Patch Name: PHNE_16237 Patch Description: s700 10.20 ARPA Transport cumulative patch Creation Date: 98/08/19 Post Date: 98/08/28 Hardware Platforms - OS Releases: s700: 10.20 Products: N/A Filesets: OS-Core.CORE-KRN Networking.NET-KRN Automatic Reboot?: Yes Status: General Superseded Critical: Yes PHNE_16237: PANIC PHNE_15581: PANIC PHNE_14916: PANIC PHNE_14504: PANIC PHNE_13469: PANIC PHNE_13289: PANIC PHNE_13245: PANIC PHNE_12407: PANIC PHNE_11530: PANIC PHNE_9106: PANIC PHNE_9098: PANIC PHNE_9036: PANIC Path Name: /hp-ux_patches/s700/10.X/PHNE_16237 Symptoms: PHNE_16237: This patch replaces PHNE_15581 See Defect Description PHNE_15581: See Defect Description PHNE_14916: See Defect Description PHNE_14504: See Defect Description PHNE_13469: See Defect Description PHNE_13289: See Defect Description PHNE_13245: See Defect Description PHNE_12407: See Defect Description PHNE_11530: See Defect Description PHNE_9106: See Defect Description PHNE_9098: See Defect Description PHNE_9036: See Defect Description Defect Description: PHNE_16237: ( SR not found ; DTS number: INDaa22630 ) An error "Invalid argument" returned from setsockopt(): rc = setsockopt(tp->task_socket, level, opt, ptr, len) with the parms: tp->task_socket = 12; level = IPPROTO_IP; ==> 0 opt = IP_RECVDSTADDR; ==> 4103 len = 4; The socket() call parms are socket(domain, type, proto) where domain = AF_INET, type = SOCK _DGRAM, proto = 0 ( SR number: 5003396937 ; DTS number: INDaa29248 ) nettune does not support disabling of IP Directed broadcast forwarding. ( SR number: 5003423665 ; DTS number: INDaa30931 ) After an IP packet with source route or record route options is received, the system may panic in wait_for_lock_spinner() called from ip_rtaddr(), ip_output(), or elsewhere. ( SR number: 5003429464 ; DTS number: INDaa31420 ) The system panics with one of the two stacks (listed below) while running with AF_UNIX sockets. Either: panic() m_free() m_freem() uipc_usrreq() soo_stat() fstat_common() fstat() syscall() $syscallrtn() or: sounlock() mp_socket_unlock() uipc_usrreq() sosend() sendit() sendto() syscall() $syscallrtn() PHNE_15581: ( SR number: 5003417410 ; DTS number: INDaa30415 ) IP multicasting does not work in a SG environment after a local network interface switch. ( SR number: 5003417477 ; DTS number: INDaa30445 ) Network may hang indefinitely when ARP interrupt queue is full. When it happens, the netisr may be idle and yet the ARP input interrupt queue is also full. ( SR number: 5003418228 ; DTS number: INDaa30448 ) The UDP checksum may not be set on outgoing IP multicast datagrams. This may happen if the IP_MULTICAST_IF socket option has been used to set an outgoing interface which does not support the checksum-offload (CKO) feature, and the datagram would have otherwise been sent out an interface which does support CKO. PHNE_14916: ( SR number: 5003294777 ; DTS number: INDaa23011 ) netstat -m occasionally reports unbelievable statistics, e.g.: "4294967270 mapped pages in use" ( SR not found ; DTS number: INDaa30014 ) HP-UX does not have token ring multicast support for drivers that support multicasting. ( SR number: 5003409268 ; DTS number: INDaa30038 ) UDP datagrams are occasionally being dropped on MP machines running 10.20. An inbound UDP packet which is sent to a valid local port results in the system returning an ICMP_UNREACH_PORT ICMP message. This occurs when the system is sending a UDP packet from the local port at the same time