linux-kernel - Re: [PATCH V2 0/5] Several fixes for group flag and counters-snapshotting

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: <20250424142528.GD1166@noisy.programming.kicks-ass.net>
Date: Thu, 24 Apr 2025 16:25:28 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: kan.liang@...ux.intel.com
Cc: mingo@...hat.com, acme@...nel.org, namhyung@...nel.org,
	irogers@...gle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 0/5] Several fixes for group flag and
 counters-snapshotting

On Thu, Apr 24, 2025 at 06:47:13AM -0700, kan.liang@...ux.intel.com wrote:
> From: Kan Liang <kan.liang@...ux.intel.com>
> 
> The patch series includes several fixes for the new Intel features.
> 
> The first 4 patches are to fix the group flag issue which impacts the
> branch counters, PEBS counters-snapshotting and ACR.
> The V1 can be found at
> https://lore.kernel.org/lkml/20250423221015.268949-1-kan.liang@linux.intel.com/
> 
> The last patch is to fix an issue of counters-snapshotting.
> The V1 can be found at
> https://lore.kernel.org/lkml/20250204210514.4089680-1-kan.liang@linux.intel.com/
> 
> Kan Liang (5):
>   perf/x86/intel: Only check the group flag for X86 leader
>   perf/x86/intel: Check the X86 leader for pebs_counter_event_group
>   perf/x86/intel: Check the X86 leader for ACR group
>   perf/x86: Optimize the is_x86_event
>   perf/x86/intel/ds: Fix counter backwards of non-precise events
>     counters-snapshotting

It didn't apply cleanly, but I stomped on it and pushed out new
perf/urgent and perf/core branches that contain these patches. Hopefully
I didn't mess it up ;-)