linux-kernel - RE: core: workque: workqueue recursion when unplugging usb WCDMA modem on 2.6.32 kernel

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Message-ID: <ED2979D1CA1B3E4BB166ED9990088522765E30@SJOAMSEXB01.AMERICAS.ROOT.PRI>
Date:	Wed, 21 Apr 2010 20:15:52 -0700
From:	"YuPing Luo" <YuPing.Luo@....com>
To:	"Greg KH" <greg@...ah.com>
Cc:	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: RE: core: workque: workqueue recursion when unplugging usb WCDMA modem on 2.6.32 kernel

> > On Tue, Apr 20, 2010 at 11:27:55PM -0700, YuPing Luo wrote:
> Is your console on a usb to serial device?  Or a serial port?
> if usb to serial, can you try .33-rc5 and let us know if that solves
the problem?
> greg k-h

 The console is over serial port, while the usb modem exported 2 serial
ports .
 The recursion can be avoided if introducing one dedicated work queue
thread for binder (
http://android.git.kernel.org/?p=kernel/common.git;a=blob;f=drivers/stag
ing/android/binder.c;h=99010d4b3044b2c33c9d709e334b5be7871b9599;hb=andro
id-2.6.32).

Thanks
Yuping


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