minc2-dimension-test fails on s390x

[sanjayankur31]

Hello, we're getting build failures only on s390x on Fedora 31 (currently rawhide)

-- The C compiler identification is GNU 9.0.1
-- The CXX compiler identification is GNU 9.0.1

The hardware info is this:

CPU info:
Architecture:        s390x
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Big Endian
CPU(s):              2
On-line CPU(s) list: 0,1
Thread(s) per core:  1
Core(s) per socket:  1
Socket(s) per book:  1
Book(s) per drawer:  1
Drawer(s):           2
NUMA node(s):        1
Vendor ID:           IBM/S390
Machine type:        2964
CPU dynamic MHz:     5000
CPU static MHz:      5000
BogoMIPS:            3033.00
Hypervisor:          z/VM 6.4.0
Hypervisor vendor:   IBM
Virtualization type: full
Dispatching mode:    horizontal
L1d cache:           128K
L1i cache:           96K
L2d cache:           2048K
L2i cache:           2048K
L3 cache:            65536K
L4 cache:            491520K
NUMA node0 CPU(s):   0,1
Flags:               esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te vx sie


Memory:
              total        used        free      shared  buff/cache   available
Mem:        8238336      810300     5007092         336     2420944     7336452
Swap:       6929220       25088     6904132


Storage:
Filesystem      Size  Used Avail Use% Mounted on
/dev/md127      111G   13G   98G  12% /

The relevant bits from the build log are:

test 41
      Start 41: minc2-dimension-test
41: Test command: /builddir/build/BUILD/libminc-release-2.4.03/build/testdir/minc2-dimension-test
41: Test timeout computed to be: 1500
41: Error reported on line #297, wrong result: 0
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 1
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 2
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 3
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 4
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 5
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 6
41: Error reported on line #294, failed: -1
41: Error reported on line #297, wrong result: 7
41: Error reported on line #307, wrong result: 0
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 1
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 2
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 3
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 4
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 5
41: Error reported on line #304, failed: -1
41: Error reported on line #307, wrong result: 6
41: Error reported on line #304, failed: -1
41: Error reported on line #321, wrong result: 0
41: Error reported on line #321, wrong result: 1
41: Error reported on line #321, wrong result: 2
41: Error reported on line #321, wrong result: 3
41: Error reported on line #321, wrong result: 4
41: Error reported on line #321, wrong result: 5
41: Error reported on line #321, wrong result: 6
41: Error reported on line #321, wrong result: 7
41: 37 errors reported
41/53 Test #41: minc2-dimension-test .............***Failed    0.02 sec

The complete build log is here: build.txt

More information on the build here: https://koji.fedoraproject.org/koji/taskinfo?taskID=33492257

[sanjayankur31]

Any hints here? Is s390x a supported architecture?

[vfonov]

I think none of us currently have time to deal with setting up a test-rig where we can debug this error. Any suggestions?

[opoplawski]

@sanjayankur31 See https://fedoraproject.org/wiki/Architectures/s390x#Shell_access_for_debugging - Dan might be able to help you out. @vfonov if you can suggest things to test, that would be helpful.

[sanjayankur31]

👍 I'll go speak to Dan. Yes, if you could give us some hints on what to look at, that'll be quite useful @vfonov .