3vk4=
|
|
=UvNX
|
|
-----END PGP SIGNATURE-----
|