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

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Message-ID: <20100422034124.GA25155@kroah.com>
Date:	Wed, 21 Apr 2010 20:41:24 -0700
From:	Greg KH <greg@...ah.com>
To:	YuPing Luo <YuPing.Luo@....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 Wed, Apr 21, 2010 at 08:15:52PM -0700, YuPing Luo wrote:
> > > 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).

Ah, it's a binder issue.  Good luck with that, you are on your own with
that monster :)

greg k-h
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