kdelibs tests failing - icon-cache related?

[Pavel Heimlich, a.k.a. hajma]

Hi,
there are many kdelibs tests failing with a mention of icon-cache,
example below.

googling for the messages found me
http://techbase.kde.org/Getting_Started/Build/KDE4/Troubleshooting#Running_programs
which suggests installing kdebase - but how can I install kdebase when
I don't even have kdelibs?
Or is it a red herring and I should only concentrate on the segfault
(signal 11)?

any hints appreciated

P.

********* Start testing of CompletionTest *********
Config: Using QTest library 4.6.2, Qt 4.6.2
PASS   : CompletionTest::initTestCase()
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdecore
(KSycoca) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/sycoca/ksycoca.cpp:196:
Trying to open ksycoca from
"/export/home/test/.kde-unit-test/cache-dashboardbuild/ksycoca4"
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)
/export/home/test/Dashboards/kdelibs/srcdir/kdecore/localization/klocale.cpp:2419:
Cannot resolve system encoding, defaulting to ISO 8859-1.
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kparts
/export/home/test/Dashboards/kdelibs/srcdir/kparts/part.cpp:735:
setModified( true )
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QSYSTEM: CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader): Error: standard icon theme "oxygen" not found!

QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QDEBUG : CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader) /export/home/test/Dashboards/kdelibs/srcdir/kdecore/util/kshareddatacache.cpp:920:
Failed to establish shared memory mapping, will fallback to private
memory -- memory usage will increase
QSYSTEM: CompletionTest::testFilterEmptyRange() qttest(18712)/kdeui
(KIconLoader): There is a very serious problem with the KDE data cache
"icon-cache" giving up trying to access cache.
QFATAL : CompletionTest::testFilterEmptyRange() Received signal 11
FAIL!  : CompletionTest::testFilterEmptyRange() Received a fatal error.
   Loc: [Unknown file(0)]
Totals: 1 passed, 1 failed, 0 skipped
********* Finished testing of CompletionTest *********

*** Exception executing: Child aborted