Re: [Xen-devel] [Patch] support cpupool for xl create

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 05/07/2010 01:14 AM, Juergen Gross wrote:
> Hi,
>
> attached patch supports cpupool specification for xl create.

This crashes for me:

(gdb) run create /etc/xen/f13pv64 
Starting program: /usr/sbin/xl create /etc/xen/f13pv64
[Thread debugging using libthread_db enabled]
Parsing config file /etc/xen/f13pv64

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff79cd805 in libxl_domain_make (ctx=0x60f8a0, info=0x7fffffffe0b0, 
    domid=0x60f890) at libxl.c:172
172         xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/pool_name", vm_path), 
info->poolname, strlen(info->poolname));
(gdb) p info->poolname
$2 = 0x0

Adding

diff -r bbf009817ffb tools/libxl/libxl.c
--- a/tools/libxl/libxl.c       Fri May 07 19:22:28 2010 +0100
+++ b/tools/libxl/libxl.c       Fri May 07 14:57:00 2010 -0700
@@ -169,7 +169,8 @@
 
     xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/uuid", vm_path), uuid_string, 
strlen(uuid_string));
     xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/name", vm_path), info->name, 
strlen(info->name));
-    xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/pool_name", vm_path), 
info->poolname, strlen(info->poolname));
+    if (info->poolname)
+        xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/pool_name", vm_path), 
info->poolname, strlen(info->poolname));
 
     libxl_xs_writev(ctx, t, dom_path, info->xsdata);
     libxl_xs_writev(ctx, t, libxl_sprintf(ctx, "%s/platform", dom_path), 
info->platformdata);

fixes it for me.

        J


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