From: Mike Galbraith <efault@gmx.de>
To: "Björn Steinbrink" <B.Steinbrink@gmx.de>
Cc: danial_thom@yahoo.com, linux-kernel@vger.kernel.org
Subject: Re: Measuring tools - top and interrupts
Date: Sun, 25 Jun 2006 07:06:33 +0200 [thread overview]
Message-ID: <1151211993.8519.6.camel@Homer.TheSimpsons.net> (raw)
In-Reply-To: <20060624192523.GA3231@atjola.homenet>
On Sat, 2006-06-24 at 21:25 +0200, Björn Steinbrink wrote:
> On 2006.06.24 18:23:12 +0200, Mike Galbraith wrote:
> >
> > let's see. Yeah, confirmed.
>
> OK, it also depends on IO APIC being enabled and active, ie. noapic on
> the kernel command line will fix it as well as disabling
> CONFIG_X86_IO_APIC. That doesn't help me at all to understand why it
> happens though.
Ditto.
> The only difference with IO APIC disabled seems to be that the irq
> doesn't get ACKed before update_process_times() gets called.
> And your "fix" makes it being called outside of the xtime_lock spinlock
> and with a slightly different stack usage AFAICT.
(it's still under the xtime lock)
> But none of these should make a difference, right?
Not that I can see, but then it's pretty dark down here. Anybody got a
flashlight I can borrow? ;-)
-Mike
next prev parent reply other threads:[~2006-06-25 5:02 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-22 15:26 Measuring tools - top and interrupts Danial Thom
2006-06-22 16:19 ` Randy.Dunlap
2006-06-22 17:16 ` Bernd Eckenfels
2006-06-22 16:21 ` Erik Mouw
2006-06-22 16:58 ` Danial Thom
2006-06-22 17:31 ` Erik Mouw
2006-06-22 23:37 ` Danial Thom
2006-06-23 8:32 ` Mike Galbraith
2006-06-23 20:14 ` Danial Thom
2006-06-23 22:51 ` Mike Galbraith
2006-06-23 9:02 ` Erik Mouw
2006-06-23 17:13 ` Alistair John Strachan
2006-06-23 18:16 ` Danial Thom
2006-06-23 5:34 ` sena seneviratne
2006-06-23 20:42 ` Danial Thom
2006-06-22 17:57 ` Francois Romieu
2006-06-22 22:47 ` Danial Thom
2006-06-22 23:53 ` Francois Romieu
2006-06-23 20:34 ` Danial Thom
2006-06-23 21:19 ` Francois Romieu
2006-06-24 2:07 ` Björn Steinbrink
2006-06-24 4:39 ` sena seneviratne
2006-06-24 5:59 ` Mike Galbraith
2006-06-24 6:26 ` Mike Galbraith
2006-06-24 9:21 ` Björn Steinbrink
2006-06-24 9:51 ` Mike Galbraith
2006-06-24 11:41 ` Mike Galbraith
2006-06-24 15:40 ` Björn Steinbrink
2006-06-24 16:23 ` Mike Galbraith
2006-06-24 19:25 ` Björn Steinbrink
2006-06-25 5:06 ` Mike Galbraith [this message]
2006-06-25 11:12 ` Björn Steinbrink
2006-06-25 14:24 ` [PATCH] i386: Fix softirq accounting with 4K stacks Björn Steinbrink
2006-06-25 15:15 ` Arjan van de Ven
2006-06-25 17:44 ` Mike Galbraith
2006-06-25 17:43 ` Arjan van de Ven
2006-06-25 18:42 ` Björn Steinbrink
2006-06-26 2:23 ` Mike Galbraith
2006-06-26 3:05 ` Mike Galbraith
2006-06-26 17:58 ` Björn Steinbrink
2006-06-27 10:09 ` Mike Galbraith
2006-06-25 20:45 ` Measuring tools - top and interrupts Danial Thom
2006-06-26 2:33 ` Mike Galbraith
2006-06-30 13:41 ` Danial Thom
2006-06-30 18:03 ` Mike Galbraith
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