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Re: [libvirt] [Xen-devel] dom0 kenrel crashes for openstack + libvirt + libxl



On 11/21/2014 07:32 AM, Ian Campbell wrote:
>From 9f2d8da8264b426f54b92378e9e00973694193d4 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian campbell citrix com>
Date: Fri, 21 Nov 2014 14:00:38 +0000
Subject: [PATCH] libxl: Allow libxl to find pygrub binary.

Specifying an explicit path to pygrub (e.g. BINDIR "/pygrub") only works if
Xen and libvirt happen to be installed to the same prefix. A more flexible
approach is to simply specify "pygrub" which will cause libxl to use the
correct path which it knows (since it is built with the same prefix as pygrub).

This is particular problematic in the Debian packaging, since the Debian Xen
package relocates pygrub into a libexec dir, however I think this change makes
sense upstream.

Yep agreed. I forgot about making this change a few weeks back after seeing the following in the logs when not explicitly specifying a bootloader

libxl: warning: libxl_bootloader.c:413:bootloader_disk_attached_cb: bootloader='/usr/bin/pygrub' is deprecated; use bootloader='pygrub' instead


Signed-off-by: Ian Campbell <ian campbell citrix com>
---
  .gnulib                |    2 +-
  src/libxl/libxl_conf.h |    2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.gnulib b/.gnulib
index 9565c3b..2d28074 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit 9565c3be73eb6d76b7b42a21d68d2e00a62abb6d
+Subproject commit 2d280742a9e30088aa169f53353765d5daafe4c0

ACK and pushed after removing this hunk.

Regards,
Jim

diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h
index 25f77ea..d7a3971 100644
--- a/src/libxl/libxl_conf.h
+++ b/src/libxl/libxl_conf.h
@@ -53,7 +53,7 @@
  # define LIBXL_LIB_DIR LOCALSTATEDIR "/lib/libvirt/libxl"
  # define LIBXL_SAVE_DIR LIBXL_LIB_DIR "/save"
  # define LIBXL_DUMP_DIR LIBXL_LIB_DIR "/dump"
-# define LIBXL_BOOTLOADER_PATH BINDIR "/pygrub"
+# define LIBXL_BOOTLOADER_PATH "pygrub"
/* libxl interface for setting VCPU affinity changed in 4.5. In fact, a new
   * parameter has been added, representative of 'VCPU soft affinity'. If one


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