On Sun, 27 Jul 2025 21:34:12 +0200 Sandro Mani <manisandro@xxxxxxxxx> wrote: > Hi > > scotch is currently FTBFS on ppc64le (affects the current 7.0.7, the > previous 7.0.6, as well as the new 7.0.8 release), failing with [1] > > gmake[2]: *** [src/libscotch/CMakeFiles/ptscotchf_h.dir/build.make:77: src/include/ptscotchf.h] Illegal instruction (core dumped) > > 7.0.6 previously successfully built with gcc-0:15.0.1-0.3.fc42.1.ppc64le and now fails with gcc-0:15.1.1-5.fc43.1.ppc64le, so this looks like a gcc regression. > > Being this on ppc64le and having no access to such a machine, how can I debug this? you have access to a system from https://fedoraproject.org/wiki/Test_Machine_Resources_For_Package_Maintainers and it can be reproduced there. But it needs the Power10 system (same as current koji builders), not the Power9 (pre-DC-migration koji builders, it builds there OK). ppc64le-redhat-linux-gnu-openmpi/src/libscotch/ptdummysizes is the crashing binary ... and running it under gdb gives ... Program received signal SIGILL, Illegal instruction. 0x00007ffff774e404 in sbrk () from /lib64/glibc-hwcaps/power10/libc.so.6 (gdb) where #0 0x00007ffff774e404 in sbrk () from /lib64/glibc-hwcaps/power10/libc.so.6 #1 0x00007ffff787b38c in ucm_fire_mmap_events_internal () from /lib64/libucm.so.0 #2 0x00007ffff787bd88 in ucm_mmap_test_events_nolock () from /lib64/libucm.so.0 #3 0x00007ffff78818b8 in ucm_mmap_install () from /lib64/libucm.so.0 #4 0x00007ffff7881b30 in ucm_mmap_init () from /lib64/libucm.so.0 #5 0x00007ffff7881c2c in ucm_library_init () from /lib64/libucm.so.0 #6 0x00007ffff7881cbc in ucm_set_global_opts () from /lib64/libucm.so.0 #7 0x00007ffff725745c in ucs_init_ucm_opts () from /lib64/libucs.so.0 #8 0x00007ffff7243fb0 in ucs_init () from /lib64/libucs.so.0 #9 0x00007ffff7f989bc in call_init (l=<optimized out>, argc=1, argv=0x7fffffffece8, env=0x7fffffffecf8) at dl-init.c:74 #10 _dl_init (main_map=0x7ffff7ff12f0, argc=1, argv=0x7fffffffece8, env=0x7fffffffecf8) at dl-init.c:121 #11 0x00007ffff7fc3eb8 in _dl_start_user () from /lib64/ld64.so.2 So it might be glibc actually ... Dan -- _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
