On Mon, Aug 22, 2022 at 07:43:18PM +0800, Qu Wenruo wrote: > Tried to compile gcc10 from AUR, which failed to compile. > > > Anyway, thanks to the advice from Willy, I got the pre-built crosstool > (gcc 7.5) set up, with some small tweaks like disabling > CONFIG_RANDOMIZE_BASE to workaround the RELOCS failure, it at least > compiles for v4.14.0. > > Although there is still warning from test_gen_len: > > Warning: ffffffff818158cc: 0f ff e9 ud0 %ecx,%ebp > Warning: objdump says 3 bytes, but insn_get_length() says 2 > Warning: arch/x86/tools/test_get_len found difference at > <cpu_idle_poll>:ffffffff818159b0 Strange, sounds like a binutils issue though I could be wrong. > And unfortunately v4.14 still fails to boot, even with GCC 7.5, which > provides an almost perfect (except above wanrings) build. > > I also tried to reduce the CPUid, from host-passthru to qemu64, and > rebuild, no change (same test_get_len wanrings, same boot failure). > > No clue at all now, would try older debian in a VM then. I suggest that instead of switching distros you should rather first try 4.14.0 to verify if there was a regression affecting your system. And if so, then a bisect will certainly be welcome. If it still does not work, then maybe a different distro could help, though I doubt it. Willy
