From: Pierre Ossman <drzeus-mmc@drzeus.cx>
To: Alex Dubov <oakad@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Recent and not-so problems with tifm_sd driver
Date: Mon, 19 Feb 2007 13:34:39 +0100 [thread overview]
Message-ID: <45D9995F.9070108@drzeus.cx> (raw)
In-Reply-To: <570331.88389.qm@web36706.mail.mud.yahoo.com>
Alex Dubov wrote:
>
> mmc_rescan
> mmc_register_card
> device_add
> mmc_block_probe
> mmc_block_alloc
> -> queue thread starts running
> add_disk
> -> issues a lot of requests; card fails, my drivers calls mmc_remove_host, which in
> turn calls device_del, though we are still in device_add
>
Ahhh, now I see. Well that's an entirely different kettle of fish.
Removing the device in this stack is not supported (we would have a whole bunch
of nasty dead lock possibilities to consider). You need to delay the removal in
some form, e.g. using the mmc workqueue.
Rgds
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org
next prev parent reply other threads:[~2007-02-19 12:34 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-07 22:20 [2.6.20] tifm_7xx1/mmc not working Andreas Steinmetz
2007-02-08 5:59 ` Pierre Ossman
2007-02-08 23:35 ` Alex Dubov
2007-02-09 12:27 ` Andreas Steinmetz
2007-02-09 15:14 ` Recent and not-so problems with tifm_sd driver Alex Dubov
2007-02-09 19:10 ` Pierre Ossman
2007-02-10 9:12 ` Recent and not-so problems with tifm_sd driver - one more Alex Dubov
2007-02-10 13:01 ` Pierre Ossman
2007-02-11 6:03 ` Brad Campbell
2007-02-11 14:52 ` Fabio Comolli
2007-02-11 15:40 ` Pierre Ossman
2007-02-11 15:56 ` Brad Campbell
2007-02-11 18:04 ` Pierre Ossman
2007-02-11 19:32 ` Brad Campbell
2007-02-12 9:14 ` Pierre Ossman
2007-02-12 10:50 ` Brad Campbell
2007-02-12 13:21 ` Andreas Steinmetz
2007-02-17 15:16 ` [mmc] incorrect behavior on resume Alex Dubov
2007-02-17 23:35 ` Pierre Ossman
2007-02-18 0:29 ` Pavel Machek
2007-02-18 1:46 ` Alex Dubov
2007-02-18 6:53 ` Russell King
2007-02-18 12:18 ` Alex Dubov
2007-02-11 4:47 ` Recent and not-so problems with tifm_sd driver Alex Dubov
2007-02-11 18:15 ` Pierre Ossman
2007-02-12 11:53 ` Alex Dubov
2007-02-12 13:49 ` Pierre Ossman
2007-02-13 0:44 ` Alex Dubov
2007-02-13 14:40 ` Alex Dubov
2007-02-17 23:14 ` Pierre Ossman
2007-02-17 23:51 ` Pierre Ossman
2007-02-18 4:59 ` Alex Dubov
2007-02-18 8:13 ` Pierre Ossman
2007-02-18 14:19 ` Alex Dubov
2007-02-18 15:10 ` Pierre Ossman
2007-02-18 23:48 ` Alex Dubov
2007-02-19 7:06 ` Pierre Ossman
2007-02-19 12:09 ` Alex Dubov
2007-02-19 12:34 ` Pierre Ossman [this message]
2007-02-20 1:30 ` Alex Dubov
2007-02-20 7:03 ` Pierre Ossman
2007-03-14 14:44 ` Weird MMC errors: 1 of 2 - bad ocr value Alex Dubov
2007-04-08 19:41 ` Pierre Ossman
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