On Mon, Jul 31, 2023 at 11:50:22PM +0200, Jiri Olsa wrote: > > Ummmm what? I can't! What repro are you seeing on x86, exactly? > > # cat /proc/kallsyms | grep ksys_read > ffffffff8151e450 T ksys_read > > # objdump -d --start-address=0xffffffff8151e450 --stop-address=0xffffffff8151e460 /proc/kcore > > /proc/kcore: file format elf64-x86-64 > > objdump: Reading section load1 failed because: Bad address > > > jirka Locally I don't see this issue. How odd. The bug doesn't manifest as a 'bad address' in the arm64 repros either. I wonder if this is something unrelated... In any case I have a candidate fix for the bug at https://lore.kernel.org/all/20230731215021.70911-1-lstoakes@xxxxxxxxx/ which should hopefully address the underlying issue with minimum change.