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Date: Wed, 19 Mar 2003 20:39:32 -0800
From: Greg KH <greg@kroah.com>
To: linux-kernel@vger.kernel.org
Cc: Alexander Hoogerhuis <alexh@ihatent.com>
Subject: Re: Sleeping in illegal context with 2.5.65-mm2
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On Thu, Mar 20, 2003 at 03:58:41AM +0100, Alexander Hoogerhuis wrote:
> Caught this one while booting my laptop:
> 
> drivers/usb/core/usb.c: registered new driver hci_usb
> Module bluetooth cannot be unloaded due to unsafe usage in include/linux/module.h:457
> Debug: sleeping function called from illegal context at mm/slab.c:1723
> Call Trace:
>  [<c0119d92>] __might_sleep+0x5f/0x65
>  [<c013a097>] kmalloc+0x88/0x8f
>  [<c0238111>] usb_alloc_urb+0x21/0x51
>  [<f09180bc>] hci_usb_enable_intr+0x20/0xf8 [hci_usb]

The call to usb_alloc_urb() here is being done with the GFP_ATOMIC flag,
which is correct.  Do we need to fix up the warning message to prevent
false positives like this from happening?

thanks,

greg k-h
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