linux-kernel - Re: [GIT PULL] perf-tools changes for v6.13

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z0ZhDHXxHKoE2Nrl@google.com>
Date: Tue, 26 Nov 2024 16:00:12 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org
Subject: Re: [GIT PULL] perf-tools changes for v6.13

Hello,

On Tue, Nov 26, 2024 at 03:33:10PM -0800, Linus Torvalds wrote:
> On Sun, 24 Nov 2024 at 23:17, Namhyung Kim <namhyung@...nel.org> wrote:
> >
> > Please consider pulling the following changes in perf tools for v6.13.
> 
> Hmm. Has the default search path for the vmlinux image changed?

I don't think so.

> 
> Doing profiling with this, I get
> 
>     openat(AT_FDCWD, "vmlinux", O_RDONLY)   = 5
> 
> which is very very wrong for my kernel build - it basically picks up
> the vmlinux image from the build directory, which has absolutely
> *nothign* to do with the image that is being run at the moment.

Sure, at least it should match the build-id before use.

> 
> So now I need to point "perf report" at the actual image, which I
> didn't need to do before.

Ok, I'll try to reproduce it and take a look.

Thanks,
Namhyung