Hello, This honestly looks like an infrastructure issue. How loaded are your workers when running this test? Also, I'm not sure how good is the rtc emulation in qemu (which is a good part of what is being tested here). On 07/03/2023 12:47:50+0530, Naresh Kamboju wrote: > kselftest: rtc built with clang-16 getting failed but passed with gcc-12 > build. Please find more details about test logs on clang-16 and gcc-12 > and steps to reproduce locally on your machine by using tuxrun. > > On the qemu-x86-64 clang builds it is intermittent failure; > you could notice that from the test history link below. > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > Test log: > ---------- > Linux version 6.3.0-rc1-next-20230307 (tuxmake@tuxmake) (Debian clang > version 16.0.0 (++20230228093516+60692a66ced6-1~exp1~20230228093525.41), > Debian LLD 16.0.0) #1 SMP PREEMPT @1678159722 > ... > kselftest: Running tests in rtc > TAP version 13 > 1..1 > # selftests: rtc: rtctest > # TAP version 13 > # 1..8 > # # Starting 8 tests from 1 test cases. > # # RUN rtc.date_read ... > # # rtctest.c:54:date_read:Current RTC date/time is 07/03/2023 03:55:04. > # # OK rtc.date_read > # ok 1 rtc.date_read > # # RUN rtc.date_read_loop ... > # # rtctest.c:96:date_read_loop:Continuously reading RTC time for 30s > (with 11ms breaks after every read). > # # rtctest.c:122:date_read_loop:Performed 2630 RTC time reads. > # # OK rtc.date_read_loop > # ok 2 rtc.date_read_loop > # # RUN rtc.uie_read ... > # # OK rtc.uie_read > # ok 3 rtc.uie_read > # # RUN rtc.uie_select ... > # # OK rtc.uie_select > # ok 4 rtc.uie_select > # # RUN rtc.alarm_alm_set ... > # # rtctest.c:222:alarm_alm_set:Alarm time now set to 03:55:44. > # # rtctest.c:241:alarm_alm_set:data: 1a0 > # # OK rtc.alarm_alm_set > # ok 5 rtc.alarm_alm_set > # # RUN rtc.alarm_wkalm_set ... > # # rtctest.c:284:alarm_wkalm_set:Alarm time now set to 07/03/2023 03:55:47. > # # rtctest.c:290:alarm_wkalm_set:Expected -1 (-1) != rc (-1) > # # alarm_wkalm_set: Test terminated by assertion > # # FAIL rtc.alarm_wkalm_set > # not ok 6 rtc.alarm_wkalm_set > # # RUN rtc.alarm_alm_set_minute ... > # # rtctest.c:332:alarm_alm_set_minute:Alarm time now set to 03:56:00. > # # rtctest.c:351:alarm_alm_set_minute:data: 1a0 > # # OK rtc.alarm_alm_set_minute > # ok 7 rtc.alarm_alm_set_minute > # # RUN rtc.alarm_wkalm_set_minute ... > # # rtctest.c:394:alarm_wkalm_set_minute:Alarm time now set to > 07/03/2023 03:57:00. > # # rtctest.c:400:alarm_wkalm_set_minute:Expected -1 (-1) != rc (-1) > # # alarm_wkalm_set_minute: Test terminated by assertion > # # FAIL rtc.alarm_wkalm_set_minute > # not ok 8 rtc.alarm_wkalm_set_minute > # # FAILED: 6 / 8 tests passed. > # # Totals: pass:6 fail:2 xfail:0 xpass:0 skip:0 error:0 > > Links, > > qemu-x86_64: > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230306/testrun/15287646/suite/kselftest-rtc/test/rtc_rtctest/details/ > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230306/testrun/15287646/suite/kselftest-rtc/test/rtc_rtctest/log > > qemu-arm64: > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302349/suite/kselftest-rtc/test/rtc_rtctest/log > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302349/suite/kselftest-rtc/tests/ > > Test history: > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302349/suite/kselftest-rtc/test/rtc_rtctest/history/ > > Test log: > --------- > Linux version 6.3.0-rc1-next-20230307 (tuxmake@tuxmake) > (aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils > for Debian) 2.40) #1 SMP PREEMPT @1678159736 > ... > kselftest: Running tests in rtc > TAP version 13 > 1..1 > # selftests: rtc: rtctest > # TAP version 13 > # 1..8 > # # Starting 8 tests from 1 test cases. > # # RUN rtc.date_read ... > # # rtctest.c:52:date_read:Current RTC date/time is 07/03/2023 03:48:22. > # # OK rtc.date_read > # ok 1 rtc.date_read > # # RUN rtc.date_read_loop ... > # # rtctest.c:95:date_read_loop:Continuously reading RTC time for 30s > (with 11ms breaks after every read). > # # rtctest.c:122:date_read_loop:Performed 2670 RTC time reads. > # # OK rtc.date_read_loop > # ok 2 rtc.date_read_loop > # # RUN rtc.uie_read ... > # # OK rtc.uie_read > # ok 3 rtc.uie_read > # # RUN rtc.uie_select ... > # # OK rtc.uie_select > # ok 4 rtc.uie_select > # # RUN rtc.alarm_alm_set ... > # # rtctest.c:221:alarm_alm_set:Alarm time now set to 03:49:02. > # # rtctest.c:241:alarm_alm_set:data: 1a0 > # # OK rtc.alarm_alm_set > # ok 5 rtc.alarm_alm_set > # # RUN rtc.alarm_wkalm_set ... > # # rtctest.c:281:alarm_wkalm_set:Alarm time now set to 07/03/2023 03:49:05. > # # OK rtc.alarm_wkalm_set > # ok 6 rtc.alarm_wkalm_set > # # RUN rtc.alarm_alm_set_minute ... > # # rtctest.c:331:alarm_alm_set_minute:Alarm time now set to 03:50:00. > <47>[ 106.383091] systemd-journald[98]: Sent WATCHDOG=1 notification. > # # rtctest.c:351:alarm_alm_set_minute:data: 1a0 > # # OK rtc.alarm_alm_set_minute > # ok 7 rtc.alarm_alm_set_minute > # # RUN rtc.alarm_wkalm_set_minute ... > # # rtctest.c:391:alarm_wkalm_set_minute:Alarm time now set to > 07/03/2023 03:51:00. > # # OK rtc.alarm_wkalm_set_minute > # ok 8 rtc.alarm_wkalm_set_minute > # # PASSED: 8 / 8 tests passed. > # # Totals: pass:8 fail:0 xfail:0 xpass:0 skip:0 error:0 > ok 1 selftests: rtc: rtctest > > Links, > qemu-x86_64: > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15303767/suite/kselftest-rtc/test/rtc_rtctest/details/ > qemu-arm64: > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302372/suite/kselftest-rtc/tests/ > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302372/suite/kselftest-rtc/test/rtc_rtctest/log > > Steps to reproduce: > -------------- > > # To install tuxrun on your system globally: > # sudo pip3 install -U tuxrun==0.37.2 > # > # See https://tuxrun.org/ for complete documentation. > > tuxrun \ > --runtime podman \ > --device qemu-x86_64 \ > --boot-args rw \ > --kernel https://storage.tuxsuite.com/public/linaro/lkft/builds/2McWP6obiL1x51zgkgLXRAmI9Ei/bzImage > \ > --modules https://storage.tuxsuite.com/public/linaro/lkft/builds/2McWP6obiL1x51zgkgLXRAmI9Ei/modules.tar.xz > \ > --rootfs https://storage.tuxboot.com/debian/bookworm/amd64/rootfs.ext4.xz \ > --parameters SKIPFILE=skipfile-lkft.yaml \ > --parameters KSELFTEST=https://storage.tuxsuite.com/public/linaro/lkft/builds/2McWP6obiL1x51zgkgLXRAmI9Ei/kselftest.tar.xz > \ > --image docker.io/lavasoftware/lava-dispatcher:2023.01.0020.gc1598238f \ > --tests kselftest-rtc \ > --timeouts boot=15 > > -- > Linaro LKFT > https://lkft.linaro.org -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com