linux-kernel - Re: [media/dvb_usb_af9005] BUG: unable to handle kernel paging request (WAS: [media/em28xx] BUG: unable to handle kernel)

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Message-ID: <5421E00B.2050404@ventoso.org>
Date:	Tue, 23 Sep 2014 23:03:07 +0200
From:	Luca Olivetti <luca@...toso.org>
To:	Frank Schäfer <fschaefer.oss@...glemail.com>,
	Fengguang Wu <fengguang.wu@...el.com>
CC:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	linux-media@...r.kernel.org, Jet Chen <jet.chen@...el.com>,
	Su Tao <tao.su@...el.com>, Yuanhan Liu <yuanhan.liu@...el.com>,
	LKP <lkp@...org>, linux-kernel@...r.kernel.org, crope@....fi
Subject: Re: [media/dvb_usb_af9005] BUG: unable to handle kernel paging request
 (WAS: [media/em28xx] BUG: unable to handle kernel)

El 23/09/14 20:52, Frank Schäfer ha escrit:

>>> This seems to be an ancient bug, which is known at least since 5 1/2 years:
>>> https://lkml.org/lkml/2009/2/4/350
[...]
>>
>> #if defined(CONFIG_MODULE) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
> What happens, if CONFIG_MODULES is enabled, but neither module
> af9005-remote nor any other IR module is available ?
> Has this ever been tested ?

I think I tested at the time and symbol_request returned NULL in that
case, however I'm not sure and I cannot find any documentation on how
symbol_request is supposed to work in that case.

Bye
-- 
Luca

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