Thanks for your kindly reply. Let me have a check. > On May 23, 2020, at 2:28 AM, Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > > On Wed, Apr 29, 2020 at 02:46:24PM +0800, Huaixin Chang wrote: >> Move building of fast lookup table from boot to sorttable tool. This saves us >> 6380us boot time on Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz with cores. >> >> Huaixin Chang (2): >> scripts/sorttable: Build orc fast lookup table via sorttable tool >> x86/unwind/orc: Remove unwind_init() from x86 boot >> >> arch/x86/include/asm/unwind.h | 2 - >> arch/x86/kernel/setup.c | 2 - >> arch/x86/kernel/unwind_orc.c | 51 ---------------------- >> scripts/sorttable.h | 99 ++++++++++++++++++++++++++++++++++++++++--- >> 4 files changed, 92 insertions(+), 62 deletions(-) > > I tested this (rebased on tip/master), it seems to break ORC > completely... e.g. /proc/self/stack is empty. > > -- > Josh
