Re: [PATCH 0/6 v1] perf test attr: Fix the re-enabled test

[Arnaldo Carvalho de Melo]

On Tue, Oct 06, 2026 at 05:00:26PM -0700, Namhyung Kim wrote:
> On Tue, Oct 06, 2026 at 06:13:03PM +0200, Arnaldo Carvalho de Melo wrote:
> > From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
 > The test passes with 'perf test -vv attribute' on x86_64.  The AMD
> > encodings come from the amd_pmu_event_map tables in
> > arch/x86/events/amd/core.c.
> 
> On my machine, the current tmp.perf-tools-next which contains these
> changes fails like this.
> 
>   $ tools/perf/perf test -v 82
>   ---- start ----
>   test child forked, pid 931585
>   /home/namhyung/project/linux/tools/perf/tests/shell/attr.sh: line 20: python: command not found
>   ---- end(-1) ----
>    82: Perf attribute expectations test                                                 : FAILED!
>   
>   === Test Summary ===
>   Passed main tests : 0
>   Passed subtests   : 0
>   Skipped tests     : 0
>   Failed tests      : 1
>   List of failed tests:
>      82: Perf attribute expectations test
> 
> The below patch fixes the problem.

still without your patch:

root@number:~# perf test attribute
 82: Perf attribute expectations t: Ok

 === Test Summary ===
 Passed main tests : 1
 Passed subtests   : 0
 Skipped tests     : 0
 Failed tests      : 0
 root@number:~# grep "model name" -m1 /proc/cpuinfo
 model name      : AMD Ryzen 9 9950X3D 16-Core Processor
 root@number:~# uname -a
 Linux number 7.2.7-200.fc44.x86_64 #1 SMP PREEMPT_DYNAMIC Mon Sep 21
 18:25:57 UTC 2026 x86_64 GNU/Linux
 root@number:~#

 I reproduced the build failure in an ARM64 Debian Trixie machine,
 applying your patch to try again.

 - Arnaldo