** Changed in: linux (Ubuntu Kinetic) Importance: Undecided => Medium
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2000772 Title: powerpc-build in ubuntu_kernel_selftests failed on P9 with K-5.19 Status in ubuntu-kernel-tests: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Kinetic: In Progress Bug description: [Impact] When trying to build powerpc tests from ubuntu_kernel_selftests, it will fail with: inlined from ‘cycles_with_mmcr2’ at cycles_with_mmcr2_test.c:81:3: /usr/include/powerpc64le-linux-gnu/bits/stdio2.h:86:10: error: ‘actual’ may be used uninitialized [-Werror=maybe-uninitialized] 86 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ()); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cycles_with_mmcr2_test.c: In function ‘cycles_with_mmcr2’: cycles_with_mmcr2_test.c:25:36: note: ‘actual’ was declared here 25 | uint64_t val, expected[2], actual; | ^~~~~~ cc1: all warnings being treated as errors [Fix] * ff446cd768 "selftests/powerpc: Avoid GCC 12 uninitialised variable warning" This patch can be cherry-picked into Kinetic kernel. [Test] Apply this patch to the kernel tree and build it with: sudo make -C linux/tools/testing/selftests TARGETS=powerpc With this error fixed, test compliation can finish without any issue. [Where problems could occur] Change for test case, no impact to acutal function. [Original Bug Report] Issue found with K-5.19.0-28-generic on P9 node baltar This should not be considered as a regression since ubuntu_kernel_selftests will be blocked by the net test crash before this powerpc tests can be started. This was found by manually running the test. Test build failed with: gcc -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"unknown"' -I/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/include -m64 -no-pie cycles_with_mmcr2_test.c ../../harness.c ../../utils.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S -o /home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test In file included from /usr/include/stdio.h:906, from cycles_with_mmcr2_test.c:6: In function ‘printf’, inlined from ‘cycles_with_mmcr2’ at cycles_with_mmcr2_test.c:81:3: /usr/include/powerpc64le-linux-gnu/bits/stdio2.h:86:10: error: ‘actual’ may be used uninitialized [-Werror=maybe-uninitialized] 86 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ()); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cycles_with_mmcr2_test.c: In function ‘cycles_with_mmcr2’: cycles_with_mmcr2_test.c:25:36: note: ‘actual’ was declared here 25 | uint64_t val, expected[2], actual; | ^~~~~~ cc1: all warnings being treated as errors make[3]: *** [../../../lib.mk:173: /home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test] Error 1 Please find attachment for the complete build log. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2000772/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
