Kernel patches

2005-04-28 kernel 2.4.21 bug fix patch 25 ("June 2003")

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linux-2.4.21-s390-25-june2003.tar.gz / MD5 ... accumulated patch, recommended (2005-04-28)

linux-2.4.21-s390-25-june2003-patches.tar.gz / MD5 ... per-problem-patches, recommended (2005-04-28)

These patches contain the following linux kernel bug fixes:

Description:
lcs: System hang, when registering of multicast addresses fails.
Symptom:
Endless loop, when setting lcs device online and then registering of multicast addresses fails.
Problem:
Used list_for_each_entry() instead of list_for_each_safe() in a case where elements are removed from the list.
This is not allowed with list_for_each_entry.
Solution:
Replace list_for_each_entry() with list_for_each_safe().
Problem-ID:
14818
Description:
qeth: Layer2: VLAN unicast packets malformed.
Symptom:
Using qeth ethernet device in Layer 2 mode VLAN unicast packets will not arrive at vlan network device.
Problem:
The protocol is not set properly and VLAN tag is not correct either.
Solution:
First strip out the ethernet header and then set skb's protocol = encapsulated protocol.
Problem-ID:
15190
Description:
qeth: do not allow layer 2 mode in case of Hipersockets devices.
Symptom:
Hipersockets device initialization fails when layer 2 option is set.
Problem:
Using layer2 chandev option in conjunction with Hipersockets devices is not allowed but qeth tries to initialize Hipersockets devices in layer 2 mode as well.
Solution:
Turn off layer2 option in case of Hipersockets and go on with initializating Hipersockets in non-layer2 mode.
Problem-ID:
15194
Description:
s390dbf: Use more specific permissions for procfiles.
Symptom:
All s390dbf procfiles have same permissions.
Problem:
Permissions should be more specific. E.g read only views should have read permission, write only views should have write permission.
Solution:
Set correct permissions.
Problem-ID:
14372
Description:
scsi: LVM is unable to re-enable a path after a cable pull.
Symptom:
If FC cable is pulled for 10 minutes LVM is unable to re-enable the paths for all LUNs.
Problem:
After a timeout SCSI device is set offline which makes its recovery impossible.
Solution:
Introduce a new flag in SCSI host structure which, when set on, lets SCSI devices on this host never being set offline.
Problem-ID:
12614
Description:
z90crypt: Writing to /proc/driver/z90crypt can cause a kernel Oops.
Symptom:
Kernel Oops.
Problem:
Incorrect bounds checking on procfs write routine.
Solution:
Replace my string scanner with strstr and better error checking.
Problem-ID:
15058
Description:
zfcp: Increase retrying of exchange config data requests up to 2 minutes.
Symptom:
If exchange config data FSF request has being sent to FCP adapter while it is initializing a connection, exchange config data could not proceed even after retries.
Problem:
In case FSF request comes back with protocol status HOST_CONNECTION_INITIALIZING zfcp module makes 6 retries sleeping for 0.5 second between each retry.
Solution:
In case of HOST_CONNECTION_INITIALIZING let make a first retry in 1 second, then double the sleep time for each following retry until recovery exceeds 2 minutes.
Problem-ID:
15083

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)
+ linux-2.4.21-s390-08-june2003.diff (IBM)
+ linux-2.4.21-s390-08-june2003.diff (IBM)
+ linux-2.4.21-s390-09-june2003.diff (IBM)
+ linux-2.4.21-s390-10-june2003.diff (IBM)
+ xip2fs1 (see linuxvm.org/patches/index.html)
+ xip2fs2 (see linuxvm.org/patches/index.html)
+ linux-2.4.21-s390-11-june2003.diff (IBM)
+ linux-2.4.21-s390-12-june2003.diff (IBM)
+ linux-2.4.21-s390-13-june2003.diff (IBM)
+ linux-2.4.21-s390-14-june2003.diff (IBM)
+ linux-2.4.21-s390-15-june2003.diff (IBM)
+ linux-2.4.21-s390-16-june2003.diff (IBM)
+ linux-2.4.21-s390-17-june2003.diff (IBM)
+ linux-2.4.21-s390-18-fixed-june2003.diff (IBM)
+ linux-2.4.21-s390-19-june2003.diff (IBM)
+ linux-2.4.21-s390-20-june2003.diff (IBM)
+ linux-2.4.21-s390-21-june2003.diff (IBM)
+ linux-2.4.21-s390-22-june2003.diff (IBM)
+ linux-2.4.21-s390-23-june2003.diff (IBM)
+ linux-2.4.21-s390-24-june2003.diff (IBM)
+ linux-2.4.21-s390-25-june2003.diff (IBM)

Note: If On-demand timer is required, apply as last patch:
+ linux-2.4.21-s390-timer-04-june2003.diff (IBM)

Note: If you apply the above patches, you need as a minimum the 2005-02-14 version of the tape_3590 OCO module "tape3590-2.4.21-s390(x)-03-june2003.tar.gz".

Contact the IBM team

If you want to contact the Linux on System z IBM team refer to the Contact the Linux on System z IBM team page.