selftests: sigaltstack: sas # exit=1 - # Bail out! SP is not on sigaltstack - on clang build

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kselftest: sigaltstack 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.

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 sigaltstack
TAP version 13
1..1
# selftests: sigaltstack: sas
# # [NOTE] the stack size is 21104
# TAP version 13
# 1..3
# ok 1 Initial sigaltstack state was SS_DISABLE
# Bail out! SP is not on sigaltstack
# # Planned tests != run tests (3 != 1)
# # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
not ok 1 selftests: sigaltstack: sas # exit=1

Links,
  qemu-x86_64:
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15303778/suite/kselftest-sigaltstack/test/sigaltstack_sas/details/

  qemu-arm64:
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302557/suite/kselftest-sigaltstack/tests/
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302557/suite/kselftest-sigaltstack/test/sigaltstack_sas/log

kselftest: sigaltstack built with gcc-12 getting pass.

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 sigaltstack
TAP version 13
1..1
# selftests: sigaltstack: sas
# # [NOTE] the stack size is 50080
# TAP version 13
# 1..3
# ok 1 Initial sigaltstack state was SS_DISABLE
# # [RUN] signal USR1
# ok 2 sigaltstack is disabled in sighandler
# # [RUN] switched to user ctx
# # [RUN] signal USR2
# # [OK] Stack preserved
# ok 3 sigaltstack is still SS_AUTODISARM after signal
# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 1 selftests: sigaltstack: sas

Links,
 qemu-x86_64:
   - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15303751/suite/kselftest-sigaltstack/tests/

 qemu-arm64:
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302458/suite/kselftest-sigaltstack/tests/
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230307/testrun/15302458/suite/kselftest-sigaltstack/test/sigaltstack_sas/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/2MfXLbLsvBufVn1MrsnXVZ133Bf/bzImage
 \
 --modules https://storage.tuxsuite.com/public/linaro/lkft/builds/2MfXLbLsvBufVn1MrsnXVZ133Bf/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/2MfXLbLsvBufVn1MrsnXVZ133Bf/kselftest.tar.xz
 \
 --image docker.io/lavasoftware/lava-dispatcher:2023.01.0020.gc1598238f  \
 --tests kselftest-sigaltstack  \
 --timeouts boot=15


--
Linaro LKFT
https://lkft.linaro.org



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