Fix livepatch stalls which may be seen when a task is blocked with BPF JIT on its kernel stack.
Changes since v1 (https://lore.kernel.org/[email protected]): - fix NULL ptr deref in __arch_prepare_bpf_trampoline() 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 | 12 +++++++++++ include/linux/bpf.h | 3 +++ kernel/bpf/core.c | 16 +++++++++++++++ 4 files changed, 58 insertions(+), 12 deletions(-) -- 2.51.1
