Debian/390 IBM 9672 Standalone IPL

[Carlos A. Bodra]

Hello,

From some days ago when I reported a problem of PSW all 04s when loading
Debian/390 2.4.17 under an IBM 9672 R22, we did some homework under
VM and get a new situation. This is described bellow.
We go ahead using Debian/390 under VM/ESA 2.4.0 and updated it to new
level 2.4.19 and install a lot of IBM recommend patch4s (from linux/390 home
page). We re-compiled kernel and boot it under VM without problems.
Just for fun we try to boot it standalone, (yes, Gerhard Tonn, dedicate
dasds
under VM works standalone!!!) and we got a new problem.
Now Debian loads and display a lot of messages in HMC Software Console
and got a "specification exception 0006". The final messages before
Debian/390
stops are:
......
Posix conformance testing by UNIFIX
Detected 2 CPU4s
Boot CPU Address 0
CPU 0 PHYS_idx = 0 .....
Waiting on wait_init_idle (map = 0x2)
CPU 1 PHYS_idx = 1 .....
All processors have done init_idle
init_mach: starting machine check handler
init_mach: machine check buffer: head 002041c8
specification exception: 0006
cpu: 1 not tainted
process kmcheck (pid 2, task: 0f004000, ksp: 0f005f10)
krnl psw: 04081000 80022664
krnl gprs: 00000000 001bd688 80022660 80022660
          001a0c9e 000225ac 00000000 00000000
          00000000 000225ac 002c30a8 00102b10
          0efbf000 800225b4 0f005f38 0f005ea8
krnl acrs: 00000000 00000000 00000000 00000000
          00000000 00000000 00000000 00000000
          00000000 00000000 00000000 00000000
          00000000 00000000 00000000 00000000
krnl code: 1f 22 ba 23 10 00 a7 44 ff fb 41 50 f0 60 41 10 f0 90 50 10
call trace <00102918> <000179d8>
And Debian/390 stops.
Any hint or tip about above description?
Thanks in advance





--
Carlos Alberto Bodra Becher
VM/VSE System Consultant
Sco Paulo - SP - Brasil