diff mbox

[v3,5/6] libxl: print message how to recover from xl cpupool-cpu-remove errors

Message ID 1457023730-10997-6-git-send-email-jgross@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jürgen Groß March 3, 2016, 4:48 p.m. UTC
An error occurring when calling "xl cpupool-cpu-remove" might leave
the system in a state where a cpu is neither completely free nor in
a cpupool. This can easily be repaired by adding the cpu via
"xl cpupool-cpu-add" to the cpupool where it was removed from before.
Print a message telling this the user in case of an error.

Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---
 tools/libxl/xl_cmdimpl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Dario Faggioli March 8, 2016, 1:18 p.m. UTC | #1
On Thu, 2016-03-03 at 17:48 +0100, Juergen Gross wrote:
> An error occurring when calling "xl cpupool-cpu-remove" might leave
> the system in a state where a cpu is neither completely free nor in
> a cpupool. This can easily be repaired by adding the cpu via
> "xl cpupool-cpu-add" to the cpupool where it was removed from before.
> Print a message telling this the user in case of an error.
> 
> Cc: Ian Jackson <ian.jackson@eu.citrix.com>
> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> Cc: Wei Liu <wei.liu2@citrix.com>
> Signed-off-by: Juergen Gross <jgross@suse.com>
>
Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com>

Regards,
Dario
Wei Liu March 8, 2016, 3:58 p.m. UTC | #2
On Thu, Mar 03, 2016 at 05:48:49PM +0100, Juergen Gross wrote:
> An error occurring when calling "xl cpupool-cpu-remove" might leave
> the system in a state where a cpu is neither completely free nor in
> a cpupool. This can easily be repaired by adding the cpu via
> "xl cpupool-cpu-add" to the cpupool where it was removed from before.
> Print a message telling this the user in case of an error.
> 
> Cc: Ian Jackson <ian.jackson@eu.citrix.com>
> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> Cc: Wei Liu <wei.liu2@citrix.com>
> Signed-off-by: Juergen Gross <jgross@suse.com>

Acked-by: Wei Liu <wei.liu2@citrix.com>

> ---
>  tools/libxl/xl_cmdimpl.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
> index 990d3c9..411473d 100644
> --- a/tools/libxl/xl_cmdimpl.c
> +++ b/tools/libxl/xl_cmdimpl.c
> @@ -7716,8 +7716,10 @@ int main_cpupoolcpuremove(int argc, char **argv)
>          goto out;
>      }
>  
> -    if (libxl_cpupool_cpuremove_cpumap(ctx, poolid, &cpumap))
> -        fprintf(stderr, "some cpus may not have been removed from %s\n", pool);
> +    if (libxl_cpupool_cpuremove_cpumap(ctx, poolid, &cpumap)) {
> +        fprintf(stderr, "Some cpus may have not or only partially been removed from '%s'.\n", pool);
> +        fprintf(stderr, "If a cpu can't be added to another cpupool, add it to '%s' again and retry.\n", pool);
> +    }
>  
>      rc = EXIT_SUCCESS;
>  
> -- 
> 2.6.2
>
diff mbox

Patch

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 990d3c9..411473d 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -7716,8 +7716,10 @@  int main_cpupoolcpuremove(int argc, char **argv)
         goto out;
     }
 
-    if (libxl_cpupool_cpuremove_cpumap(ctx, poolid, &cpumap))
-        fprintf(stderr, "some cpus may not have been removed from %s\n", pool);
+    if (libxl_cpupool_cpuremove_cpumap(ctx, poolid, &cpumap)) {
+        fprintf(stderr, "Some cpus may have not or only partially been removed from '%s'.\n", pool);
+        fprintf(stderr, "If a cpu can't be added to another cpupool, add it to '%s' again and retry.\n", pool);
+    }
 
     rc = EXIT_SUCCESS;