Patch Name: PHKL_11543 Patch Description: s700 10.10 HSC/GSC+/WSIO SCSI cumulative patch Creation Date: 97/07/03 Post Date: 97/07/11 Hardware Platforms - OS Releases: s700: 10.10 Products: N/A Filesets: OS-Core.CORE-KRN ProgSupport.C-INC Automatic Reboot?: Yes Status: General Superseded Critical: Yes PHKL_11543: PANIC PHKL_8359: HANG PHKL_7090: PANIC HANG PHKL_7378: PANIC PHKL_6643: PANIC Panic occurs only when using an unsupported device Path Name: /hp-ux_patches/s700/10.X/PHKL_11543 Symptoms: PHKL_11543: - Fixes an intermittent panic when opening a tape device on the HSC bus - Improves performance for wide SCSI tape devices connected via the HSC bus - Allows DLT4000 devices to perform odd-sized writes PHKL_10419: When reading a tape on a 7980S tape drive, reading a partial record fails and returns I/O Error. If a tape device receives a bus reset the device will rewind. Following this, when the device is closed, the driver will write EOF marks at the beginning of the tape causing the remaining data to be unusable. When a tape device is opened for write access and the media is write protected the driver returns I/O Error, which can be ambiguous. EPERM (Permission denied) is a more descriptive error. PHKL_8906: "SCSI: Unhandled interrupt" and resulting bus reset can cause panic during boot of 710, 715/50, 720 and 725/50 workstations if root disk is LVM and on built-in SCSI bus. It's theoretically possible for the bus reset to cause data corruption on QUANTUM LPS525S disks on the bus. Some M/O drives will not work on the above systems plus 705, 715/33, 730, 735 and 755. PHKL_8753: Fixes a bug with Exabyte tape drives that caused append writes (those not at BOT) to be in non-compressed mode when using the BEST density setting. PHKL_8504: This patch changes the behavior of the open() call with a write protected tape. The open() will now fail with EIO if the mode is not O_RDONLY. PHKL_8359: Select timeouts are retried forever, i.e. I/O's never complete when a device is removed. SCSI bus hang and reset. PHKL_7882: Without immediate reporting enabled a DLT tape drive will take several seconds for each filemark written. If a user application is writing many filemarks to a tape the performance will be poor. This patch enables immediate reporting of filemarks, which should improve performance for an application that writes many filemarks to a tape. PHKL_7637: Too long request timeout, 2 min. 30 sec. on EISA SCSI. Missing SIOC_ABORT and SIOC_RESET_DEV functionality. Mediainit failure. PHKL_7378: Fixes a problem with a panic caused by use of non-supported Exabyte tape drives. Adds support for Quantum DLT-2000, DLT-4000, and DLT-6000 tape drives. PHKL_7090: panic: (display==0xb800, flags==0x0) Data page fault panic: (display==0xbf00, flags==0x0) Non-access data TLB miss panic: callout table overflow System hang with empty CD-ROM drive in /etc/fstab. Mediainit fails after two hours. Autochanger devices don't show up in ioscan output. SCSI_DISK2 doesn't work with unmounted QUANTUM PD* disks. (note: it isn't expected to work with mounted ones) TEAC floppy driver doesn't identify 5.25" 360K format. Ioscan shows incorrect s/w, h/w status for sctl driver. Bus hang resets or worse with QUANTUM PD* disks. Bus hang resets with Quantum VP3215 disks. Driver hang for single device on MP systems. PHKL_6643: The system will panic if an access is made to an Exabyte tape drive other than those models that are officially supported. Defect Description: PHKL_11543: - The tape driver will occasionally panic on the open of a tape device which is attached to the HSC bus. The panic is caused when a tape device responds with a "check condition" very