Thank you for the fix, Lucas.

On Sat, Jan 4, 2025 at 5:54 AM <devel-requ...@lists.crash-utility.osci.io>
wrote:

> Date: Fri,  3 Jan 2025 16:52:18 -0500
> From: soak...@redhat.com
> Subject: [Crash-utility] [PATCH] Fix misleading CPU count in
>         display_sys_stats()
> To: devel@lists.crash-utility.osci.io
> Cc: Lucas Oakley <soak...@redhat.com>
> Message-ID: <20250103215218.712496-1-soak...@redhat.com>
> Content-Type: text/plain; charset="US-ASCII"; x-default=true
>
> From: Lucas Oakley <soak...@redhat.com>
>
> This simplication fixes the total CPU count being reported
> incorrectly in ppc64le and s390x systems when some number of
> CPUs have been offlined, as the kt->cpus value is adjusted.
> This adds the word "OFFLINE" to the 'sys' output for s390x
> and ppc64le, like exists for x86_64 and aarch64 when examining
> systems with offlined CPUs.
>
> Without patch:
>
>   KERNEL: /debug/4.18.0-477.10.1.el8_8.s390x/vmlinux
> DUMPFILE: /proc/kcore
>     CPUS: 1
>
> With patch:
>
>   KERNEL: /debug/4.18.0-477.10.1.el8_8.s390x/vmlinux
> DUMPFILE: /proc/kcore
>     CPUS: 2 [OFFLINE: 1]
>
> Signed-off-by: Lucas Oakley <soak...@redhat.com>
> ---
>  kernel.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/kernel.c b/kernel.c
> index 8c2e0ca..3e190f1 100644
> --- a/kernel.c
> +++ b/kernel.c
> @@ -5816,15 +5816,13 @@ display_sys_stats(void)
>                                 pc->kvmdump_mapfile);
>         }
>
> -       if (machine_type("PPC64"))
> -               fprintf(fp, "        CPUS: %d\n", get_cpus_to_display());
> -       else {
> -               fprintf(fp, "        CPUS: %d", kt->cpus);
> -               if (kt->cpus - get_cpus_to_display())
> -                       fprintf(fp, " [OFFLINE: %d]",
> -                               kt->cpus - get_cpus_to_display());
> -               fprintf(fp, "\n");
> -       }
> +        int number_cpus_to_display = get_cpus_to_display();
> +        int number_cpus_present = get_cpus_present();
> +        fprintf(fp, "        CPUS: %d", number_cpus_present);
> +        if (number_cpus_present != number_cpus_to_display)
> +                fprintf(fp, " [OFFLINE: %d]",
> +                    number_cpus_present - number_cpus_to_display);
> +        fprintf(fp, "\n");
>
>         if (ACTIVE())
>                 get_xtime(&kt->date);
>

What do you think about the following changes?

diff --git a/kernel.c b/kernel.c
index 8c2e0ca50482..2f451cc6056b 100644
--- a/kernel.c
+++ b/kernel.c
@@ -5816,15 +5816,16 @@ display_sys_stats(void)
                                pc->kvmdump_mapfile);
        }

-       if (machine_type("PPC64"))
-               fprintf(fp, "        CPUS: %d\n", get_cpus_to_display());
-       else {
-               fprintf(fp, "        CPUS: %d", kt->cpus);
-               if (kt->cpus - get_cpus_to_display())
-                       fprintf(fp, " [OFFLINE: %d]",
-                               kt->cpus - get_cpus_to_display());
-               fprintf(fp, "\n");
-       }
+        int number_cpus_to_display = get_cpus_to_display();
+        int number_cpus_present = get_cpus_present();
+        if (!number_cpus_present)
+            number_cpus_present = kt->cpus;
+
+        fprintf(fp, "        CPUS: %d", number_cpus_present);
+        if (number_cpus_present > number_cpus_to_display)
+                fprintf(fp, " [OFFLINE: %d]",
+                    number_cpus_present - number_cpus_to_display);
+        fprintf(fp, "\n");

        if (ACTIVE())
                get_xtime(&kt->date);



Thanks
Lianbo

-- 
> 2.47.1
>
--
Crash-utility mailing list -- devel@lists.crash-utility.osci.io
To unsubscribe send an email to devel-le...@lists.crash-utility.osci.io
https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/
Contribution Guidelines: https://github.com/crash-utility/crash/wiki

Reply via email to