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From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>,
	Adrian Bunk <bunk@stusta.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Jens Axboe <jens.axboe@oracle.com>,
	Jeff Chua <jeff.chua.linux@gmail.com>,
	pavel@suse.cz, linux-pm@lists.osdl.org, lenb@kernel.org,
	linux-acpi@vger.kernel.org, luming.yu@intel.com,
	Arkadiusz Miskiewicz <arekm@maven.pl>,
	Konstantin Karasyov <konstantin.a.karasyov@intel.com>,
	Greg KH <greg@kroah.com>,
	linux-usb-devel@lists.sourceforge.net,
	Thomas Meyer <thomas.mey@web.de>, Meelis Roos <mroos@linux.ee>,
	Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>,
	Janosch Machowinski <jmachowinski@gmx.de>,
	vladimir.p.lebedev@intel.com,
	Ash Milsted <thatistosayiseenem@gawab.com>,
	dmitry.torokhov@gmail.com, linux-input@atrey.karlin.mff.cuni.cz,
	"Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: [2/6] 2.6.21-rc2: known regressions
Date: Thu, 8 Mar 2007 20:25:54 +0100	[thread overview]
Message-ID: <20070308192554.GA2999@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.64.0703080954220.10832@woody.linux-foundation.org>


* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> > 2. First disk access after resume takes a couple of minutes
> >    (seemed instant with 2.6.20) during this time no new messages 
> >    show on console
> 
> Yeah, there is some problem with SATA resume. It would be beautiful if 
> the people who actually see this could narrow it down with bisection. 
> "It works for me" is clearly the case for many people, but not all.

Thomas found a new twist to this today: applying the patch below (which 
turns on ATA_DEBUG) made the SATA problem go away on his laptop. 
Michael, could you try this patch, does it change the behavior of your 
laptop in any way?

	Ingo

---
 include/linux/libata.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/include/linux/libata.h
===================================================================
--- linux.orig/include/linux/libata.h
+++ linux/include/linux/libata.h
@@ -51,7 +51,7 @@
  * compile-time options: to be removed as soon as all the drivers are
  * converted to the new debugging mechanism
  */
-#undef ATA_DEBUG		/* debugging output */
+#define ATA_DEBUG 1		/* debugging output */
 #undef ATA_VERBOSE_DEBUG	/* yet more debugging output */
 #undef ATA_IRQ_TRAP		/* define to ack screaming irqs */
 #undef ATA_NDEBUG		/* define to disable quick runtime checks */

  parent reply	other threads:[~2007-03-08 19:25 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.64.0702272105220.12485@woody.linux-foundation.org>
2007-03-05  1:50 ` [2/6] 2.6.21-rc2: known regressions Adrian Bunk
2007-03-07 11:09   ` Jeff Garzik
2007-03-07 16:10     ` Linus Torvalds
2007-03-08 12:03     ` Ash Milsted
2007-03-08 12:31   ` Michael S. Tsirkin
2007-03-08 15:11     ` Jeff Chua
2007-03-08 18:01     ` Linus Torvalds
2007-03-08 19:06       ` Ingo Molnar
2007-03-08 19:10         ` Ingo Molnar
2007-03-08 19:47         ` Michael S. Tsirkin
2007-03-08 20:10           ` Ingo Molnar
2007-03-08 19:25       ` Ingo Molnar [this message]
2007-03-08 23:07         ` Ingo Molnar
2007-03-08 23:12           ` Ingo Molnar
2007-03-08 23:28             ` Ingo Molnar
2007-03-08 23:49           ` Linus Torvalds
2007-03-09 10:56             ` Ingo Molnar
2007-03-09 18:00               ` Linus Torvalds
2007-03-09 11:19             ` Pavel Machek
2007-03-18 16:07               ` Ingo Molnar
2007-03-18 16:40                 ` [linux-pm] " Jim Gettys
2007-03-19 20:33                   ` Bill Davidsen
2007-03-19 22:08                     ` Jim Gettys
2007-03-20 14:44                       ` Bill Davidsen
2007-03-09 17:48             ` Johannes Stezenbach
2007-03-09 23:35               ` Pavel Machek
2007-03-10  9:01                 ` Ingo Molnar
2007-03-10 22:04                   ` s2ram (was Re: [2/6] 2.6.21-rc2: known regressions) Pavel Machek
2007-03-08 19:46       ` [2/6] 2.6.21-rc2: known regressions Michael S. Tsirkin
2007-03-08 19:57       ` Michael S. Tsirkin

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