that the inbound packet arrives. ( SR number: 5003411926 ; DTS number: INDaa30157 ) A panic can occur in sounlock() because of a race between two processes trying to access the same AF_UNIX socket. The stack trace is: sounlock unp_connect uipc_usrreq soconnect connect syscall PHNE_14504: ( SR number: 1653232538 ; DTS number: INDaa28825 ) The system panics when the Service Guard application is being stopped. ( SR number: 4701371914 ; DTS number: INDaa28993 ) HP-UX does not have support for a socket API interface to get the TCP state. ( SR number: 5003401802 ; DTS number: INDaa29743 ) The mbuf offset is not word-aligned. ( SR number: 5003408328 ; DTS number: INDaa29959 ) A system that has packets coming in on one interface type (i.e. Ethernet) and going out on another interface type (i.e. FDDI) can panic with a message of "m_free: freeing free mbuf". The stack trace is: panic+0x10 m_free+0x28 m_freem_train+0x1c unicast_ippkt+0x71c arp_resolve+0x288 lanc_if_output+0x48 ip_output+0x60c udp_output+0x1f8 ku_sendto_mbuf+0x8c svckudp_send+0x158 svc_sendreply+0x5c svckudp_send+0x158 svc_sendreply+0x5c PHNE_13469: ( SR number: 5003366906 ; DTS number: INDaa27509 ) Netstat -m displays an incorrect number of socket structures. ( SR number: 1653234245 ; DTS number: INDaa28951 ) When Service Guard requests a switch between two interfaces and the TARGET is not available, the ifnet structures may become corrupted. The system will crash when these structures are used later. ( SR number: 1653239764 ; DTS number: INDaa29253 ) If there is at least one IP packet on the ipintrq, one processor on an MP machine will do nothing but run netisr. Networking may be slow or appear to not work at all. The same problem causes single-processor machines to appear to be hung, but the machines will respond to ping. Netstat will show at least one SYN_RCVD socket where the local and remote addresses and ports are the same. PHNE_13289: ( SR number: 1653227116 ; DTS number: INDaa28439 ) The TCP retransmission timer range is not tuneable. PHNE_13245: ( SR number: 4701350173 ; DTS number: INDaa26913 ) The system panics during start-up due to a lack of defensive checks in IP interrupt processing. ( SR number: 5003361691 ; DTS number: INDaa27808 ) Nettune cannot tune sb_max. ( SR number: 5003379529 ; DTS number: INDaa27952 ) A customer wants to have more available IP addresses than what RFC 1122 will allow. ( SR number: 5003384719 ; DTS number: INDaa28504 ) A customer is running out of outbound ports, since the system is bounded by the port numbers 1024 to 5000. ( SR number: 1653229633 ; DTS number: INDaa28537 ) When using Service Guard in a spanning tree environment it is possible to lose the unsoliticited ARP_REQUESTS sent out when an IP address moves from one interface to another. ( SR number: 4701345082 ; DTS number: INDaa26302 ) If connections in TIME_WAIT reuse the same port, the socket options will get lost. PHNE_12407: ( SR number: 5003314351 ; DTS number: INDaa24634 ) HP-UX does not allow different subnets for IP aliases. ( SR number: 1653163436 ; DTS number: INDaa25115 ) A TCP client that is connected to itself will hang the session. ( SR number: 1653204198 ; DTS number: INDaa26665 ) An additional urgent byte could be sent in an AF_INET/STREAM socket if the send buffer is much larger than 64K bytes. ( SR number: 1653214981 ; DTS number: INDaa27440 ) ip_output() is using the PMTU from the dynamic route, but TCP is not, resulting in fragmentation