early in the open process. The problem is intermittent and can not be reliably reproduced. - Patches PHKL_10417 through PHKL_10422 changed the way the driver negotiated with the device for narrow (8 bit) or wide (16 bit) transfers. This fixed a problem with 7980S tape drives, but caused the driver to never correctly negotiate for wide transfers. Any wide device on a wide interface would suffer a performance degradation because the driver was throttling it down to 8 bit transfers instead of 16 bit transfers. - Because of problems with transfering an odd number of bytes over a wide bus, the driver prevents doing an odd sized write to a wide device. The DLT4000 is a narrow device, but it is differential so it attaches to a wide bus. The driver was looking at the bus size, rather than the device type, to determine the transfer size and so it was blocking odd-sized transfers to DLT4000 devices even though these should be allowed. Writing an odd-sized record to a DLT4000 would return an EIO error. PHKL_10419: 7980S problem was caused by a change in the SCSI interface driver which caused the interface to negotiate for synchronous even when the driver had not enabled that negotiation. The 7980S drive is not SCSI-2 compliant, and has problems with synchronous negotiation in some places. Other changes were enhancements - no defect. PHKL_8906: The c720 driver does not lisc->sclk soon enough. Chip timing parameters are set up incorrectly. PHKL_8753: The Exabyte bug can be reproduced by writing a large (100 Mb) file to an Exabyte drive using the 'BEST' device file in 'no rewind' mode, then writing the same file again to the same device. The first write will be substantially faster because it is compressed while following writes are not compressed. PHKL_8504: Before this patch the open() call did not look at media write protection. A write() to a write protected tape would fail, but an open() with FWRITE mode would succeed. This change was made to make the GSC driver behave the same as the NIO driver. PHKL_8359: Select timeouts are retried forever. B_NDELAY should eliminate retries on select timeout. Zalon chip bug results in SCSI bus hang. PHKL_7882: A flag in the driver indicates, for each device type, whether or not immediate reporting should be enabled for filemarks. That flag was not being set for DLT drives. To reproduce, write a short C program that writes 20 blocks of 1K bytes, each separated by a filemark. Performance will be substantially better with this patch applied. PHKL_7637: NCR 53C710 and 53C700 chip bug. Missing SIOC_ABORT and SIOC_RESET_DEV functionality. Integer overflow in request timeout calculation. PHKL_7378: System would panic with any access to a non-supported Exabyte tape drive. PHKL_7090: De422730, DSDe427313: Greely M/O's missing from non-wide multilun list. DSDe428060, DSDe428124: Dereference NULL pointer returned by scsi_mode_sense. DSDe427385: Dereference bogus DSP in c720_isrMA. DSDe427660: Dereference bogus pointer in isrDumpState script dump. DSDe427441, DSDe428177: Abort NOT averted by deferred command complete. DSDe427619: LSP_ABORT pushback in isrCA deactivates. DSDe428250: Request timeout integer overflow. Related: Bump sd_format_msecs to 24 hours. DSDe426840: km_io_alloc is too soon in open path. DSDe426722: close synchronization bug DSDe426499: QUANTUM/SCSI_DISK2 pass-thru veto even if open_cnt == 1. DSDe426662: Callout table overflow with scsi_retry entries. DSDe427253: Missing return after isrEscape in isrUntaggedReselect. DSDe425386: TEAC floppy driver does not correctly identify 5.25" 360K format. floppy: Add MODE SELECT in sf_set_geometry to work around firmware bug. DSDe428562: