Kernel 2.4 based: June 2003 stream

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linux-2.4.21-s390-07-june2003.tar.gz / MD5 ... accumulated patch, recommended (2003-11-28)

linux-2.4.21-s390-07-june2003-patches.tar.gz / MD5 ... per-problem-patches, recommended (2003-11-28)

These patches contain the following linux kernel bug fixes:

Description:

PCICCs fail to be detected under z90crypt

Symptom:

PCICCs fail to be detected under z90crypt

Problem:

failed to probe unknown devices

Solution:

probe unknown devices

Problem-ID:

5326

Description:

z90crypt doesn't support dynamic device node generation.

Symptom:

z90crypt doesn't support dynamic device node generation.

Problem:

z90crypt uses a dynamically assigned major number but the device node for z90crypt can not be created or removed dynamically.

Solution:

Add hotplug support to z90crypt.

Problem-ID:

5435

Description:

Unable to reconnect when using z/VM 3.1 at remote peer.

Symptom:

When peer interface was recycled, iucv is unable to reconnect.

Problem:

Incoming message interrupt during setup leads to illegal driver state.

Solution:

Disable all interrupts during setup

Problem-ID:

3061

Description:

fake_ll problems when IPv6 is not active in qeth

Symptom:

even with fake_ll, tcpdump displays almost unreadable output

Problem:

fake_ll handling in the v6-less case

Solution:

improved fake_ll handling

Problem-ID:

5370

Description:

multicast_router handling for IPv6 on OSA

Symptom:

/proc/qeth contains "mix" when interface is set up as multicast_router

Problem:

supported commands not considered

Solution:

check, if multicast_router is supported for IPv6

Problem-ID:

5289

Description:

sclp: signal shutdown does not work

Symptom:

Invoking a 'signal shutdown' command on VM will sometimes not log off a VM guest, even though Linux is shut down correctly.

Problem:

Linux has to signal VM that it finished the shutdown procedure by loading one CPU with a special 'quiesce' PSW after all other CPUs have been stopped. In the current implementation, the correct sequence of this procedure is not guaranteed.

Solution:

Implement a signal sense loop on CPU 0 to guarantee that all other CPUs have entered the stopped state prior to loading the quiesce PSW.

Problem-ID:

5297

Description:

zfcp: unwary memory allocation during error recovery

Symptom:

deadlock, or some other fatality along this line

Problem:

kmalloc with GFP_KERNEL while some lock is held

Solution:

use GFP_ATOMIC instead (we have an emergency buffer for an out of memory condition)

Problem-ID:

5292

Everybody should apply this patch.

To create the complete linux kernel sources, the following patches need to be applied in sequence:

linux-2.4.21.tar.gz (see www.kernel.org)
+ linux-2.4.21-s390-june2003.diff (IBM)
+ linux-2.4.21-s390-01-june2003.diff (IBM)
+ linux-2.4.21-s390-02-june2003.diff (IBM)
+ linux-2.4.21-s390-03-june2003.diff (IBM)
+ linux-2.4.21-s390-04-june2003.diff (IBM)
+ linux-2.4.21-s390-05-june2003.diff (IBM)
+ linux-2.4.21-s390-06-june2003.diff (IBM)
+ linux-2.4.21-s390-07-june2003.diff (IBM)

Note: If On-demand timer is required, apply as last patch:
+ linux-2.4.21-s390-timer-01-june2003.diff (IBM)

Note: To use OSA-Express Direct SNMP, also install s390-tools 1.2.2 or later.

Note: Using broadcast in VM Guest LAN requires APAR VM63397.

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