From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Auke Kok <auke-jan.h.kok@intel.com>,
Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-pm@lists.osdl.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Adrian Bunk <bunk@stusta.de>, Pavel Machek <pavel@ucw.cz>,
Jens Axboe <jens.axboe@oracle.com>,
"Michael S. Tsirkin" <mst@mellanox.co.il>,
Andrew Morton <akpm@linux-foundation.org>,
Jeff Garzik <jgarzik@pobox.com>
Subject: Re: SATA resume slowness, e1000 MSI warning
Date: Tue, 06 Mar 2007 17:26:41 +0100 [thread overview]
Message-ID: <1173198401.24738.340.camel@localhost.localdomain> (raw)
In-Reply-To: <20070305101120.GA23032@elte.hu>
On Mon, 2007-03-05 at 11:11 +0100, Ingo Molnar wrote:
> the spin-up takes a few seconds here under suspend/resume simulation:
>
> | ata1: waiting for device to spin up (7 secs)
> | Restarting tasks ... done.
>
> [5-10 seconds pass]
>
> | ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> | ata1.00: configured for UDMA/100
> | SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
> | sda: Write Protect is off
> | sda: Mode Sense: 00 3a 00 00
> | SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>
> with real resume it takes even longer time - but i dont see where the
> delays come from in that case - i suspect it's SATA.
SATA has another nice feature. Somehow there is an interrupt pending on
the SATA controller, which comes in somewhere in the middle of resume.
If it happens before the SATA code resumed, the SATA code ignores the
interrupt and the interrupt is disabled due to "nobody cared", which in
turn prevents SATA to ever become functional again.
Any idea on that one ?
tglx
next prev parent reply other threads:[~2007-03-06 16:26 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.64.0702202043280.4043@woody.linux-foundation.org>
2007-02-25 17:52 ` 2.6.21-rc1: known regressions (part 1) Adrian Bunk
2007-02-28 18:16 ` Karasyov, Konstantin A
2007-02-25 17:55 ` 2.6.21-rc1: known regressions (part 2) Adrian Bunk
2007-02-27 10:02 ` Jens Axboe
2007-02-27 10:21 ` Pavel Machek
2007-02-27 10:30 ` Jens Axboe
2007-02-27 10:34 ` Ingo Molnar
2007-02-27 10:59 ` Jens Axboe
2007-02-27 11:15 ` Jens Axboe
2007-02-27 13:09 ` Jens Axboe
2007-03-01 9:34 ` Ingo Molnar
2007-03-01 10:41 ` Ingo Molnar
2007-03-01 14:52 ` Ingo Molnar
2007-03-01 16:12 ` Rafael J. Wysocki
2007-03-02 0:26 ` Linus Torvalds
2007-03-02 0:41 ` Linus Torvalds
2007-03-02 7:14 ` Ingo Molnar
2007-03-02 7:21 ` Ingo Molnar
2007-03-02 8:04 ` Ingo Molnar
2007-03-02 10:20 ` Ingo Molnar
2007-03-02 10:22 ` [patch] KVM: T60 resume fix Ingo Molnar
2007-03-02 11:39 ` Michael S. Tsirkin
2007-03-03 8:22 ` Avi Kivity
2007-03-03 8:21 ` Avi Kivity
2007-03-03 11:57 ` Andrew Morton
2007-03-03 12:07 ` Junio C Hamano
2007-03-05 8:22 ` Ingo Molnar
2007-03-05 8:50 ` Avi Kivity
2007-03-05 8:44 ` Ingo Molnar
2007-03-05 8:57 ` Ingo Molnar
2007-03-05 9:27 ` Avi Kivity
2007-03-05 10:05 ` Ingo Molnar
2007-03-05 10:33 ` Avi Kivity
