Patch Name: PHKL_9939 Patch Description: s700 10.24 (VVOS) data corruption on PA-8000 based systems Creation Date: 97/01/24 Post Date: 97/01/30 Hardware Platforms - OS Releases: s700: 10.24 Products: N/A Filesets: OS-Core.CORE-KRN Automatic Reboot?: Yes Status: General Release Critical: Yes PHKL_9939: CORRUPTION Path Name: /hp-ux_patches/s700/10.X/PHKL_9939 Symptoms: PHKL_9939: Repackaged HP-UX patch PHKL_9365 for VVOS. Based on HP-UX patch PHKL_9365: The only symptom is random, spurious, rare instances of data corruption, usually in I/O to devices. This is rare enough (and masked by normal system configurations) that it has not been observed in customer systems, only within HP. Defect Description: PHKL_9939: Repackaged HP-UX patch PHKL_9365 for VVOS. Based on HP-UX patch PHKL_9365: A defect in the kernel causes some processor data cache lines not to be flushed to memory prior to I/O operations. This can cause stale data to corrupt the user or system data. This defect only affects PA-8000-based systems (supported with HP-UX 10.20 and later releases). All systems based on earlier SPUs (PA-7200, PA-7100, PA-7150, for example) are not affected. This problem is rare; so far it has not been detected on customer systems, only within HP. However, all customers with PA-8000 systems are advised to apply the appropriate patch. SR: 4701342147 Patch Files: /usr/conf/lib/libhp-ux.a(asm_vm.o) what(1) Output: /usr/conf/lib/libhp-ux.a(asm_vm.o): asm_vm.s $Date: 96/08/15 15:57:13 $ $Revision: 1.60.98.8 $ PATCH_10.20 (PHKL_9365) cksum(1) Output: 2029182483 17640 /usr/conf/lib/libhp-ux.a(asm_vm.o) Patch Conflicts: None Patch Dependencies: None Hardware Dependencies: None Other Dependencies: None Supersedes: None Equivalent Patches: PHKL_9365: s700: 10.20 PHKL_9366: s800: 10.20 PHKL_9936: s800: 10.24 Patch Package Size: 80 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_9939 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHKL_9939.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_9939.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_9939. 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_9939.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_9939.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: None