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Kernel 2.4 based: June 2003 stream
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linux-2.4.21-s390-02-june2003.tar.gz
/ MD5 ... accumulated patch, recommended (2003-06-30)
linux-2.4.21-s390-02-june2003-patches.tar.gz
/ MD5 ... per-problem-patches, recommended (2003-06-30)
These patches contain the following linux kernel bug fixes:
| Description: |
multicast or broadcast flood ping hang on HiperSockets |
| Symptom: |
multicast or broadcast flood ping hang on HiperSockets |
| Problem: |
delayed freeing of skbs |
| Solution: |
poll for multicast queue earlier to not have skb hanging around
for a long time |
| Problem-ID: |
n/a |
| Description: |
starting a LCS network device with specific module parameters
causes an address exception |
| Symptom: |
1. start LCS module with parameter model_no=1 and
rel_adapter_no=1
2. starting the LCS network device causes an address exception |
| Problem: |
init_waitqueue_head was not called for a lanstat_wait in kernel
version > 2.3.0 |
| Solution: |
Properly initialize lanstat_wait |
| Problem-ID: |
n/a |
| Description: |
Wrong data direction of START STOP UNIT command. |
| Symptom: |
"RSP_CODE_FIELD_INVALID" messages and unable to access
device. |
| Problem: |
When sending a START STOP UNIT command to a device the SCSI
stack sets the data direction to SCSI_DATA_READ. Because of this
the zfcp device driver creates an FCP_CMND IU where RDDATA is set
to 1.
Some hardware will recognize this invalid setting and respond to
this with an FCP_RSP IU where the RSP_CODE field is set to
"FCP_CMND Fields Invalid". |
| Solution: |
Set data direction to SCSI_DATA_NONE. |
| Problem-ID: |
n/a |
| Description: |
Deadlock in memory management code. |
| Symptom: |
Mapping and accessing memory on a 64 bit zLinux system that
requires a full segment table can lead to a deadlock if the system
is low on memory. |
| Problem: |
The extension of a half-sized pmd (8K) to a full-sized pmd
(16K) requires the allocation of 4 consequitive pages. If the
system starts swapping to allocate these 4 pages and touches the
page table the reallocation is done for it deadlocks on the page
table lock. |
| Solution: |
Release the page table lock in pgd_populate before calling
__get_free_pages. |
| Problem-ID: |
n/a |
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)
Note: If On-demand timer is required, apply as last patch:
+ linux-2.4.21-s390-timer-june2003.diff (IBM)
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