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From: Andi Kleen <ak@suse.de>
To: "Bill Rugolsky Jr." <brugolsky@telemetry-investments.com>
Cc: Jason Baron <jbaron@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: AMD64 X2 lost ticks on PM timer
Date: Wed, 1 Mar 2006 19:29:58 +0100	[thread overview]
Message-ID: <200603011929.59307.ak@suse.de> (raw)
In-Reply-To: <20060301180714.GD20092@ti64.telemetry-investments.com>

On Wednesday 01 March 2006 19:07, Bill Rugolsky Jr. wrote:

> Mar  1 11:39:27 ti94 kernel: time.c: Lost 1 timer tick(s)! rip __do_softirq+0x55/0xd4)

Yes, I bet something forgets to turn on interrupts again and it's picked up by
(and blamed on) the next guy who does an unconditional sti, which happens to be __do_sofitrq
or idle.


> Time to instrument sata_nv, I suppose.  Many thanks for helping to narrow this
> down.

Sprinkle WARN_ON(in_interrupt()) all over the parts that shouldn't have interrupts 
off.

-Andi

  reply	other threads:[~2006-03-01 18:30 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-27 21:22 AMD64 X2 lost ticks on PM timer bubshait
2006-02-27 22:21 ` Bill Rugolsky Jr.
2006-02-27 22:47   ` Jason Baron
2006-02-28  7:41     ` Abdulla Bubshait
2006-02-28 22:00       ` Bill Rugolsky Jr.
2006-02-28 23:53         ` Andi Kleen
2006-03-01 14:46           ` Bill Rugolsky Jr.
2006-03-01 14:56             ` Andi Kleen
2006-03-01 15:43               ` Bill Rugolsky Jr.
2006-03-01 15:47                 ` Andi Kleen
2006-03-01 18:07                   ` Bill Rugolsky Jr.
2006-03-01 18:29                     ` Andi Kleen [this message]
2006-03-01 19:16                       ` Lee Revell
2006-03-03 19:18                         ` Bill Rugolsky Jr.
2006-03-03 21:26                           ` Lee Revell
2006-03-03 22:09                             ` Jeff Garzik
2006-03-03 23:43                               ` Bill Rugolsky Jr.
2006-03-03 23:46                                 ` Jeff Garzik
2006-03-03 23:49                                   ` Lee Revell
2006-03-04  0:08                                   ` Andi Kleen
2006-03-04  0:07                                 ` Andi Kleen
     [not found]                                   ` <20060315213638.GA17817@ti64.telemetry-investments.com>
2006-03-15 21:45                                     ` libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer] Lee Revell
2006-03-15 21:58                                       ` Ingo Molnar
2006-03-15 22:00                                         ` Ingo Molnar
2006-03-15 22:25                                           ` Jeff Garzik
2006-03-16 15:13                                           ` Alan Cox
2006-03-16 16:57                                             ` Bill Rugolsky Jr.
2006-03-22 16:09                                               ` Andi Kleen
2006-03-22 18:39                                                 ` Bill Rugolsky Jr.
2006-03-22 23:07                                                 ` Bill Rugolsky Jr.
2006-03-15 22:22                                         ` Jeff Garzik
2006-03-15 22:24                                           ` Ingo Molnar
2006-03-15 22:36                                             ` Bill Rugolsky Jr.
2006-03-15 22:46                                               ` Ingo Molnar
2006-03-15 22:48                                               ` Jeff Garzik
2006-03-15 23:31                                                 ` Lee Revell
2006-03-15 21:50                                     ` Ingo Molnar
2006-03-15 22:11                                       ` Ingo Molnar
2006-03-15 22:33                                         ` Jeff Garzik
2006-03-15 22:44                                           ` Ingo Molnar
2006-03-15 22:50                                             ` Jeff Garzik
2006-03-15 23:14                                               ` Bill Rugolsky Jr.
2006-03-15 23:44                                                 ` Lee Revell
     [not found]                                                   ` <20060316002133.GE17817@ti64.telemetry-investments.com>
2006-03-16  0:48                                                     ` Long latencies with MD RAID 1 [was Re: libata/sata_nv latency on NVIDIA CK804 ] Lee Revell
2006-03-16  3:15                                                 ` libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer] Bill Rugolsky Jr.
2006-03-16  4:20                                                   ` Lee Revell
2006-03-16  9:18                                                     ` Ingo Molnar
2006-03-16 14:42                                                     ` Gabor Gombas
2006-03-16  0:01                                               ` Lee Revell
2006-03-16  0:14                                                 ` Jeff Garzik
2006-03-15 22:30                                       ` Jeff Garzik
2006-03-15 22:36                                         ` Ingo Molnar
2006-03-15 22:04                                     ` [patch] latency-tracing-v2.6.16.patch Ingo Molnar
2006-03-15 22:32                                       ` Bill Rugolsky Jr.
2006-03-16  9:18                                         ` Ingo Molnar
2006-03-04 12:06                                 ` AMD64 X2 lost ticks on PM timer Martin Schlemmer
2006-03-05  7:07                                   ` Alexander Samad
2006-03-02 15:47                 ` Gabor Gombas
2006-02-28 21:17     ` Abdulla Bubshait
  -- strict thread matches above, loose matches on Subject: below --
2006-03-06 17:37 [RFC] Encrypting file system Michael Halcrow
2006-03-06 21:36 ` AMD64 X2 lost ticks on PM timer Timo Schroeter

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