Patch Name: PHKL_9155 Patch Description: s700 10.20 NFS Kernel General Release & Performance Patch Creation Date: 96/11/27 Post Date: 96/12/05 Hardware Platforms - OS Releases: s700: 10.20 Products: N/A Filesets: OS-Core.CORE-KRN Automatic Reboot?: Yes Status: General Superseded Critical: No (superseded patches were critical) PHKL_8544: HANG Path Name: /hp-ux_patches/s700/10.X/PHKL_9155 Symptoms: PHKL_9155: 1. Add write-gathering support for NFS servers. 2. The length of a timeout for an NFS request may become extremely long (on the order of minutes). PHKL_8544: 1. Data page fault in an MP environment due to synchronization problems with the client's biod's. 2. A panic within kernel RPC (in svc_getreqset) in an MP environment is generated due to another synchronization problem. 3. System hangs caused in large systems. Defect Description: PHKL_9155: 1. NFS write performance can be improved by doing gather writes at the server. This patch implements the NFS portion of gather writes. 2. The maximum timeout values defined in RPC were very long, and neither RPC nor NFS values matched that of SUN. PHKL_8544: 1. The kernel's biod support code did not sufficently protect against MP race conditions. 2. The RPC processor affinity implementation used by nfsd's was not sufficently protected against MP race conditions. 3. Incorrect usage of the dnlc purge functions. SR: 4701341669 5003344226 5003319145 Patch Files: /usr/conf/lib/libnfs.a(clnt_kudp.o) /usr/conf/lib/libnfs.a(nfs_server.o) /usr/conf/lib/libnfs.a(nfs_subr.o) /usr/conf/lib/libnfs.a(nfs_vnops.o) /usr/conf/lib/libnfs.a(svc.o) what(1) Output: /usr/conf/lib/libnfs.a(clnt_kudp.o): clnt_kudp.c $Date: 96/12/03 15:05:38 $ $Revision: 1 .9.112.3 $ PATCH_10.20 PHKL_9155 /usr/conf/lib/libnfs.a(nfs_server.o): nfs_server.c $Date: 96/12/03 11:41:04 $ $Revision: 1.3.112.9 $ PATCH_10.10 PHKL_9155 /usr/conf/lib/libnfs.a(nfs_subr.o): nfs_subr.c $Date: 96/12/03 15:09:23 $ $Revision: 1. 1.112.10 $ PATCH_10.20 PHKL_9155 /usr/conf/lib/libnfs.a(nfs_vnops.o): nfs_vnops.c $Date: 96/12/03 15:09:28 $ $Revision: 1 .3.112.14 $ PATCH_10.20 PHKL_9155 /usr/conf/lib/libnfs.a(svc.o): svc.c $Date: 96/12/03 15:05:29 $ $Revision: 1.8.112 .6 $ PATCH_10.20 PHKL_9155 cksum(1) Output: 2064019887 11528 /usr/conf/lib/libnfs.a(clnt_kudp.o) 643927181 23792 /usr/conf/lib/libnfs.a(nfs_server.o) 4175498463 20588 /usr/conf/lib/libnfs.a(nfs_subr.o) 3968810287 35388 /usr/conf/lib/libnfs.a(nfs_vnops.o) 86315623 5816 /usr/conf/lib/libnfs.a(svc.o) Patch Conflicts: None Patch Dependencies: s700: 10.20: PHKL_9153 PHKL_9361 Hardware Dependencies: None Other Dependencies: None Supersedes: PHKL_8544 Equivalent Patches: PHKL_9156: s800: 10.20 Patch Package Size: 160 Kbytes Installation Instructions: Please review all instructions and the Hewlett-Packard SupportLine User Guide or your Hewlett-Packard support terms and conditions for precautions, scope of license, restrictions, and, limitation of liability and warranties, before installing this patch. ------------------------------------------------------------ 1. Back up your system before installing a patch. 2. Login as root. 3. Copy the patch to the /tmp directory. 4. Move to the /tmp directory and unshar the patch: cd /tmp sh PHKL_9155 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHKL_9155.depot 5b. For a homogeneous NFS Diskless cluster run swcluster on the server to install the patch on the server and the clients: swcluster -i -b This will invoke swcluster in the interactive mode and force all clients to be shut down. WARNING: All cluster clients must be shut down prior to the patch installation. Installing the patch while the clients are booted is unsupported and can lead to serious problems. The swcluster command will invoke an swinstall session in which you must specify: alternate root path - default is /export/shared_root/OS_700 source depot path - /tmp/PHKL_9155.depot To complete the installation, select the patch by choosing "Actions -> Match What Target Has" and then "Actions -> Install" from the Menubar. 5c. For a heterogeneous NFS Diskless cluster: - run swinstall on the server as in step 5a to install the patch on the cluster server. - run swcluster on the server as in step 5b to install the patch on the cluster clients. By default swinstall will archive the original software in /var/adm/sw/patch/PHKL_9155. If you do not wish to retain a copy of the original software, you can create an empty file named /var/adm/sw/patch/PATCH_NOSAVE. Warning: If this file exists when a patch is installed, the patch cannot be deinstalled. Please be careful when using this feature. It is recommended that you move the PHKL_9155.text file to /var/adm/sw/patch for future reference. To put this patch on a magnetic tape and install from the tape drive, use the command: dd if=/tmp/PHKL_9155.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: None