Hi, you get following error when trying to boot a glibc system in qemu-system-ppc: Run /sbin/init as init process init[1]: segfault (11) at 7369693e nip 7eb024 lr 7ead8c code 1 in libc.so.6[772000+1fa000] init[1]: code: 7d5d5378 815efd38 39200000 913f0000 814a0000 813f000c 75291fbf 2c0a0000 init[1]: code: 913f000c 41e2fe94 893d0000 5529103a <7d2a482e> 2c090000 41c2fe80 7fe4fb78 Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b CPU: 0 PID: 1 Comm: init Not tainted 5.15.0 #1 Call Trace: [f1019d80] [c004c054] panic+0x124/0x308 (unreliable) [f1019de0] [c004eadc] do_exit+0x910/0x918 [f1019e30] [c004fb38] do_group_exit+0x34/0xa8 [f1019e50] [c005e550] get_signal+0x1ec/0x86c [f1019eb0] [c000cdcc] do_notify_resume+0x78/0x304 [f1019f10] [c00128a0] interrupt_exit_user_prepare_main+0xf8/0x130 [f1019f30] [c0019224] interrupt_return+0x14/0x144 --- interrupt: 300 at 0x7eb024 NIP: 007eb024 LR: 007ead8c CTR: 007ff680 REGS: f1019f40 TRAP: 0300 Not tainted (5.15.0) MSR: 0000d032 <EE,PR,ME,IR,DR,RI> CR: 48002424 XER: 20000000 DAR: 7369693e DSISR: 40000000 GPR00: 007e16a0 af9058c0 a7b8a430 00ab1879 00000000 af905d20 af906138 af906630 GPR08: 00000030 000001cc 73696772 00000000 48002424 00acfa54 00000000 af905d20 GPR16: 00000000 00ab1879 af905d20 00000000 00000000 4ec40000 af906630 00000000 GPR24: af906138 af9066f8 af906138 00000000 00000000 00ab187a 00981fb8 af905d20 NIP [007eb024] 0x7eb024 LR [007ead8c] 0x7ead8c --- interrupt: 300 Rebooting in 180 seconds.. best regards Waldemar
Hi Waldemar, Thanks for the report! I can reproduce it easily with gcc-10 and gcc-11 but not with gcc-9. The powerpc 7400 support has been broken since the beginning of gcc-10 development. After the commit [1] removing -many from the options passed by default to the assembler, the build of this defconfig fail with assembler errors: arch/powerpc/perf/bhrb.S: Assembler messages: arch/powerpc/perf/bhrb.S:22: Error: unrecognized opcode: `cmpldi' arch/powerpc/perf/bhrb.S:24: Error: unrecognized opcode: `ld' arch/powerpc/perf/bhrb.S:25: Error: unrecognized opcode: `sldi' It was fixed later by the commit [2] before the gcc-10 release but glibc segfault at runtime since then. The Buildroot gitlab-ci testing only test with uClibc-ng libc but I try sometime with Glibc... but I missed this issue. This issue should be reported to gcc. [1] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=e154242724b084380e3221df7c08fcdbd8460674 [2] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=66711279083121b07d909ac0fc2f3a744ac7c937 Best regards, Romain
Thank you for your report. The issue tracker for the Buildroot project has been moved to the Gitlab.com issue tracker: https://gitlab.com/buildroot.org/buildroot/-/issues We are taking this opportunity to close old issues in this old tracker. If you believe your issue is still relevant, please open one in the new issue tracker. Thank you!