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Patch Name: PHKL_20245
Patch Description: s700_800 11.00 __lw_get_thread_times & msem_lock() failures
Creation Date: 99/10/27
Post Date: 99/11/01
Hardware Platforms - OS Releases:
s700: 11.00
s800: 11.00
Products: N/A
Filesets:
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP
Automatic Reboot?: Yes
Status: General Superseded
Critical: No
Category Tags:
defect_repair general_release
Path Name: /hp-ux_patches/s700_800/11.X/PHKL_20245
Symptoms:
PHKL_20245:
( SR: 8606102049 CR: JAGab67439 )
Desc: msem_lock() call occasionally fails w/EINVAL
One customer finds that msem_lock() occasionally fails and
errno is set to EFAULT. If the exactly same msem_lock()
call is executed again, it works.
PHKL_20236:
( SR: 4701409169 DTS: JAGaa12229 )
__lw_get_thread_times reports incorrect times on V-Class
systems. Most of the time it reports correctly but on
occasion it will return an erroneous system time value.
Defect Description:
PHKL_20245:
( SR: 8606102049 CR: JAGab67439 )
Desc: msem_lock() call occasionally fails w/EINVAL
In one customer instance, the protections in the TLB entry
lose 'write' access and so a msem_lock() call to _mcas()
will occasionally fail. This results in errno 14 EINVAL
rather than a re-try. However, an immediate second call
to msem_lock() does not fail.
Resolution:
Two lines of code, added to the lw_mcas_pageok() function,
pre-read the page. A pre-read page fault will trap and
cause a re-try instead of returning a fault.
PHKL_20236:
( SR: 4701409169 DTS: JAGaa12229 )
__lw_get_thread_times sometimes resets the W-bit when
returning to user-space. This causes incorrect calculation
of system time. This does not happen frequently, but if
__lw_get_thread_times() is called repeatedly, sometimes it
will return an incorrect system time.
Resolution:
The __lw_get_thread_times() routine was corrected to not
reset the wide-mode bit in the PSW when returning to the
user.
SR:
4701409169 8606102049
Patch Files:
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
/usr/conf/lib/libhp-ux.a(lw_scall.o)
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
/usr/conf/lib/libhp-ux.a(lw_scall.o)
what(1) Output:
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
/usr/conf/lib/libhp-ux.a(lw_scall.o):
lw_scall.s $Date: 1999/10/22 13:48:19 $Revision: r11
ros/10 PATCH_11.00 (PHKL_20245)
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
/usr/conf/lib/libhp-ux.a(lw_scall.o):
lw_scall.s $Date: 1999/10/22 13:48:19 $Revision: r11
ros/10 PATCH_11.00 (PHKL_20245)
cksum(1) Output:
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
3577177433 9564 /usr/conf/lib/libhp-ux.a(lw_scall.o)
OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
796457382 14560 /usr/conf/lib/libhp-ux.a(lw_scall.o)
Patch Conflicts: None
Patch Dependencies:
s700: 11.00: PHKL_18543
s800: 11.00: PHKL_18543
Hardware Dependencies: None
Other Dependencies: None
Supersedes:
PHKL_20236
Equivalent Patches: None
Patch Package Size: 60 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_20245
5. Run swinstall to install the patch:
swinstall -x autoreboot=true -x patch_match_target=true \
-s /tmp/PHKL_20245.depot
By default swinstall will archive the original software in
/var/adm/sw/save/PHKL_20245. If you do not wish to retain a
copy of the original software, use the patch_save_files option:
swinstall -x autoreboot=true -x patch_match_target=true \
-x patch_save_files=false -s /tmp/PHKL_20245.depot
WARNING: If patch_save_files is false when a patch is installed,
the patch cannot be deinstalled. Please be careful
when using this feature.
For future reference, the contents of the PHKL_20245.text file is
available in the product readme:
swlist -l product -a readme -d @ /tmp/PHKL_20245.depot
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHKL_20245.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions:
This patch depends on base patch PHKL_18543.
For successful installation please insure that PHKL_18543
is already installed, or that PHKL_18543 is included
in the same depot with this patch and PHKL_18543
is selected for installation.
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