[LTP] getrusage04 issues on virtualized env

[Anton Smorodskyi]

Hi all,

I am running LTP tests in different public cloud providers ( Azure , GCE
, Amazon ). Currently have issues with getrusage04 test on Azure . Looks
like
https://github.com/linux-test-project/ltp/commit/3e0ba9aa6a7c933a74d6525ca69028992a3ba1ad
not behaves as expected ==> test is not actually skipped on Azure and
failing because of known instability of the tests in virtual environments :

sh-4.4# getrusage04; echo cmd-exit-774-$?
getrusage04    0  TINFO  :  Expected timers granularity is 4000 us
getrusage04    0  TINFO  :  Using 1 as multiply factor for max [us]time
increment (1000+4000us)!
getrusage04    0  TINFO  :  utime:        2538us; stime:           0us
getrusage04    0  TINFO  :  utime:        3813us; stime:        1906us
getrusage04    0  TINFO  :  utime:        6317us; stime:        6317us
getrusage04    0  TINFO  :  utime:        7407us; stime:        6317us
getrusage04    0  TINFO  :  utime:        8849us; stime:        8849us
getrusage04    0  TINFO  :  utime:        9587us; stime:       12783us
getrusage04    0  TINFO  :  utime:        9637us; stime:       16062us
getrusage04    0  TINFO  :  utime:       10709us; stime:       21418us
getrusage04    1  TFAIL  :  getrusage04.c:133: stime increased > 5000us:


I manually checked "systemd-detect-virt" execution on VM in azure and it
returns "microsoft" as expected. Digging into tst_is_virt source code
and around also haven't bring any ideas to me :(

Any hints how to follow up ?

-- 
Anton Smorodskyi <asmorodskyi@suse.com>
QA Engineer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5
90409 Nuremberg Germany
(HRB 36809, AG Nürnberg)
Managing Director: Felix Imendörffer