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Date: Fri, 07 Dec 2007 11:48:30 -0800 From: Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU> To: Ingo Molnar <mingo@...e.hu> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com>, Len Brown <lenb@...nel.org>, Venki Pallipadi <venkatesh.pallipadi@...el.com> Subject: Re: [git pull] x86/hrtimer/acpi fixes On Fri, 2007-12-07 at 11:29 -0800, Fernando Lopez-Lezcano wrote: > On Fri, 2007-12-07 at 19:59 +0100, Ingo Molnar wrote: > > * Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU> wrote: > > > > > Ingo, I was about to post about timer problems in 2.6.23.9+rt12 when I > > > saw this. Would this be related / should I test / will this solve > > > everything? :-) > > > > > > What I'm seeing is jack "delays" that go away if I boot with > > > "idle=poll", just like it was happening a long time ago. Smells like > > > 'time of day' glitches when the process switches cpus (this is on a > > > dual core intel laptop). > > > > does it go away with hpet=disable as well? If yes then there could be a > > relation. If not then it's something else and we need to debug it. > > Nope, it doesn't still getting "delay" and "xrun" messages galore. Attached: configuration and dmesg output booting with idle=poll, reconfirmed that that makes the delay and xrun messages go away. -- Fernando View attachment "dmesg.2" of type "text/plain" (27146 bytes) View attachment "config-2.6.23.9-1.rt12.2.fc7.ccrmart" of type "text/plain" (80369 bytes)
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