linux-kernel - Re: fs/dcache.c - BUG: soft lockup - CPU#5 stuck for 22s! [systemd-udevd:1667]

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Message-ID: <CA+55aFyRDJpm2Wfg9jvXCsKYgt36=6A_++bX+Q=C4MvQRbqh_A@mail.gmail.com>
Date:	Thu, 29 May 2014 09:29:42 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Miklos Szeredi <mszeredi@...e.cz>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: fs/dcache.c - BUG: soft lockup - CPU#5 stuck for 22s! [systemd-udevd:1667]

On Thu, May 29, 2014 at 9:23 AM, Al Viro <viro@...iv.linux.org.uk> wrote:
>
> BTW, lock_parent() might be better off if in contended case it would not
> bother with rename_lock and did something like this:
> again:

Ack. I think that's much better.

             Linus
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