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Kernel 2.4 based: June 2003 stream
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linux-2.4.21-s390-03-june2003.tar.gz
/ MD5 ... accumulated patch, recommended (2003-07-25)
linux-2.4.21-s390-03-june2003-patches.tar.gz
/ MD5 ... per-problem-patches, recommended (2003-07-25)
These patches contain the following linux kernel bug fixes:
| Description: |
xpram parameter parsing. |
| Symptom: |
The xpram driver doesn't accept hexadecimal sizes on the
xpram_parts parameter with a single digit after the 0x. |
| Problem: |
The check in xpram_int_format that determines if a number is in
hexadecimal is broken. |
| Solution: |
Fix the check for hexadecimal numbers. |
| Problem-ID: |
3284 |
| Description: |
Use z990 path group algorithm also on 64 bit |
| Note: |
applicable for 64-bit Linux, only |
| Description: |
spinlock problem with unsupported ioctls in qeth |
| Symptom: |
deadlock in ioctl of unsupported ioctl of qeth |
| Problem: |
spinlock was not released |
| Solution: |
relese spinlock before leaving function |
| Problem-ID: |
3287 |
| Description: |
unloading qeth module results in a kernel oops while osasnmpd
is running |
| Symptom: |
1. osasnmpd is running
2. shut down all network interfaces related to qeth module
3. rmmod qeth causes a kernel oops |
| Problem: |
osasnmpd has an open ioctl on /proc/qeth without incrementing
qeth module usage counter |
| Solution: |
increment the qeth module usage counter when opening the ioctl
and decrement it when leaving the function and so returning to
osasnmpd |
| Problem-ID: |
3317 |
| Description: |
sysinfo doesn't return all data on 31 bit emu. |
| Symptom: |
mem_unit info missing. |
| Problem: |
Some data members were not copied in emu layer. |
| Solution: |
Copy of data members added. |
| Problem-ID: |
n/a |
| Note: |
applicable for 64-bit Linux, only |
| Description: |
cio: ctcs not detected; varying of network chpids broken. |
| Symptom: |
1. ctcs are not detected if the other side of the connection is
active.
2. When varying a networking chpid off and then on again via
/proc/chpids, the networking interface does not recover. |
| Problem: |
1. SNID is not supported on ctcs, the command code means
something else. This leads to ctcs being detected as boxed.
2. The channel device layer cannot handle DEVSTAT_NOT_ACC. |
| Solution: |
1. Don't do a SNID as first action during device recognition.
If a SID causes timeout, consider the device boxed. Only do
SNID/SPID if the device driver requests it during
request_irq.
2. Only use DEVSTAT_NOT_ACC for device drivers which requested
SNID/SPID. Use DEVSTAT_DEVICE_GONE for other device drivers. |
| Problem-ID: |
3395 |
| Description: |
cio: link incident handling. |
| Symptom: |
After receiving a link incident, Linux hangs. |
| Problem: |
The event information stored after a link incident contains a
reporting chpid; this may or may not be the chpid with the link
incident. |
| Solution: |
Check the link incident record received for the chpid with the
link incident. |
| Problem-ID: |
3398 |
| Description: |
<ccwcache>: Incorrect cache index determination |
| Symptom: |
random kernel oops |
| Problem: |
The incorrect comparison caused the wrong cache line to be
selected for maximum size requests. |
| Solution: |
fixed the comparison |
| Problem-ID: |
3450 |
| Description: |
siginfo_t structure on user stack incorrect. |
| Symptom: |
Unwinding over a rt signal frame crashes user programs. |
| Problem: |
The kernel definition of the siginfo_t structure for s390x is
136 bytes long instead of the correct length of 128. The kernel
will create a stack frame for rt signal that the unwind code can't
process. |
| Solution: |
Reduce the size of the _pad array. |
| Problem-ID: |
3490 |
| Note: |
applicable for 64-bit Linux, only |
| Description: |
cannot rmmod lcs module when TR-devices are used |
| Symptom: |
rmmod lcs does not work, when ipv6 and TR were used |
| Problem: |
IPv6 gets some stray packets and looses track of
dev->refcnt |
| Solution: |
make lcs not give v6 packets to the stack |
| Problem-ID: |
3491 |
| Description: |
HW checksum fix |
| Symptom: |
HW checksumming did not work |
| Problem: |
problem in bit usage of QDIO header |
| Solution: |
interpret QDIO header correctly |
| Problem-ID: |
n/a |
| Description: |
reduce stack usage |
| Symptom: |
symlink loops on NFS share causes oops |
| Problem: |
stack overflow |
| Solution: |
reduce stack usage by inlining some functions |
| Problem-ID: |
3344 |
| Description: |
added qeth options to Configure.help |
| Description: |
added z90crypt options to Configure.help |
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)
Note: If On-demand timer is required, apply as last patch:
+ linux-2.4.21-s390-timer-june2003.diff (IBM)
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