[Xen-bugs] [Bug 368] "vcpus" not supported in x86-64

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=368


james@xxxxxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Additional Comments From james@xxxxxxxxxxxxx  2005-12-04 14:31 -------
Believed fixed by: please reopen if still seeing

changeset: 7597:5ed53e973b833850eb2fcba16a361988ea133661
manifest: 7592:8d8125a0c94afa4e51332da251c65b5f6a9b5d68
user: kaf24@xxxxxxxxxxxxxxxxxxxx
date: Tue Nov 1 23:08:01 2005 +0100
files: linux-2.6-xen-sparse/arch/xen/kernel/smpboot.c
description:
Changeset 7419 introduced a check for DOM0 before setting a bit in the
cpu_present map. This prevents domU SMP kernels without HOTPLUG_CPU
support from booting. Secondary cpus need to be present and online
before init/main.c:do_basic_setup() calls init_workqueues() (which
initializes per-cpu workqueues).

Without this patch, non HOTPLUG_CPU enabled kernels hang when flushing
cpu workqueues as the spinlock in the structure is never initialized (it
has a default value of zero which means the lock has been acquired on
x86).

Signed-off-by: Ryan Harper <ryanh@xxxxxxxxxx>
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>


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