On Tue, Dec 02, 2025 at 03:56:26PM -0500, Andrey Grodzovsky wrote: > On 12/2/25 13:19, Josh Poimboeuf wrote: > > Fix livepatch stalls which may be seen when a task is blocked with BPF > > JIT on its kernel stack. > > > > Josh Poimboeuf (2): > > bpf: Add bpf_has_frame_pointer() > > x86/unwind/orc: Support reliable unwinding through BPF stack frames > > > > arch/x86/kernel/unwind_orc.c | 39 +++++++++++++++++++++++++----------- > > arch/x86/net/bpf_jit_comp.c | 10 +++++++++ > > include/linux/bpf.h | 3 +++ > > kernel/bpf/core.c | 16 +++++++++++++++ > > 4 files changed, 56 insertions(+), 12 deletions(-) > > > > > Acked-and-tested-by: Andrey Grodzovsky<[email protected]> > > Question - This looks to be x86 specific issue since ORC unwinding is x86 > specific and as such this has no impact on ARM, correct ?
Correct, though if ARM ever switches to sframe for in-kernel unwinding, it might also want to use this interface. -- Josh
