Recommended update for Linux kernel (k_timer)

Knowledgebase

(Last modified: 17JUL2003)

solutions Recommended update for Linux kernel (k_timer) SuSE Linux Maintenance Web (14fb0fc8c8559e60ec36d775ad27d186)

Applies to

Product(s): SuSE Linux Enterprise Server 7 for S/390 and zSeries

Package: k_timer
Release: 20030717
Obsoletes: 0ec28107f3b1409d4a8920dcc83d309e

Indications

This update should be installed on all systems.
This article applies to systems with the k_timer kernel package installed, please use the appropriate kernel package if you are using a different kernel:

"Recommended update for Linux kernel (k_deflt)" (http://sdb.suse.de/en/psdb/html/6eb50d0ab2684fe065103debf4648be0.html)

You can find out which kernel package you are using with
rpm -qf /boot/kernel/image

Contraindications

Using z/VM 4.3 and PTF UM30652 not installed.

Description

Fixes
This update fixes varies problems and has the following enhancements:

DASD driver statistics backport from 2.4.17.
DASD devices will not be set 'online' on slow/fast systems.
DASD driver: IFCC handling fixed.
DASD driver: discipline load order problem (with DIAG.)
CIO: Handling of not operational paths.
CIO: oopses from debug feature.
Kernel: s390dbf - invalid call of create_proc_entry().
Address space switching instruction in user space does not fault.
DASD: Problems when echoing invalid DEVNO to /proc/dasd/devices.
/proc/cio_ignore parsing.
CTC: System hang on shutdown of remote OS/390.
Clearing of .bss section.
Fixed-point divide exception in boot process.
Chandev configuration.
Many IUCV devices.
Module loader.
vmalloc() with user specified length.
Memory management: dirty bit clearing.
Starting a LCS network device with specific module parameters causes an address exception.
XPRAM parameter parsing.
OCO modules: high percentage of dropped packets using UDP.
OCO modules: qeth sent wrong command when doing ioctl().
OCO modules: Improper multicast IP housekeeping.
Elevator Algorithm was deactivated for DASD. Depending on the load profile this can improve I/O-performance up to 10%.
Addtional debug info for DASD and QDIO. This affects only the analysis of a dump and does not impact performance.
Fixed RAID 1 problem which could lead to oopses.
Fix kernel panic with deleting rpc timers on heavy SMP
adapted nethash-fix from 2.4.19

IBM code drops
This update includes the following IBM code drops:

2003-03-17 kernel 2.4.7 for the "August 2001 stream"
2003-04-16 kernel 2.4.7 for the "August 2001 stream"
2003-07-07 kernel 2.4.7 for the "August 2001 stream"

Installation notes

You can find out which kernel package you are using with
This update is provided as an RPM package that can easily be installed onto a running system either by YaST Online Update (YOU) or by following these directions:
rpm -Fvh k_timer.rpm zipl
Please do not forget to run zipl after installing the kernel RPM for
the system to remain bootable.
Finally, reboot the system with
shutdown -r now
to load the new kernel (replace "now" with the appropriate amount of time to allow local users to cleanly log out, for example "+5" for five minutes.)

links to download packages

SUSE Linux Enterprise Server 7 for S/390 and zSeries (s390)

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

The Origin of this information may be internal or external to Novell. Novell makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Novell makes no explicit or implied claims to the validity of this information.

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