Re: [PATCH v12 00/14] unwind_user: x86: Deferred unwinding infrastructure

From
Kees Cook <kees@kernel.org>
Date
2025-07-01 22:49:23
Also in
bpf, lkml
Reply to
Steven Rostedt, 2025-07-01
On Mon, Jun 30, 2025 at 10:45:39PM -0400, Steven Rostedt wrote:
On Mon, 30 Jun 2025 19:06:12 -0700
Linus Torvalds [off-list ref] wrote:
quoted
On Mon, 30 Jun 2025 at 17:54, Steven Rostedt [off-list ref] wrote:
quoted
This is the first patch series of a set that will make it possible to be able
to use SFrames[1] in the Linux kernel. A quick recap of the motivation for
doing this.  
You have a '[1]' to indicate there's a link to what SFrames are.
[...]
  [1] https://sourceware.org/binutils/wiki/sframe
Okay, I've read the cover letter and this wiki page, but I am dense: why
does the _kernel_ want to do this? Shouldn't it only be userspace that
cares about userspace unwinding? I don't use perf, ftrace, and ebpf
enough to make this obvious to me, I guess. ;)

-- 
Kees Cook
Thread (51 messages) 51 messages, 6 authors, last reply 2025-07-07
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