2007-03-05 10:33 ` Ingo Molnar
2007-03-05 10:40 ` Michael S. Tsirkin
2007-03-05 12:54 ` Michael S. Tsirkin
2007-03-05 12:50 ` Ingo Molnar
2007-03-05 13:26 ` Michael S. Tsirkin
2007-03-05 13:32 ` Ingo Molnar
2007-03-05 10:23 ` Michael S. Tsirkin
2007-03-05 10:29 ` Ingo Molnar
2007-03-05 15:44 ` 2.6.21-rc1: known regressions (part 2) Michael S. Tsirkin
2007-03-05 16:14 ` Michael S. Tsirkin
2007-03-05 16:41 ` Ingo Molnar
2007-03-05 18:16 ` Jens Axboe
2007-03-01 23:36 ` Linus Torvalds
2007-03-02 10:07 ` Pavel Machek
2007-03-05 8:42 ` Michael S. Tsirkin
2007-03-05 10:11 ` SATA resume slowness, e1000 MSI warning Ingo Molnar
2007-03-06 5:30 ` Jeff Garzik
2007-03-06 6:35 ` Kok, Auke
2007-03-06 9:04 ` Ingo Molnar
2007-03-06 15:34 ` Kok, Auke
2007-03-07 4:15 ` Eric W. Biederman
2007-03-07 16:31 ` Kok, Auke
2007-03-07 16:45 ` Kok, Auke
2007-03-07 19:28 ` Eric W. Biederman
2007-03-08 2:53 ` Andrew Morton
2007-03-08 6:58 ` Eric W. Biederman
2007-03-08 9:55 ` Jeff Garzik
2007-03-08 17:27 ` Eric W. Biederman
2007-03-08 19:58 ` [PATCH 0/2] Repair pci_restore_state when used with device resets Eric W. Biederman
2007-03-08 20:04 ` [PATCH 1/2] msi: Safer state caching Eric W. Biederman
2007-03-08 20:06 ` [PATCH 2/2] pci: Repair pci_save/restore_state so we can restore one save many times Eric W. Biederman
2007-03-12 22:46 ` Kok, Auke
2007-03-08 20:08 ` [PATCH 0/2] Repair pci_restore_state when used with device resets Ingo Molnar
2007-03-08 20:26 ` Eric W. Biederman
2007-03-08 10:23 ` SATA resume slowness, e1000 MSI warning Michael S. Tsirkin
2007-03-11 11:11 ` Eric W. Biederman
2007-03-11 11:24 ` Michael S. Tsirkin
2007-03-11 17:37 ` Eric W. Biederman
2007-03-11 18:03 ` Michael S. Tsirkin
2007-03-11 18:27 ` Eric W. Biederman
2007-03-11 18:37 ` Michael S. Tsirkin
2007-03-11 19:50 ` Eric W. Biederman
2007-03-12 4:35 ` Michael S. Tsirkin
2007-04-16 19:56 ` Michael S. Tsirkin
2007-03-09 23:06 ` Kok, Auke
2007-03-10 3:41 ` Eric W. Biederman
2007-03-06 9:06 ` Ingo Molnar
2007-03-06 16:26 ` Thomas Gleixner [this message]
2007-03-06 16:52 ` Linus Torvalds
2007-03-06 17:09 ` Kok, Auke
2007-03-09 6:44 ` 2.6.21-rc1: known regressions (part 2) Pavel Machek
2007-03-05 15:34 ` Michael S. Tsirkin
2007-02-27 22:09 ` Adrian Bunk
2007-02-28 7:41 ` Jens Axboe
2007-02-26 22:01 ` 2.6.21-rc1: known regressions (v2) (part 1) Adrian Bunk
2007-02-27 4:09 ` Sergio Monteiro Basto
2007-02-27 12:50 ` S.Çağlar Onur
2007-02-27 13:25 ` Ismail Dönmez
2007-02-28 21:13 ` Michael S. Tsirkin
2007-02-28 21:27 ` Thomas Gleixner
2007-02-28 21:40 ` Michael S. Tsirkin
2007-03-01 3:45 ` Jeff Chua
2007-03-02 12:26 ` [linux-pm] " Pavel Machek
2007-03-03 11:17 ` Jens Axboe
2007-03-05 0:04 ` Adrian Bunk
2007-03-06 1:32 ` Jeff Chua
2007-03-06 12:03 ` Jeff Chua
2007-03-06 12:08 ` Michael S. Tsirkin
2007-03-06 12:12 ` Jeff Chua
2007-03-19 15:32 ` Pavel Machek
2007-03-19 21:23 ` Rafael J. Wysocki
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