From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: [PATCH] xen: explicitly create/destroy stop_machine workqueues outside suspend/resume region. Date: Tue, 01 Dec 2009 14:50:25 -0800 Message-ID: <4B159DB1.1050709@goop.org> References: <1259668035-8552-1-git-send-email-ian.campbell@citrix.com> <1259668035-8552-2-git-send-email-ian.campbell@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1259668035-8552-2-git-send-email-ian.campbell@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ian Campbell Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 12/01/09 03:47, Ian Campbell wrote: > I have observed cases where the implicit stop_machine_destroy() done by > stop_machine() hangs while destroying the workqueues, specifically in > kthread_stop(). This seems to be because timer ticks are not restarted > until after stop_machine() returns. > Thanks for these - applied. J