From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Anzinger Date: Wed, 13 Oct 2004 17:25:09 +0000 Subject: Re: Periodic posix timer support broke between 2.6.9-rc1 and 2.6.9-rc1-bk17 Message-Id: <416D64F5.4000307@mvista.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Christoph Lameter wrote: > On Tue, 12 Oct 2004, George Anzinger wrote: > > >>Christoph Lameter wrote: >> >>>I ran some test programs and discovered that the periodic timer support >>>is broken. The timer is triggered once and then never again. Single shot >>>timers work fine. 2.6.9-rc1 is fine. The first kernel that I tested where >>>I noticed the breakage was 2.6.9-rc1-bk17. 2.6.9-rc2 and following all >>>cannot do periodic timer signals. >>> >>>I looked through the changelog but I cannot see anything that would cause >>>the problem. Roland's patch surely could not have done this. >>> >>>Will try to track this down further, time permitting... >> >>The most likely thing would be failure to do the call back from the signal >>delivery code. > > > The problem is IA64 arch specific. Works fine on i386. And I repeat: The most likely thing would be failure to do the call back from the signal delivery code. > -- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml