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Message-ID: <20080706073726.72074a3c@infradead.org> Date: Sun, 6 Jul 2008 07:37:26 -0700 From: Arjan van de Ven <arjan@...radead.org> To: Heikki Orsila <shdl@...alwe.fi> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: 2.6.26-rc9 load problem On Sun, 6 Jul 2008 17:25:16 +0300 Heikki Orsila <shdl@...alwe.fi> wrote: > Testing 2.6.26-rc9. Doing: > > dd if=/dev/hda of=/dev/null bs=4096 > > causes the operating system to feel very unresponsible. > Even the key repeat interval at tty1 is unpredictable. Hi, do you have an idea which version you tried last which didn't show this behavior? Also, can you try running latencytop to see if that shows where the delays are? (if rc8 was fine, 18ce3751ccd488c78d3827e9f6bf54e6322676fb is the most likely suspect patch.. http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=18ce3751ccd488c78d3827e9f6bf54e6322676fb can you see if reverting this helps? -- If you want to reach me at my work email, use arjan@...ux.intel. For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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