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Patch Name: PHKL_30542
Patch Description: s700_800 11.11 eventport (/dev/poll) pseudo driver
Creation Date: 04/03/11
Post Date: 04/03/29
Hardware Platforms - OS Releases:
s700: 11.11
s800: 11.11
Products: N/A
Filesets:
OS-Core.ADMN-ENG-A-MAN,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP
OS-Core.UX-CORE,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP
ProgSupport.C-INC,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP
Automatic Reboot?: Yes
Status: General Release
Critical:
Yes
PHKL_30542: PANIC
Category Tags:
defect_repair enhancement general_release critical panic
Path Name: /hp-ux_patches/s700_800/11.X/PHKL_30542
Symptoms:
PHKL_30542:
( SR:8606342243 CR:JAGaf03150 )
Panic occurs during an ioctl(2) or close on an event port
device. The stack traces can look like:
soo_select+0x8
unp_poll_handler+0x30
so_poll_switch+0x1c
evp_dp_poll+0x1d8
evp_ioctl+0xcc
spec_ioctl+0xac
vno_ioctl+0x98
ioctl+0x118
or
so_eventreg+0x78
evp_dereg_objhdr+0x64
evp_close+0x188
call_open_close+0x28c
closed+0xe4
spec_close+0x64
vn_close+0x48
vno_close+0x20
closef+0x64
PHKL_25468:
( SR:8606222220 CR:JAGad91335 )
Enhancement: /dev/poll provides an interface to the
eventport driver allowing a user to synchronously monitor a
specific set of conditions associated with a registered set
of file descriptors.
Defect Description:
PHKL_30542:
( SR:8606342243 CR:JAGaf03150 )
1) A flag in the file descriptor was used to indicate if the
file descriptor is registered with an event port. This
implementation cannot fully support registering a file
descriptor with multiple event ports.
2) A race condition exists between registration and
deregistration of a file descriptor with the same event
port. This can result in the file descriptor not properly
flagged to indicate its registration with the event port.
Resolution:
1) The flag in the file descriptor structure is replaced by
a counter to keep track of how many event ports the file
descriptor is registered.
2) The new counter is always incremented (decremented)
accordingly upon successful registration (deregistration).
PHKL_25468:
( SR:8606222220 CR:JAGad91335 )
Poll(2) and select(2) do not scale well with a large number
of file descriptors.
Resolution:
Use the /dev/poll semantics instead of poll(2) or select(2).
Enhancement:
No (superseded patches contained enhancements)
PHKL_30542:
Enhancements were delivered in a patch this one has
superseded. Please review the Defect Description
text for more information.
SR:
8606222220 8606342243
Patch Files:
OS-Core.ADMN-ENG-A-MAN,fr=B.11.11,fa=HP-UX_B.11.11_32/64,
v=HP:
/usr/share/man/man7.Z/poll.7
OS-Core.UX-CORE,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
/sbin/init.d/evp.init
/sbin/rc1.d/S450evp.init
ProgSupport.C-INC,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
/usr/include/devpoll.h
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
/usr/conf/lib/libevp.a(evp.o)
/usr/conf/lib/libevp.a(evp_util.o)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
/usr/conf/master.d/evp
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
/usr/conf/lib/libevp.a(evp.o)
/usr/conf/lib/libevp.a(evp_util.o)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
/usr/conf/master.d/evp
what(1) Output:
OS-Core.ADMN-ENG-A-MAN,fr=B.11.11,fa=HP-UX_B.11.11_32/64,
v=HP:
/usr/share/man/man7.Z/poll.7:
None
OS-Core.UX-CORE,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
/sbin/init.d/evp.init:
evp $Date: 2001/10/12 09:13:18 $Revision: r11.11/2 P
ATCH_11.11 (PHKL_25468)
/sbin/rc1.d/S450evp.init:
evp $Date: 2001/10/12 09:13:18 $Revision: r11.11/2 P
ATCH_11.11 (PHKL_25468)
ProgSupport.C-INC,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
/usr/include/devpoll.h:
devpoll.h $Date: 2001/10/16 12:07:25 $Revision: r11.
11/1 PATCH_11.11 (PHKL_25468)
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
/usr/conf/lib/libevp.a(evp.o):
evp.c $Date: 2004/03/02 22:37:00 $Revision: r11.11/2
PATCH_11.11 (PHKL_30542)
/usr/conf/lib/libevp.a(evp_util.o):
evp_util.c $Date: 2001/10/10 09:38:09 $Revision: r11
.11/1 PATCH_11.11 (PHKL_25468)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
/usr/conf/master.d/evp:
evp $Date: 2001/10/10 11:20:23 $Revision: r11.11/1 P
ATCH_11.11 (PHKL_25468)
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
/usr/conf/lib/libevp.a(evp.o):
evp.c $Date: 2004/03/02 22:37:00 $Revision: r11.11/2
PATCH_11.11 (PHKL_30542)
/usr/conf/lib/libevp.a(evp_util.o):
evp_util.c $Date: 2001/10/10 09:38:09 $Revision: r11
.11/1 PATCH_11.11 (PHKL_25468)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
/usr/conf/master.d/evp:
evp $Date: 2001/10/10 11:20:23 $Revision: r11.11/1 P
ATCH_11.11 (PHKL_25468)
cksum(1) Output:
OS-Core.ADMN-ENG-A-MAN,fr=B.11.11,fa=HP-UX_B.11.11_32/64,
v=HP:
3827089825 6731 /usr/share/man/man7.Z/poll.7
OS-Core.UX-CORE,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
1163720807 641 /sbin/init.d/evp.init
1163720807 641 /sbin/rc1.d/S450evp.init
ProgSupport.C-INC,fr=B.11.11,fa=HP-UX_B.11.11_32/64,v=HP:
1710328393 1983 /usr/include/devpoll.h
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
1867606715 16988 /usr/conf/lib/libevp.a(evp.o)
788238718 10588 /usr/conf/lib/libevp.a(evp_util.o)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
3011293244 4003 /usr/conf/master.d/evp
OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
2684834997 37496 /usr/conf/lib/libevp.a(evp.o)
1627044037 26984 /usr/conf/lib/libevp.a(evp_util.o)
OS-Core.KERN2-RUN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
3011293244 4003 /usr/conf/master.d/evp
Patch Conflicts: None
Patch Dependencies:
s700: 11.11: PHKL_25582 PHKL_30541 PHNE_25084 PHNE_25642
s800: 11.11: PHKL_25582 PHKL_30541 PHNE_25084 PHNE_25642
Hardware Dependencies: None
Other Dependencies: None
Supersedes:
PHKL_25468
Equivalent Patches: None
Patch Package Size: 100 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_30542
5. Run swinstall to install the patch:
swinstall -x autoreboot=true -x patch_match_target=true \
-s /tmp/PHKL_30542.depot
By default swinstall will archive the original software in
/var/adm/sw/save/PHKL_30542. If you do not wish to retain a
copy of the original software, include the patch_save_files
option in the swinstall command above:
-x patch_save_files=false
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_30542.text file is
available in the product readme:
swlist -l product -a readme -d @ /tmp/PHKL_30542.depot
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHKL_30542.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions: None
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