From: "pantherchen@versanet.de" <pantherchen@versanet.de>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Tejun Heo <tj@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Boot time regression in 2.6.38 after initial wq merge
Date: Tue, 22 Feb 2011 20:32:55 +0100 [thread overview]
Message-ID: <4D640F67.3040109@versanet.de> (raw)
In-Reply-To: <20110222175955.GA27991@core.coreip.homeip.net>
On 02/22/2011 06:59 PM, Dmitry Torokhov wrote:
> On Tue, Feb 22, 2011 at 09:22:54AM -0800, Dmitry Torokhov wrote:
>> Just to confirm, if you revert commit
>>
>> 8ee294cd9def0004887da7f44b80563493b0a097
>>
>> from 2.6.38-rc6, does this restore boot time?
Yes, it's booting fine with that commit reverted.
> And if that indeed fixes the issue I wonder if the reason for the stall
> is that we trip on flush_scheduled_work() somewhere. If you could stick
> dump_stack() into flush_scheduled_work() that might give us some clues.
I wasn't sure where to put the dump_stack() call, so I placed one before
and one after the flush_workqueue() call.
Here's the part that turned up in dmesg: http://paste.ubuntu.com/570729/
Regards,
Hernando Torque
next prev parent reply other threads:[~2011-02-22 19:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4D62CE9C.7090806@versanet.de>
2011-02-22 8:17 ` Boot time regression in 2.6.38 after initial wq merge Tejun Heo
2011-02-22 8:52 ` Dmitry Torokhov
2011-02-22 9:02 ` Tejun Heo
2011-02-22 9:15 ` Dmitry Torokhov
2011-02-22 15:04 ` pantherchen
2011-02-22 17:22 ` Dmitry Torokhov
2011-02-22 17:59 ` Dmitry Torokhov
2011-02-22 19:32 ` pantherchen [this message]
2011-02-22 19:52 ` Dmitry Torokhov
2011-02-22 20:14 ` pantherchen
2011-02-23 5:20 ` Dmitry Torokhov
2011-02-23 9:38 ` Tejun Heo
2011-02-23 10:22 ` Dmitry Torokhov
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