linux-kernel - Re: cryptsetup + lvm on usb disk, unusable /dev/dm-* after suspend/resume cycle

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Message-ID: <4C4D8C25.8040704@redhat.com>
Date:	Mon, 26 Jul 2010 15:22:45 +0200
From:	Milan Broz <mbroz@...hat.com>
To:	Nils Radtke <lkml@...nk-Future.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: cryptsetup + lvm on usb disk, unusable /dev/dm-* after suspend/resume
  cycle

On 07/26/2010 03:06 PM, Nils Radtke wrote:
> That's what I tried and failed gloriously. I'm trying to revive my memory about the 
> situation: fs could be unmounted, however, the cryptsetup luksClose failed (IRC) and 
> therefore the dmsetup remove consequently failed also.

So instead of "cryptsetup luksClose" use dmsetup remove for crypt device too
(There was a bug in some version of cryptsetup which failed close if underlying device
disappeared, should be fixed in >=1.1.2, anyway "dmsetup remove" is low-level equivalent.)

Also see man page and "dmsetup remove -f" flag.

The usb device reinitialization is separate problem, maybe someone can help if you provide
more logs.

Milan
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