getrusage04 from ubuntu_ltp_syscalls failed on Azure kernels 4.15/5.4 (T/X/F)

[Po-Hsu Lin]

Issue found on some instances with X-azure 4.15.0-1100.111~16.04.1:
* Basic_A2
* Standard_F2s_v2
* Standard_F2s_v2

 startup='Thu Nov 19 19:52:16 2020'
 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: 0us; stime: 951us
 getrusage04 0 TINFO : utime: 2361us; stime: 2361us
 getrusage04 0 TINFO : utime: 5893us; stime: 2946us
 getrusage04 0 TINFO : utime: 9513us; stime: 3171us
 getrusage04 0 TINFO : utime: 13346us; stime: 3336us
 getrusage04 0 TINFO : utime: 17236us; stime: 3447us
 getrusage04 0 TINFO : utime: 21166us; stime: 3527us
 getrusage04 0 TINFO : utime: 25098us; stime: 3585us
 getrusage04 0 TINFO : utime: 29051us; stime: 3631us
 getrusage04 0 TINFO : utime: 33015us; stime: 3668us
 getrusage04 0 TINFO : utime: 36993us; stime: 3699us
 getrusage04 0 TINFO : utime: 40963us; stime: 3723us
 getrusage04 0 TINFO : utime: 41198us; stime: 7490us
 getrusage04 0 TINFO : utime: 45158us; stime: 7526us
 getrusage04 0 TINFO : utime: 45351us; stime: 11337us
 getrusage04 0 TINFO : utime: 49310us; stime: 11379us
 getrusage04 0 TINFO : utime: 49465us; stime: 15220us
 getrusage04 0 TINFO : utime: 53973us; stime: 20759us
 getrusage04 1 TFAIL : getrusage04.c:133: stime increased > 5000us:
 tag=getrusage04 stime=1605815536 dur=0 exit=exited stat=1 core=no cu=5 cs=2

This should not be a blocker as this is not failing on all the instances.

[Ian May (ian-may)]

focal/linux-azure 5.4.0-1047.49 sru-20210412

[Kleber Sacilotto de Souza (kleber-souza)]

Found with trusty/linux-azure 4.15.0-1114.127~14.04.1.

[Krzysztof Kozlowski (krzk)]

Found on focal/azure-5.8 5.8.0-1031.33~20.04.1

[Krzysztof Kozlowski (krzk)]

Test seems to pass on AWS and maybe other clouds because it detectx Xen and KVM skips. Here log on AWS t3.xlarge (KVM detected):
utils:0153| [stdout] getrusage04 1 TCONF : getrusage04.c:201: This testcase is not supported on this virtual machine.
utils:0153| [stdout] getrusage04 2 TCONF : getrusage04.c:201: Remaining cases not appropriate for configuration

[Krzysztof Kozlowski (krzk)]

Sent pull request upstream:
https://github.com/linux-test-project/ltp/pull/827

[Krzysztof Kozlowski (krzk)]

Fix accepted upstream (LTP).

[Guilherme G. Piccoli (gpiccoli)]

Thanks a lot Krzysztof! Just found that on T-4.15/Azure, in this cycle (sru-20210531), hope soon your fix is pulled into our testing and stop to see this one.

Cheers,

Guilherme