linux-kernel - Re: Linux 5.3-rc8

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Message-ID: <20190916103351.GA14308@infradead.org>
Date:   Mon, 16 Sep 2019 03:33:51 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     "Theodore Y. Ts'o" <tytso@....edu>
Cc:     "Ahmed S. Darwish" <darwish.07@...il.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jan Kara <jack@...e.cz>, zhangjs <zachary@...shancloud.com>,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Linux 5.3-rc8

On Tue, Sep 10, 2019 at 07:56:35AM -0400, Theodore Y. Ts'o wrote:
> Hmm, I'm not seeing this on a Dell XPS 13 (model 9380) using a Debian
> Bullseye (Testing) running a rc4+ kernel.
> 
> This could be because Debian is simply doing more I/O; or it could be
> because I don't have some package installed which is trying to reading
> from /dev/random or calling getrandom(2).  Previously, Fedora ran into
> blocking issues because of some FIPS compliance patches to some
> userspace daemons.  So it's going to be very user space dependent and
> package dependent.

Btw, I've been seeing this issue on debian testing with an XFS root
file system ever since the blocking random changes went in.  There
are a few reports (not from me) in the BTS since.  I ended up just
giving up on gdm and using lightdm instead as it was clearly related
to that.