From: Josh Poimboeuf <jpoimboe@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, live-patching@vger.kernel.org,
bpf@vger.kernel.org,
Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com>,
Petr Mladek <pmladek@suse.com>, Song Liu <song@kernel.org>,
Raja Khan <raja.khan@crowdstrike.com>,
Miroslav Benes <mbenes@suse.cz>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 0/2] bpf, x86/unwind/orc: Support reliable unwinding through BPF stack frames
Date: Tue, 2 Dec 2025 10:19:17 -0800 [thread overview]
Message-ID: <cover.1764699074.git.jpoimboe@kernel.org> (raw)
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(-)
--
2.51.1
next reply other threads:[~2025-12-02 18:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-02 18:19 Josh Poimboeuf [this message]
2025-12-02 18:19 ` [PATCH 1/2] bpf: Add bpf_has_frame_pointer() Josh Poimboeuf
2025-12-02 18:53 ` Song Liu
2025-12-02 23:10 ` Josh Poimboeuf
2025-12-02 18:19 ` [PATCH 2/2] x86/unwind/orc: Support reliable unwinding through BPF stack frames Josh Poimboeuf
2025-12-02 18:59 ` Song Liu
2025-12-02 20:56 ` [External] [PATCH 0/2] bpf, " Andrey Grodzovsky
2025-12-02 22:07 ` Josh Poimboeuf
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