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SubjectRe: [dm-devel] [BUG] kernel 2.6.32.x hangs during boot process
On Thu, Jan 28, 2010 at 03:32:41PM +0900, Jun'ichi Nomura wrote:
> When MS_RDONLY, both freeze_bdev and thaw_bdev call deactivate_locked_super,
> which seems wrong. The change was introduced with the commit below:
> commit 4504230a71566785a05d3e6b53fa1ee071b864eb
> Author: Christoph Hellwig <>
> Date: Mon Aug 3 23:28:35 2009 +0200
> freeze_bdev: grab active reference to frozen superblocks
> With the attached patch, both remount-ro and remount-rw are
> rejected as EBUSY on freezed device as expected.
> Christoph, do you think this is the right fix?

Indeed, this looks wrong in my original code, and the patch looks like
the correct fix. Thanks a lot!

Reviewed-by: Christoph Hellwig <>

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