ioscan doesn't show correct s/w, h/w status for pass-thru driver. DSDe427008: Assertion failure due to c700_isr during if_reset_bus/c700_queuedone/scsi_cbfn. NODTSstall: Wasn't checking REQ in c700 for stalled phase mismatch. NODTSresid: Bogus scb->data_resid. PHKL_6643: If a drive was found that had a manufacturer of Exabyte but was not one of the supported drives the product name got set to NULL. Dereferencing this NULL pointer later on caused a system panic. SR: 1653148098 1653149054 1653215020 4701320580 4701320606 4701329417 4701337394 4701342089 5000698738 5003329078 5003330746 5003345496 5003359489 Patch Files: /usr/conf/h/mtio.h /usr/conf/lib/libhp-ux.a(scsi_c700.o) /usr/conf/lib/libhp-ux.a(scsi_c720.o) /usr/conf/lib/libhp-ux.a(scsi_ctl.o) /usr/conf/lib/libhp-ux.a(scsi_disk.o) /usr/conf/lib/libhp-ux.a(scsi_floppy.o) /usr/conf/lib/libhp-ux.a(scsi_tape.o) /usr/conf/lib/libhp-ux.a(ufs_dsort.o) /usr/conf/lib/libhp-ux.a(wsio_scsi.o) /usr/include/sys/mtio.h what(1) Output: /usr/conf/h/mtio.h: mtio.h $Date: 97/01/20 10:07:51 $ $Revision: 1.23.89 .13 $ PATCH_10.10 (PHKL_8753) /usr/conf/lib/libhp-ux.a(scsi_c700.o): scsi_c700.c $Date: 96/07/26 13:08:57 $ $Revision: 1.3.89.9 $ PATCH_10.10 (PHKL_7637) /usr/conf/lib/libhp-ux.a(scsi_c720.o): scsi_c720.c $Date: 97/07/03 09:57:00 $ $Revision: 1.2.89.20 $ PATCH_10.10 (PHKL_11543) /usr/conf/lib/libhp-ux.a(scsi_ctl.o): scsi_ctl.c $Date: 97/07/03 09:56:45 $ $Revision: 1.3.89.18 $ PATCH_10.10 (PHKL_11543) /usr/conf/lib/libhp-ux.a(scsi_disk.o): scsi_disk.c $Date: 96/11/25 13:22:12 $ $Revision: 1.3.89.14 $ PATCH_10.10 (PHKL_8906) /usr/conf/lib/libhp-ux.a(scsi_floppy.o): scsi_floppy.c $Date: 96/04/04 11:46:49 $ $Revision: 1.3.89.6 $ PATCH_10.10 (PHKL_7090) /usr/conf/lib/libhp-ux.a(scsi_tape.o): scsi_tape.c $Date: 97/06/30 10:25:49 $ $Revision: 1. 3.89.21 $ PATCH_10.10 (PHKL_11543) /usr/conf/lib/libhp-ux.a(ufs_dsort.o): ufs_dsort.c $Date: 96/11/25 13:08:14 $ $Revision: 1.16.89.6 $ PATCH_10.10 (PHKL_8906) /usr/conf/lib/libhp-ux.a(wsio_scsi.o): wsio_scsi.c $Date: 96/11/25 13:29:41 $ $Revision: 1.3.89.4 $ PATCH_10.10 (PHKL_8906) /usr/include/sys/mtio.h: mtio.h $Date: 97/01/20 10:07:51 $ $Revision: 1.23.89 .13 $ PATCH_10.10 (PHKL_8753) cksum(1) Output: 1968850153 25660 /usr/conf/h/mtio.h 43376672 106560 /usr/conf/lib/libhp-ux.a(scsi_c700.o) 3643034372 78156 /usr/conf/lib/libhp-ux.a(scsi_c720.o) 2564550065 69620 /usr/conf/lib/libhp-ux.a(scsi_ctl.o) 3393391491 16992 /usr/conf/lib/libhp-ux.a(scsi_disk.o) 1060465429 22308 /usr/conf/lib/libhp-ux.a(scsi_floppy.o) 2727899563 68216 /usr/conf/lib/libhp-ux.a(scsi_tape.o) 3356741824 8240 /usr/conf/lib/libhp-ux.a(ufs_dsort.o) 4081411541 154884 /usr/conf/lib/libhp-ux.a(wsio_scsi.o) 1968850153 25660 /usr/include/sys/mtio.h Patch Conflicts: None Patch Dependencies: None Hardware Dependencies: None Other Dependencies: None Supersedes: PHKL_6643 PHKL_7090 PHKL_7378 PHKL_7637 PHKL_7882 PHKL_8359 PHKL_8504 PHKL_8753 PHKL_8906 PHKL_10419 Equivalent Patches: PHKL_11544: s800: 10.10 Patch Package Size: 610 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_11543 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHKL_11543.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_11543.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_11543. 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_11543.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_11543.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: Due to the number of objects in this patch, the customization phase of the update may take more than 10 minutes. During that time the system will not appear to make forward progress, but it will actually be installing the objects.