and sub-optimal behavior. ( SR number: 5003366898 ; DTS number: INDaa27749 ) Whenever the PMTU value is changed, the remote system starts logging TCP checksum errors and existing connections time out. ( SR number: 1653221549 ; DTS number: INDaa27809 ) A Catalyst 5000's system does not reply to an HP-UX ARP request. ( SR number: 4701362756 ; DTS number: INDaa28061 ) poll() is not supported on series 800 machines. ( SR number: 4701363333 ; DTS number: INDaa28081 ) nfsd's are hanging because they sleep until the driver or other lower layer has released the memory for the packet that was sent down. This memory is not being freed. PHNE_11530: ( SR number: 5003320655 ; DTS number: INDaa24498 ) The HP 9000/UX BSD ARP implementation causes caching of the least optimal path to a remote host on a Token Ring network among multiple possible paths through various source routing bridges. This is true for both outbound and inbound ARP resolution cases. In the case of outbound ARP resolution, after HP 9000/UX issues an ARP broadcast request to a remote host which results in multiple requests reaching to that host, it begins to receive multiple responses, and for each such response it overwrites the cache data for that host. This results in the cache having the longest path corresponding to the last response received. Similarly, in the case of inbound ARP resolution, HP 9000/UX receives multiple ARP requests over multiple paths, and with each request it updates its cache with the path over which that request was received. This results in the cache finally containing the path over which the last request was received which may be the longest path in most cases. ( SR number: 5003355875 ; DTS number: INDaa26445 ) In 10.X TCP MSS does not behave the same way as in 9.X even when PMTU is disabled. ( SR not found ; DTS number: INDaa27510 ) The system may hang due to a memory leak caused by failed setsockopt(2) calls. ( SR number: 5003372144 ; DTS number: INDaa27528 ) The system will panic due to a null pointer dereference during a bind(2) system call. PHNE_9106: ( SR not found ; DTS number: INDaa25576 ) HP-UX does not allow tuning of the TCP hash table size. ( SR number: 5003345207 ; DTS number: INDaa25720 ) An application that is bound to a multicast address does not receive packets sent to that multicast address. ( SR number: 1653192054 ; DTS number: INDaa25760 ) IBM RS/6000 systems reject our arp requests. ( SR number: 1653198069 ; DTS number: INDaa26155 ) The system hangs in sbdrop() during shutdown. ( SR number: 5003352872 ; DTS number: INDaa26215 ) An active TCP connection that receives a TCP packet from its peer with the urgent pointer pointing to a place in the stream that has not arrived yet will hang networking. ( SR not found ; DTS number: INDaa26243 ) HP-UX does not support IP directed broadcast forwarding. PHNE_9098: ( SR number: 5000710814 ; DTS number: INDaa20102 ) An ENXIO error is presently passed from the transport layer up to the application error as a "hard", or irrecoverable error. It is left up to the application to decide how to handle this situation. This is incorrect, because ENXIO is generated by the driver(s) in situations which *may* be recoverable, such as the imfamous 82596 LAN chip error. The user will see applications fail with a connection failure error which may be accompanied by a log message from the driver indicating that some sort of hardware error has occurred. ( SR number: 4701313866 ; DTS number: INDaa22779 ) Corrected an apparent typo where we malloc()'ed with one #define constant and free()'d with another #define constant that only differs by one letter from the first one. ( SR not found ; DTS number: INDaa24148 ) In a threaded environment, unp_externalize() can no longer depend on the file descriptor state being the same because another thread of the same process can change the state. ( SR number: 5003316810 ; DTS number: INDaa24262 ) A TCP client-server application can cause an ACK storm which will hang the system. ( SR number: 5003318543 ; DTS number: INDaa24355 ) A memory leak occurs when an IPPROTO_TCP setsockopt() is done on a closed socket. ( SR not found ; DTS number: INDaa24426 ) netstat improperly displays the interface field for clan0. ( SR not found ; DTS number: INDaa24561 ) HP-UX does not have protocol switch entries for Raptor. ( SR number: 1653175810 ; DTS number: INDaa24600 ) ICMP packets sent to 255.255.255.255 cause system hangs on UP machines and a panic on MP machines. ( SR not found ; DTS number: INDaa24633 ) For a SYN, when the socket is not found in the listen queue, we search the whole list. This takes too long. It causes performance degradation in netscape. The above may happen when a service is not started. ( SR number: 1653176644 ; DTS number: INDaa24653 ) A panic occurs when we call audit_send_dgram (). ( SR number: 5003327973 ; DTS number: INDaa24727 ) Data is put in the socket buffer before calling TCP to send it out. If TCP gets an error from the interface (which may be transient), TCP returns the error to the application. If the application attempts to resend the data instead of exiting, potential data corruption can occur. ( SR number: 5003326199 ; DTS number: INDaa24752 ) A K400 system running ServiceGuard on 10.01 panics when pinging a floating ip address of a package that is being shutdown. ( SR not found ; DTS number: INDaa24826 ) The code does not ensure that there is always space left for '\0' for the case when an interface's unit number > 9. ( SR not found ; DTS number: INDaa24843 The default for a listen() queue has been increased from 20 to 4K. ( SR not found ; DTS number: INDaa24847 ) The maximum value of 20 for a listen() queue is inadequate for many applications. ( SR not found ; DTS number: INDaa24859 ) HP-UX was taking an unnecessarily long time to close TCP. ( SR not found ; DTS number: INDaa24936 ) Using a Fibre Channel driver with Service Guard causes a memory leak resulting in a hang. ( SR number: 4701333427 ; DTS number: INDaa24947 ) tcp_ctloutput() may cause a panic due to inproper locking and unlocking of inp. ( SR number: 5000716316 ; DTS number: INDaa25002 ) The system will hang when a second connect() is called on the same socket. ( SR number: 1653182782 ; DTS number: INDaa25005 ) Fast retransmission is not activated after three duplicate ACKs if window scaling is on (RFC 1323). ( SR number: 4701335596 ; DTS number: INDaa25125 ) A syn attack can result in Denial Of Service (DOS) to legitimate users. ( SR number: 1653184861 ; DTS number: INDaa25164 ) Customers in 9.x can tune sb_max, but cannot do it in 10.x. ( SR not found ; DTS number: INDaa25166 ) Customers may find it difficult to combine routine precedence with normal delay if they only use our header files. ( SR number: 4701339044 ; DTS number: INDaa25467 ) A panic will occur in sounlock() when an application forks off multiple processes that call accept() on the same