From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: cbou@mail.ru
Cc: kernel-discuss@handhelds.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] genhd fix or ide workaround -- choose one
Date: Thu, 19 Oct 2006 13:05:52 +0100 [thread overview]
Message-ID: <1161259553.17335.30.camel@localhost.localdomain> (raw)
In-Reply-To: <20061018221506.GA4187@localhost>
Ar Iau, 2006-10-19 am 02:15 +0400, ysgrifennodd Anton Vorontsov:
> Hi all,
>
> I've caught deadlock inside IDE layer using IDE-CS: after accessing
> to IDE disk placed in PCMCIA (CF card really), it will never probe
> again after pulling it from PCMCIA/CF.
Works for me, and has done for a long time and I've also had no other
reports of this in the past couple of years so I'm curious what trips it
in your case ?
> The kernel is stuck at
> drivers/ide/ide.c:ide_unregister():604:
>
> 602 spin_unlock_irq(&ide_lock);
> 603 device_unregister(&drive->gendev);
> 604 wait_for_completion(&drive->gendev_rel_comp);
> 605 spin_lock_irq(&ide_lock);
We need to know all the references have gone away, if someone has a disk
referenced and you pull it out we can't clean up immediately so this is
the right place to get stuck both on a refcounting bug and if you've got
something holding a reference for real (eg HAL)
next prev parent reply other threads:[~2006-10-19 12:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-18 22:15 [PATCH] genhd fix or ide workaround -- choose one Anton Vorontsov
2006-10-19 12:05 ` Alan Cox [this message]
2006-10-19 12:25 ` Anton Vorontsov
2006-10-19 13:08 ` Alan Cox
2006-10-19 13:33 ` Anton Vorontsov
2006-10-19 14:16 ` Anton Vorontsov
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