Re: [PATCH] freezer: configure user space process frozen along withkernel threads

From: Alan Stern
Date: Wed Feb 20 2013 - 10:24:19 EST

On Wed, 20 Feb 2013, Eric W. Biederman wrote:

> Why can't the fuse filesystem freeze when there are requests pending?

It _can_ freeze (that is, the fuse daemon can). The problem is that
tasks _using_ the fuse filsystem can't if the daemon doesn't respond.
These tasks are stuck in uninterruptible wait states deep in the
filesystem layer, probably holding important locks. They can't be
frozen until the outstanding requests complete.

Alan Stern

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