socket. ( SR number: 1653189852 ; DTS number: INDaa25498 ) A directed broadcast to a different network fails. ( SR number: 5003345215 ; DTS number: INDaa25698 ) Multicast addresses don't transfer over to the new interface during switchover. PHNE_9036: ( SR number: 5003342071 ; DTS number: INDaa25456 ) ping with illegal packets can cause panic. SR: 5000710814 4701313866 5003294777 5003316810 5003318543 5003320655 1653175810 5003314351 1653176644 5003327973 5003326199 4701333427 5000716316 1653182782 1653163436 4701335596 1653184861 5003342071 4701339044 1653189852 5003345215 5003345207 1653192054 1653198069 5003352872 4701345082 5003355875 1653204198 4701350173 1653214981 5003366906 5003372144 5003366898 5003361691 1653221549 5003379529 4701362756 4701363333 1653227116 5003384719 1653229633 1653232538 1653234245 4701371914 5003396937 1653239764 5003401802 5003408328 5003409268 5003411926 5003417410 5003417477 5003418228 5003423665 5003429464 Patch Files: /usr/conf/lib/libinet.a(udp_usrreq.o) /usr/conf/lib/libinet.a(tcp_usrreq.o) /usr/conf/lib/libinet.a(tcp_timer.o) /usr/conf/lib/libinet.a(tcp_subr.o) /usr/conf/lib/libinet.a(tcp_output.o) /usr/conf/lib/libinet.a(tcp_input.o) /usr/conf/lib/libhp-ux.a(nm_tune.o) /usr/conf/lib/libinet.a(ip_output.o) /usr/conf/lib/libinet.a(ip_mroute.o) /usr/conf/lib/libinet.a(ip_input.o) /usr/conf/lib/libinet.a(ip_icmp.o) /usr/conf/lib/libinet.a(in_proto.o) /usr/conf/lib/libinet.a(in_pcb.o) /usr/conf/lib/libinet.a(in.o) /usr/conf/lib/libinet.a(if_ether.o) /usr/conf/lib/libnet.a(route.o) /usr/conf/lib/libuipc.a(netisr.o) /usr/conf/lib/libnet.a(if_ni.o) /usr/conf/lib/libhp-ux.a(dgram_aud.o) /usr/conf/lib/libuipc.a(sys_socket.o) /usr/conf/lib/libuipc.a(uipc_init.o) /usr/conf/lib/libuipc.a(uipc_socket2.o) /usr/conf/lib/libuipc.a(uipc_usrreq.o) /usr/conf/lib/libhp-ux.a(uipc_mbuf.o) /usr/conf/lib/libuipc.a(uipc_socket.o) /usr/conf/lib/libuipc.a(uipc_syscall.o) /usr/conf/lib/libtpiso.a(xtiso.o) what(1) Output: /usr/conf/lib/libinet.a(udp_usrreq.o): PHNE_16237 udp_usrreq.c $Revision: 1.8.112.12 $ $Da te: 98/03/17 18:21:37 $ /usr/conf/lib/libinet.a(tcp_usrreq.o): PHNE_16237 tcp_usrreq.c $Revision: 1.10.112.11 $ $D ate: 98/01/12 18:24:30 $ /usr/conf/lib/libinet.a(tcp_timer.o): PHNE_16237 tcp_timer.c $Revision: 1.8.112.4 $ /usr/conf/lib/libinet.a(tcp_subr.o): PHNE_16237 tcp_subr.c $Revision: 1.8.112.10 $ $Date : 97/12/02 08:07:47 $ /usr/conf/lib/libinet.a(tcp_output.o): PHNE_16237 tcp_output.c $Revision: 1.6.112.5 $ $Dat e: 97/08/05 18:02:43 $ /usr/conf/lib/libinet.a(tcp_input.o): PHNE_16237 tcp_input.c $Revision: 1.11.112.20 $ $Da te: 97/12/08 10:38:26 $ /usr/conf/lib/libhp-ux.a(nm_tune.o): PHNE_16237 nm_tune.c $Revision: 1.3.112.9 $ /usr/conf/lib/libinet.a(ip_output.o): PHNE_16237 ip_output.c $Revision: 1.7.112.6 $ $Date : 96/11/05 15:13:12 $ /usr/conf/lib/libinet.a(ip_mroute.o): PHNE_16237 ip_mroute.c $Revision: 1.3.112.3 $ IPM3. 3 /usr/conf/lib/libinet.a(ip_input.o): PHNE_16237 ip_input.c $Revision: 1.8.112.11 $ $Date : 98/07/02 13:43:45 $ /usr/conf/lib/libinet.a(ip_icmp.o): PHNE_16237 ip_icmp.c $Revision: 1.9.112.5 $ /usr/conf/lib/libinet.a(in_proto.o): PHNE_16237 in_proto.c $Revision: 1.4.112.4 $ $Date: 96/08/19 18:40:49 $ /usr/conf/lib/libinet.a(in_pcb.o): PHNE_16237 in_pcb.c $Revision: 1.10.112.10 $ $Date: 98/03/17 18:31:06 $ /usr/conf/lib/libinet.a(in.o): PHNE_16237 in.c $Revision: 1.9.112.15 $ $Date: 98/0 6/09 00:25:44 $ /usr/conf/lib/libinet.a(if_ether.o): PHNE_16237 if_ether.c $Revision: 1.10.112.17 $ /usr/conf/lib/libnet.a(route.o): PHNE_16237 route.c $Revision: 1.8.112.8 $ /usr/conf/lib/libuipc.a(netisr.o): PHNE_16237 netisr.c $Revision: 1.12.112.8 $ /usr/conf/lib/libnet.a(if_ni.o): PHNE_16237 if_ni.c $Revision: 1.8.112.3 $ $Date: 98 /03/27 11:50:24 $ /usr/conf/lib/libhp-ux.a(dgram_aud.o): PHNE_16237 dgram_aud.c $Revision: 1.3.112.2 $ $Date : 96/08/02 20:37:56 $ /usr/conf/lib/libuipc.a(sys_socket.o): PHNE_16237 sys_socket.c $Revision: 1.7.112.4 $ /usr/conf/lib/libuipc.a(uipc_init.o): FILESET BSDIPC-SOCKET: lib uipc: Version: A.10.00 PHNE_16237 uipc_init.c $Date: 98/04/07 22:39:36 $ $ Revision: 1.7.112.2 $ /usr/conf/lib/libuipc.a(uipc_socket2.o): PHNE_16237 uipc_socket2.c $Revision: 1.10.112.9 $ $ Date: 98/03/27 13:03:49 $ /usr/conf/lib/libuipc.a(uipc_usrreq.o): PHNE_16237 uipc_usrreq.c $Revision: 1.8.112.7 $ /usr/conf/lib/libhp-ux.a(uipc_mbuf.o): PHNE_16237 uipc_mbuf.c $Revision: 1.9.112.5 $ $Date : 98/03/27 12:57:17 $ /usr/conf/lib/libuipc.a(uipc_socket.o): PHNE_16237 uipc_socket.c $Revision: 1.11.112.14 $ $ Date: 98/08/14 15:29:01 $ /usr/conf/lib/libuipc.a(uipc_syscall.o): PHNE_16237 uipc_syscall.c $Revision: 1.10.112.4 $ $ Date: 96/12/16 10:45:36 $ /usr/conf/lib/libtpiso.a(xtiso.o): PHNE_16237 xtiso.c $Revision: 1.4.112.6 $ $Date: 97 /01/28 17:34:36 $ cksum(1) Output: 2138987657 15232 /usr/conf/lib/libinet.a(udp_usrreq.o) 3003206383 11776 /usr/conf/lib/libinet.a(tcp_usrreq.o) 2110154894 13348 /usr/conf/lib/libinet.a(tcp_timer.o) 1720280963 10952 /usr/conf/lib/libinet.a(tcp_subr.o) 515813550 7512 /usr/conf/lib/libinet.a(tcp_output.o) 913223563 21348 /usr/conf/lib/libinet.a(tcp_input.o) 2876966583 10028 /usr/conf/lib/libhp-ux.a(nm_tune.o) 3592332166 12424 /usr/conf/lib/libinet.a(ip_output.o) 480216849 21020 /usr/conf/lib/libinet.a(ip_mroute.o) 2025152258 17628 /usr/conf/lib/libinet.a(ip_input.o) 926259532 7344 /usr/conf/lib/libinet.a(ip_icmp.o) 2856299122 3192 /usr/conf/lib/libinet.a(in_proto.o) 1901736979 17464 /usr/conf/lib/libinet.a(in_pcb.o) 3695141077 17516 /usr/conf/lib/libinet.a(in.o) 983830837 48004 /usr/conf/lib/libinet.a(if_ether.o) 3939904047 17900 /usr/conf/lib/libnet.a(route.o) 173616598 8892 /usr/conf/lib/libuipc.a(netisr.o) 4059536260 10504 /usr/conf/lib/libnet.a(if_ni.o) 1449824894 2504 /usr/conf/lib/libhp-ux.a(dgram_aud.o) 926059390 4196 /usr/conf/lib/libuipc.a(sys_socket.o) 835908320 4404 /usr/conf/lib/libuipc.a(uipc_init.o) 1340479567 21716 /usr/conf/lib/libuipc.a(uipc_socket2.o) 3823727755 13436 /usr/conf/lib/libuipc.a(uipc_usrreq.o) 954414749 12692 /usr/conf/lib/libhp-ux.a(uipc_mbuf.o) 803044412 21240 /usr/conf/lib/libuipc.a(uipc_socket.o) 3662434531 17108 /usr/conf/lib/libuipc.a(uipc_syscall.o) 2341407169 60068 /usr/conf/lib/libtpiso.a(xtiso.o) Patch Conflicts: None Patch Dependencies: None Hardware Dependencies: None Other Dependencies: None Supersedes: PHNE_9036 PHNE_9098 PHNE_9106 PHNE_11530 PHNE_12407 PHNE_13245 PHNE_13289 PHNE_13469 PHNE_14504 PHNE_14916 PHNE_15581 Equivalent Patches: None Patch Package Size: 510 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 PHNE_16237 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHNE_16237.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/PHNE_16237.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/PHNE_16237. 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 PHNE_16237.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/PHNE_16237.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: None