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Re: [Xen-devel] [PATCH for-4.7 1/2] hotplug: Fix xendomains lock path for RHEL-based systems

On Wed, May 11, 2016 at 12:14 PM, George Dunlap
<george.dunlap@xxxxxxxxxx> wrote:
> Commit c996572 changed the LOCKFILE path from a check between two
> hardcoded paths (/var/lock/subsys/ or /var/lock) to using the
> XEN_LOCK_DIR variable designated at configure time.  Since
> XEN_LOCK_DIR doesn't (and shouldn't) have the 'subsys' postfix, this
> effectively moves all the lock files by default to /var/lock instead.
> Unfortunately, this breaks xendomains on RedHat-based SYSV init
> systems.  RedHat-based SYSV init systems try to only call "${SERVICE}
> shutdown" on systems which actually have an actively running
> component; and they use the existence of /var/lock/subsys/${SERVICE}
> to determine which systems are running.
> Changing XEN_LOCK_DIR to /var/lock/subsys is not suitable, as only
> system services like xendomains should create lockfiles there; other
> locks (such as the console locks) should be created in /var/lock
> instead.
> Instead, re-instate the check for the subsys/ subdirectory of the lock
> directory in the xendomains script.
> Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxx>

This should be backported to 4.6.


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